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#1 Le 21/03/2020, à 14:33

malbo

[Résolu] anomalie de Boot-repair version 4ppa74

Je mets en évidence ci-après que Boot-repair version 4ppa74 merdouille pour réparer Ubuntu 20.04 : il ne sait pas purger Grub quand on sélectionne "purger Grub avant de la réinstaller" dans les options avancées de Boot-repair. Pour me faire la main, j'ai fait la manip pour réparer une installatiion de Ubuntu 18.04 (item 1 et 2) . Dans ce cas, tout marche bien et la réparation avancée s'effectue normalement.
Par contre, on peut voir dans les item 3 et 4 que la réparation d'une installation de Ubuntu 20.04 ne fonctionne pas. La purge de Grub ne se fait pas et la réparation est bloquée.

1) réparation avancée de Ubuntu 18.04 depuis une session live de Ubuntu 18.04 :

ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -a
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get install -fy
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get purge -y grub*-common grub-common:i386 shim-signed
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'grub-common' for glob 'grub*-common'
Note, selecting 'grub2-common' for glob 'grub*-common'
Package 'grub-common:i386' is not installed, so not removed. Did you mean 'grub-common'?
The following package was automatically installed and is no longer required:
  shim
Use 'sudo apt autoremove' to remove it.
The following packages will be REMOVED:
  grub-common* grub-efi-amd64-bin* grub-efi-amd64-signed*
  grub-gfxpayload-lists* grub-pc* grub-pc-bin* grub2-common* os-prober*
  shim-signed*
0 upgraded, 0 newly installed, 9 to remove and 0 not upgraded.
After this operation, 24.9 MB disk space will be freed.
(Reading database ... 164154 files and directories currently installed.)
Removing shim-signed (1.37~18.04.3+15+1533136590.3beb971-0ubuntu1) ...
Removing grub-efi-amd64-signed (1.93.16+2.02-2ubuntu8.15) ...
Removing grub-efi-amd64-bin (2.02-2ubuntu8.15) ...
Removing os-prober (1.74ubuntu1) ...
dpkg: warning: while removing os-prober, directory '/var/lib/os-prober' not empty so not removed
Removing grub-pc (2.02-2ubuntu8.15) ...
Removing grub2-common (2.02-2ubuntu8.15) ...
Removing grub-pc-bin (2.02-2ubuntu8.15) ...
Removing grub-common (2.02-2ubuntu8.15) ...
Running in chroot, ignoring request.
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: is-active
Running in chroot, ignoring request: stop
Running in chroot, ignoring request: daemon-reload
Removing grub-gfxpayload-lists (0.7) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for install-info (6.5.0.dfsg.1-2) ...
(Reading database ... 163414 files and directories currently installed.)
Purging configuration files for grub-pc (2.02-2ubuntu8.15) ...
Purging configuration files for shim-signed (1.37~18.04.3+15+1533136590.3beb971-0ubuntu1) ...
Purging configuration files for grub-common (2.02-2ubuntu8.15) ...
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: daemon-reload
Processing triggers for systemd (237-3ubuntu10.39) ...
Running in chroot, ignoring request: daemon-reload
Processing triggers for ureadahead (0.100.0-21) ...
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get install -y grub-efi-amd64-signed shim-signed linux-headers-generic linux-signed-generic
Reading package lists... Done
Building dependency tree       
Reading state information... Done
linux-headers-generic is already the newest version (4.15.0.91.83).
linux-signed-generic is already the newest version (4.15.0.91.83).
The following additional packages will be installed:
  grub-common grub-efi-amd64 grub-efi-amd64-bin grub2-common os-prober
Suggested packages:
  multiboot-doc grub-emu xorriso desktop-base
The following NEW packages will be installed:
  grub-common grub-efi-amd64 grub-efi-amd64-bin grub-efi-amd64-signed
  grub2-common os-prober shim-signed
0 upgraded, 7 newly installed, 0 to remove and 0 not upgraded.
Need to get 3373 kB/3672 kB of archives.
After this operation, 21.4 MB of additional disk space will be used.
Get:1 http://fr.archive.ubuntu.com/ubuntu bionic-updates/main amd64 grub-common amd64 2.02-2ubuntu8.15 [1775 kB]
Get:2 http://fr.archive.ubuntu.com/ubuntu bionic-updates/main amd64 grub-efi-amd64-bin amd64 2.02-2ubuntu8.15 [655 kB]
Get:3 http://fr.archive.ubuntu.com/ubuntu bionic-updates/main amd64 grub2-common amd64 2.02-2ubuntu8.15 [532 kB]
Get:4 http://fr.archive.ubuntu.com/ubuntu bionic-updates/main amd64 grub-efi-amd64 amd64 2.02-2ubuntu8.15 [47.8 kB]
Get:5 http://fr.archive.ubuntu.com/ubuntu bionic/main amd64 os-prober amd64 1.74ubuntu1 [19.8 kB]
Get:6 http://fr.archive.ubuntu.com/ubuntu bionic-updates/main amd64 shim-signed amd64 1.37~18.04.3+15+1533136590.3beb971-0ubuntu1 [344 kB]
Fetched 3373 kB in 5s (681 kB/s)    
Preconfiguring packages ...
Selecting previously unselected package grub-common.
(Reading database ... 163399 files and directories currently installed.)
Preparing to unpack .../0-grub-common_2.02-2ubuntu8.15_amd64.deb ...
Unpacking grub-common (2.02-2ubuntu8.15) ...
Selecting previously unselected package grub-efi-amd64-bin.
Preparing to unpack .../1-grub-efi-amd64-bin_2.02-2ubuntu8.15_amd64.deb ...
Unpacking grub-efi-amd64-bin (2.02-2ubuntu8.15) ...
Selecting previously unselected package grub2-common.
Preparing to unpack .../2-grub2-common_2.02-2ubuntu8.15_amd64.deb ...
Unpacking grub2-common (2.02-2ubuntu8.15) ...
Selecting previously unselected package grub-efi-amd64.
Preparing to unpack .../3-grub-efi-amd64_2.02-2ubuntu8.15_amd64.deb ...
Unpacking grub-efi-amd64 (2.02-2ubuntu8.15) ...
Selecting previously unselected package grub-efi-amd64-signed.
Preparing to unpack .../4-grub-efi-amd64-signed_1.93.16+2.02-2ubuntu8.15_amd64.deb ...
Unpacking grub-efi-amd64-signed (1.93.16+2.02-2ubuntu8.15) ...
Selecting previously unselected package os-prober.
Preparing to unpack .../5-os-prober_1.74ubuntu1_amd64.deb ...
Unpacking os-prober (1.74ubuntu1) ...
Selecting previously unselected package shim-signed.
Preparing to unpack .../6-shim-signed_1.37~18.04.3+15+1533136590.3beb971-0ubuntu1_amd64.deb ...
Unpacking shim-signed (1.37~18.04.3+15+1533136590.3beb971-0ubuntu1) ...
Setting up grub-common (2.02-2ubuntu8.15) ...
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request.
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: is-active
Running in chroot, ignoring request: start
Setting up grub-efi-amd64-bin (2.02-2ubuntu8.15) ...
Setting up grub2-common (2.02-2ubuntu8.15) ...
Setting up os-prober (1.74ubuntu1) ...
Setting up grub-efi-amd64 (2.02-2ubuntu8.15) ...

Creating config file /etc/default/grub with new version
Installing for x86_64-efi platform.
Installation finished. No error reported.
Setting up grub-efi-amd64-signed (1.93.16+2.02-2ubuntu8.15) ...
Installing for x86_64-efi platform.
Installation finished. No error reported.
Setting up shim-signed (1.37~18.04.3+15+1533136590.3beb971-0ubuntu1) ...
Installing for x86_64-efi platform.
Installation finished. No error reported.
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for ureadahead (0.100.0-21) ...
Processing triggers for install-info (6.5.0.dfsg.1-2) ...
Processing triggers for systemd (237-3ubuntu10.39) ...
Running in chroot, ignoring request: daemon-reload
ubuntu@ubuntu:~$ 

Rapport final :
Boot successfully repaired.

Please write on a paper the following URL:
http://paste.ubuntu.com/p/FHZKYXwtKJ/
Je colle le contenu de ce rapport :

Boot Info Script 71f6c5c + Boot-Repair extra info      [Boot-Info 16mar2020]


============================= Boot Info Summary: ===============================

 => Grub2 (v1.99-2.00) is installed in the MBR of /dev/sda and looks at sector 
    73789248 of the same hard drive for core.img, but core.img can not be 
    found at this location.
 => libparted MBR boot code is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sda2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows 8/2012: FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/ubuntu/grub.cfg /efi/BOOT/bkpbootx64.efi 
                       /efi/BOOT/bootx64.efi /efi/BOOT/fbx64.efi 
                       /efi/BOOT/grubx64.efi /efi/ubuntu/fwupx64.efi 
                       /efi/ubuntu/grubx64.efi /efi/ubuntu/mmx64.efi 
                       /efi/ubuntu/shimx64.efi /efi/ubuntu/grub.cfg 
                       /efi/Microsoft/Boot/bootmgfw.efi 
                       /efi/Microsoft/Boot/bootmgr.efi 
                       /efi/Microsoft/Boot/memtest.efi

sda3: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 

sda4: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /Windows/System32/winload.exe

sda5: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 18.04.4 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab

sda6: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

sda7: __________________________________________________________________________

    File system:       swap
    Boot sector type:  -
    Boot sector info: 

sdb1: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

============================ Drive/Partition Info: =============================

Drive: sda _____________________________________________________________________
Disk /dev/sda: 40.3 GiB, 43294556160 bytes, 84559680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1    84,559,679    84,559,679  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048       923,647       921,600 Windows Recovery Environment (Windows)
/dev/sda2               923,648     1,126,399       202,752 EFI System partition
/dev/sda3             1,126,400     1,159,167        32,768 EFI System partition
/dev/sda4             1,159,168    50,636,799    49,477,632 Data partition (Windows/Linux)
/dev/sda5            50,636,800    78,698,495    28,061,696 Data partition (Linux)
/dev/sda6            78,698,496    82,606,079     3,907,584 Data partition (Linux)
/dev/sda7            82,606,080    84,557,823     1,951,744 Swap partition (Linux)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1               2,048    67,108,863    67,106,816  83 Linux


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/loop1                                              squashfs   
/dev/loop2                                              squashfs   
/dev/loop3                                              squashfs   
/dev/loop4                                              squashfs   
/dev/loop5                                              squashfs   
/dev/loop6                                              squashfs   
/dev/loop7                                              squashfs   
/dev/sda1        72E8CBBEE8CB7EBB                       ntfs       Récupération
/dev/sda2        C4D1-8AAE                              vfat       
/dev/sda3                                                          
/dev/sda4        B606ECD606EC989F                       ntfs       
/dev/sda5        7867687a-23dd-4ba9-a158-f3781c9d569e   ext4       
/dev/sda6        5c83c06b-be67-4270-80bb-3ee816fc5788   ext4       
/dev/sda7        9eb0b62d-a932-4de1-a3f5-be40200e5123   swap       
/dev/sdb1        6c14aa5c-a67b-4211-afd2-42ff350e60b0   ext4       images_win10_EFI
/dev/sr0         2018-07-25-03-21-56-00                 iso9660    Ubuntu 18.04.1 LTS amd64

========================= "ls -l /dev/disk/by-id" output: ======================

total 0
lrwxrwxrwx 1 root root  9 Mar 21 11:42 ata-VBOX_CD-ROM_VB1-1a2b3c4d -> ../../sr0
lrwxrwxrwx 1 root root  9 Mar 21 11:55 ata-VBOX_HARDDISK_VB2db79605-645acf7a -> ../../sda
lrwxrwxrwx 1 root root 10 Mar 21 12:27 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Mar 21 11:55 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Mar 21 11:55 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Mar 21 12:27 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Mar 21 11:55 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Mar 21 11:55 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part6 -> ../../sda6
lrwxrwxrwx 1 root root 10 Mar 21 11:55 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part7 -> ../../sda7
lrwxrwxrwx 1 root root  9 Mar 21 11:55 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f -> ../../sdb
lrwxrwxrwx 1 root root 10 Mar 21 11:55 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f-part1 -> ../../sdb1

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/loop0       /rofs                    squashfs   (ro,noatime)
/dev/sr0         /cdrom                   iso9660    (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)


========================== sda2/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 7867687a-23dd-4ba9-a158-f3781c9d569e root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

========================== sda2/efi/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 7867687a-23dd-4ba9-a158-f3781c9d569e root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=========================== sda5/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
else
  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=C
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=10
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=10
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 10 ; then
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30,0; then
  clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=1
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-7867687a-23dd-4ba9-a158-f3781c9d569e' {
	recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
	else
	  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
	fi
        linux	/boot/vmlinuz-4.15.0-91-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-4.15.0-91-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
	menuentry 'Ubuntu, with Linux 4.15.0-91-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-91-generic-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-91-generic ...'
	        linux	/boot/vmlinuz-4.15.0-91-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-91-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-91-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-91-generic-recovery-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-91-generic ...'
	        linux	/boot/vmlinuz-4.15.0-91-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-91-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-88-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-88-generic-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-88-generic ...'
	        linux	/boot/vmlinuz-4.15.0-88-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-88-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-88-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-88-generic-recovery-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-88-generic ...'
	        linux	/boot/vmlinuz-4.15.0-88-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-88-generic
	}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/25_custom ###

menuentry "Windows UEFI bootmgfw.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}

menuentry "EFI/BOOT/bkpbootx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/bkpbootx64.efi
}

menuentry "EFI/BOOT/fbx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/fbx64.efi
}

menuentry "EFI/ubuntu/fwupx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/fwupx64.efi
}

menuentry "EFI/ubuntu/mmx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/mmx64.efi
}
### END /etc/grub.d/25_custom ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-C4D1-8AAE' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  C4D1-8AAE
	else
	  search --no-floppy --fs-uuid --set=root C4D1-8AAE
	fi
	chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'System setup' $menuentry_id_option 'uefi-firmware' {
	fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sda5/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda5 during installation
UUID=7867687a-23dd-4ba9-a158-f3781c9d569e /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda2 during installation
#UUID=C4D1-8AAE  /boot/efi       vfat    umask=0077      0       1
# /home was on /dev/sda6 during installation
UUID=5c83c06b-be67-4270-80bb-3ee816fc5788 /home           ext4    defaults        0       2
# swap was on /dev/sda7 during installation
UUID=9eb0b62d-a932-4de1-a3f5-be40200e5123 none            swap    sw              0       0
UUID=C4D1-8AAE	/boot/efi	vfat	defaults	0	1
--------------------------------------------------------------------------------

=================== sda5: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

  28.272209167 = 30.357053440   boot/grub/grub.cfg                             1
  36.688472748 = 39.393947648   boot/vmlinuz-4.15.0-88-generic                 2
  37.141586304 = 39.880474624   boot/vmlinuz-4.15.0-91-generic                 2
  37.141586304 = 39.880474624   vmlinuz                                        2
  36.688472748 = 39.393947648   vmlinuz.old                                    2
  27.854072571 = 29.908082688   boot/initrd.img-4.15.0-88-generic              5
  27.637401581 = 29.675433984   boot/initrd.img-4.15.0-91-generic              5
  27.637401581 = 29.675433984   initrd.img                                     5
  27.854072571 = 29.908082688   initrd.img.old                                 5

=============================== StdErr Messages: ===============================

File descriptor 9 (/proc/24697/mountinfo) leaked on lvs invocation. Parent PID 15135: bash
File descriptor 63 (pipe:[90242]) leaked on lvs invocation. Parent PID 15135: bash

ADDITIONAL INFORMATION :
=================== log of boot-repair 20200321_1154 ===================
boot-repair version : 4ppa74
boot-sav version : 4ppa74
boot-sav-extra version : 4ppa74
glade2script version : 3.2.4~ppa6
Warning: Unable to open /dev/sr0 read-write (Read-only file system).  /dev/sr0 has been opened read-only.
boot-repair is executed in live-session (Ubuntu 18.04.1 LTS, bionic, Ubuntu, x86_64)
CPU op-mode(s):      32-bit, 64-bit
BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
ls: cannot access '/home/usr/.config': No such file or directory

=================== os-prober:
/dev/sda2@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
/dev/sda5:Ubuntu 18.04.4 LTS (18.04):Ubuntu:linux

=================== blkid:
/dev/sda1: LABEL="RM-CM-)cupM-CM-)ration" UUID="72E8CBBEE8CB7EBB" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="07380664-6dd4-4925-aeac-a435b34ad9f5"
/dev/sda2: UUID="C4D1-8AAE" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="1ab7abb3-31e4-4289-9a3a-587ac6546242"
/dev/sda4: UUID="B606ECD606EC989F" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="63728c63-f8c6-4f3b-8882-3688c4f80734"
/dev/sda5: UUID="7867687a-23dd-4ba9-a158-f3781c9d569e" TYPE="ext4" PARTUUID="8e8ca714-97e7-45a9-afd0-d9ee0c9499c1"
/dev/sda6: UUID="5c83c06b-be67-4270-80bb-3ee816fc5788" TYPE="ext4" PARTUUID="887c27c8-878d-4241-9ee8-e23d01b4b371"
/dev/sdb1: LABEL="images_win10_EFI" UUID="6c14aa5c-a67b-4211-afd2-42ff350e60b0" TYPE="ext4" PARTUUID="52caac94-01"
/dev/sr0: UUID="2018-07-25-03-21-56-00" LABEL="Ubuntu 18.04.1 LTS amd64" TYPE="iso9660" PTUUID="663eb4c4" PTTYPE="dos"
/dev/loop0: TYPE="squashfs"
/dev/loop1: TYPE="squashfs"
/dev/loop2: TYPE="squashfs"
/dev/loop3: TYPE="squashfs"
/dev/loop4: TYPE="squashfs"
/dev/loop5: TYPE="squashfs"
/dev/loop6: TYPE="squashfs"
/dev/loop7: TYPE="squashfs"
/dev/sda7: UUID="9eb0b62d-a932-4de1-a3f5-be40200e5123" TYPE="swap" PARTUUID="11dedfb2-818f-475f-90cd-2da94e38357f"
/dev/sda3: PARTLABEL="Microsoft reserved partition" PARTUUID="c21c3b27-c875-4428-a0d8-0c431338197b"


1 disks with OS, 2 OS : 1 Linux, 0 MacOS, 1 Windows, 0 unknown type OS.

Windows not detected by os-prober on sda4.
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda2/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/bkpbootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/grubx64.efi
Presence of bkp file detected: /mnt/boot-sav/sda2/EFI/BOOT/bkpbootx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 21 11:49 grub.d
total 84
-rwxr-xr-x 1 root root 10046 Mar 18  2019 00_header
-rwxr-xr-x 1 root root  6258 Jul 16  2018 05_debian_theme
-rwxr-xr-x 1 root root 12693 Jul 17  2018 10_linux
-rwxr-xr-x 1 root root 11298 Jul 17  2018 20_linux_xen
-rwxr-xr-x 1 root root  1992 Jan 28  2016 20_memtest86+
-rwxr-xr-x 1 root root   706 Mar 21 11:49 25_custom
-rwxr-xr-x 1 root root 12059 Jul 17  2018 30_os-prober
-rwxr-xr-x 1 root root  1418 Jul 17  2018 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Jul 17  2018 40_custom
-rwxr-xr-x 1 root root   216 Jul 17  2018 41_custom
-rw-r--r-- 1 root root   483 Jul 17  2018 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
#GRUB_CMDLINE_LINUX_DEFAULT="fsck.mode=force fsck.repair=yes"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"





/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
ls /sys/firmware/efi/vars : new_var,del_var,boot-args-7c436110-ab2a-4bbb-a880-fe41995c9f82,Test1-e660597e-b94d-4209-9c80-1805b5d19b69,Test0-e660597e-b94d-4209-9c80-1805b5d19b69,RTC-378d7b65-8da9-4773-b6e4-a47826a833e1,PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c,OsIndicationsSupported-8be4df61-93ca-11d2-aa0d-00e098032b8c,MokListRT-605dab50-e046-4300-abb6-3dd810dd8b23,MemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa,MTC-eb704011-1402-11d3-8e77-00a0c969723b,LastEnumLang-0e8c545b-a2ee-470d-8e26-bda1a13c0aa3,LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c,HDDP-fab7e9e1-39dd-4f2b-8408-e20e906cb6de,FirmwareFeaturesMask-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,FirmwareFeatures-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOptionSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0004-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0003-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0002-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c,BackgroundClear-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,
Please report this message to boot.repair@gmail.com

=================== efibootmgr -v
BootCurrent: 0000
BootOrder: 0004,0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
Boot0004* ubuntu	HD(2,GPT,1ab7abb3-31e4-4289-9a3a-587ac6546242,0xe1800,0x31800)/File(EFIubuntushimx64.efi)

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot maybe enabled. (maybe sec-boot, Please report this message to boot.repair@gmail.com)


=================== PARTITIONS & DISKS:
sda1	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda1.
sda2	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	is-correct-EFI,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda2.
sda4	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	haswinload,	no-recov-nor-hid,	bootmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda4.
sda5	: sda,	not-sepboot,	grubenv-ok	grub2,	signed grub-pc grub-efi ,	update-grub,	64,	with-boot,	is-os,	not--efi--part,	fstab-without-boot,	fstab-has-goodEFI,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	apt-get,	grub-install,	with--usr,	fstab-without-usr,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda5.
sda6	: sda,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda6.
sdb1	: sdb,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sdb1.

sda	: GPT,	no-BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes
sdb	: not-GPT,	BIOSboot-not-needed,	has-no-EFIpart, 	not-usb,	not-mmc, no-os,	2048 sectors * 512 bytes


=================== parted -lm:

BYT;
/dev/sda:43.3GB:scsi:512:512:gpt:ATA VBOX HARDDISK:;
1:1049kB:473MB:472MB:ntfs:Basic data partition:diag;
2:473MB:577MB:104MB:fat32:EFI system partition:boot, esp;
3:577MB:593MB:16.8MB::Microsoft reserved partition:boot, esp;
4:593MB:25.9GB:25.3GB:ntfs:Basic data partition:msftdata;
5:25.9GB:40.3GB:14.4GB:ext4::;
6:40.3GB:42.3GB:2001MB:ext4::;
7:42.3GB:43.3GB:999MB:linux-swap(v1)::;

BYT;
/dev/sdb:34.4GB:scsi:512:512:msdos:ATA VBOX HARDDISK:;
1:1049kB:34.4GB:34.4GB:ext4::;

BYT;
/dev/sr0:1953MB:scsi:2048:2048:mac:VBOX CD-ROM:;
1:2048B:6143B:4096B::Apple:;
2:1913MB:1916MB:2392kB::EFI:;

=================== lsblk:
KNAME TYPE FSTYPE     SIZE LABEL
loop0 loop squashfs   1.8G
loop1 loop squashfs  86.9M
loop2 loop squashfs  34.7M
loop3 loop squashfs 140.9M
loop4 loop squashfs   2.3M
loop5 loop squashfs    13M
loop6 loop squashfs  14.5M
loop7 loop squashfs   3.7M
sda   disk           40.3G
sda1  part ntfs       450M Récupération
sda2  part vfat        99M
sda3  part             16M
sda4  part ntfs      23.6G
sda5  part ext4      13.4G
sda6  part ext4       1.9G
sda7  part swap       953M
sdb   disk             32G
sdb1  part ext4        32G images_win10_EFI
sr0   rom  iso9660    1.8G Ubuntu 18.04.1 LTS amd64

KNAME ROTA RO RM STATE   MOUNTPOINT
loop0    1  1  0         /rofs
loop1    1  1  0         /snap/core/4917
loop2    1  1  0         /snap/gtk-common-themes/319
loop3    1  1  0         /snap/gnome-3-26-1604/70
loop4    1  1  0         /snap/gnome-calculator/180
loop5    1  1  0         /snap/gnome-characters/103
loop6    1  1  0         /snap/gnome-logs/37
loop7    1  1  0         /snap/gnome-system-monitor/51
sda      1  0  0 running
sda1     1  0  0         /mnt/boot-sav/sda1
sda2     1  0  0         /mnt/boot-sav/sda2
sda3     1  0  0
sda4     1  0  0         /mnt/boot-sav/sda4
sda5     1  0  0         /mnt/boot-sav/sda5
sda6     1  0  0         /mnt/boot-sav/sda6
sda7     1  0  0         [SWAP]
sdb      1  0  0 running
sdb1     1  0  0         /mnt/boot-sav/sdb1
sr0      1  0  1 running /cdrom


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=999156k,nr_inodes=249789,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=204068k,mode=755)
/dev/sr0 on /cdrom type iso9660 (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)
/dev/loop0 on /rofs type squashfs (ro,noatime)
/cow on / type overlay (rw,relatime,lowerdir=//filesystem.squashfs,upperdir=/cow/upper,workdir=/cow/work)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=36,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=14814)
configfs on /sys/kernel/config type configfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime)
tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=204064k,mode=700,uid=999,gid=999)
gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/var/lib/snapd/snaps/core_4917.snap on /snap/core/4917 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_319.snap on /snap/gtk-common-themes/319 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-26-1604_70.snap on /snap/gnome-3-26-1604/70 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-calculator_180.snap on /snap/gnome-calculator/180 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-characters_103.snap on /snap/gnome-characters/103 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-logs_37.snap on /snap/gnome-logs/37 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-system-monitor_51.snap on /snap/gnome-system-monitor/51 type squashfs (ro,nodev,relatime,x-gdu.hide)
/dev/sda1 on /mnt/boot-sav/sda1 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda2 on /mnt/boot-sav/sda2 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda4 on /mnt/boot-sav/sda4 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda5 on /mnt/boot-sav/sda5 type ext4 (rw,relatime,data=ordered)
/dev/sda6 on /mnt/boot-sav/sda6 type ext4 (rw,relatime,data=ordered)
/dev/sdb1 on /mnt/boot-sav/sdb1 type ext4 (rw,relatime,data=ordered)


=================== ls:
/sys/block/sda (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity power queue range removable ro sda1 sda2 sda3 sda4 sda5 sda6 sda7 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/sys/block/sr0 (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity power queue range removable ro size slaves stat subsystem trace uevent
/dev (filtered):  autofs block bsg btrfs-control bus cdrom char console core cpu_dma_latency cuse disk dri dvd ecryptfs fb0 fd full fuse hidraw0 hpet hugepages hwrng i2c-0 initctl input kmsg lightnvm log mapper mcelog mem memory_bandwidth mqueue net network_latency network_throughput null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda3 sda4 sda5 sda6 sda7 sdb sdb1 sg0 sg1 sg2 shm snapshot snd sr0 stderr stdin stdout uhid uinput urandom userio vboxguest vboxuser vfio vga_arbiter vhci vhost-net vhost-vsock zero
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff 0f 0e 00 00 00 00 00  |................|
00000030  00 96 00 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  bb 7e cb e8 be cb e8 72  |.........~.....r|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda2
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 02 0e 1a  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 18 0e 00  |........?.......|
00000020  00 18 03 00 f9 02 00 00  00 00 00 00 02 00 00 00  |................|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 01 29 ae 8a d1 c4 4e  4f 20 4e 41 4d 45 20 20  |..)....NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  88 56 40 88 4e 02 8a 56  |{......|.V@.N..V|
00000070  40 b4 41 bb aa 55 cd 13  72 10 81 fb 55 aa 75 0a  |@.A..U..r...U.u.|
00000080  f6 c1 01 74 05 fe 46 02  eb 2d 8a 56 40 b4 08 cd  |...t..F..-.V@...|
00000090  13 73 05 b9 ff ff 8a f1  66 0f b6 c6 40 66 0f b6  |.s......f...@f..|
000000a0  d1 80 e2 3f f7 e2 86 cd  c0 ed 06 41 66 0f b7 c9  |...?.......Af...|
000000b0  66 f7 e1 66 89 46 f8 83  7e 16 00 75 39 83 7e 2a  |f..f.F..~..u9.~*|
000000c0  00 77 33 66 8b 46 1c 66  83 c0 0c bb 00 80 b9 01  |.w3f.F.f........|
000000d0  00 e8 2c 00 e9 a8 03 a1  f8 7d 80 c4 7c 8b f0 ac  |..,......}..|...|
000000e0  84 c0 74 17 3c ff 74 09  b4 0e bb 07 00 cd 10 eb  |..t.<.t.........|
000000f0  ee a1 fa 7d eb e4 a1 7d  80 eb df 98 cd 16 cd 19  |...}...}........|
00000100  66 60 80 7e 02 00 0f 84  20 00 66 6a 00 66 50 06  |f`.~.... .fj.fP.|
00000110  53 66 68 10 00 01 00 b4  42 8a 56 40 8b f4 cd 13  |Sfh.....B.V@....|
00000120  66 58 66 58 66 58 66 58  eb 33 66 3b 46 f8 72 03  |fXfXfXfX.3f;F.r.|
00000130  f9 eb 2a 66 33 d2 66 0f  b7 4e 18 66 f7 f1 fe c2  |..*f3.f..N.f....|
00000140  8a ca 66 8b d0 66 c1 ea  10 f7 76 1a 86 d6 8a 56  |..f..f....v....V|
00000150  40 8a e8 c0 e4 06 0a cc  b8 01 02 cd 13 66 61 0f  |@............fa.|
00000160  82 74 ff 81 c3 00 02 66  40 49 75 94 c3 42 4f 4f  |.t.....f@Iu..BOO|
00000170  54 4d 47 52 20 20 20 20  00 00 00 00 00 00 00 00  |TMGR    ........|
00000180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  00 00 00 00 00 00 00 00  00 00 00 00 0d 0a 45 72  |..............Er|
000001b0  72 2e 20 64 69 73 71 75  65 ff 0d 0a 50 72 65 73  |r. disque...Pres|
000001c0  73 65 7a 20 75 6e 65 20  74 6f 75 63 68 65 20 70  |sez une touche p|
000001d0  6f 75 72 20 72 65 64 82  6d 61 72 72 65 72 0d 0a  |our red.marrer..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 00 00  ac 01 ba 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda4
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 b0 11 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff f7 f2 02 00 00 00 00  |................|
00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  9f 98 ec 06 d6 ec 06 b6  |................|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== df -Th:

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  976M     0  976M   0% /dev
tmpfs          tmpfs     200M  1.4M  198M   1% /run
/dev/sr0       iso9660   1.9G  1.9G     0 100% /cdrom
/dev/loop0     squashfs  1.8G  1.8G     0 100% /rofs
/cow           overlay   997M  422M  576M  43% /
tmpfs          tmpfs     997M     0  997M   0% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     997M     0  997M   0% /sys/fs/cgroup
tmpfs          tmpfs     997M  2.1M  995M   1% /tmp
tmpfs          tmpfs     200M   44K  200M   1% /run/user/999
/dev/loop1     squashfs   87M   87M     0 100% /snap/core/4917
/dev/loop2     squashfs   35M   35M     0 100% /snap/gtk-common-themes/319
/dev/loop3     squashfs  141M  141M     0 100% /snap/gnome-3-26-1604/70
/dev/loop4     squashfs  2.4M  2.4M     0 100% /snap/gnome-calculator/180
/dev/loop5     squashfs   13M   13M     0 100% /snap/gnome-characters/103
/dev/loop6     squashfs   15M   15M     0 100% /snap/gnome-logs/37
/dev/loop7     squashfs  3.8M  3.8M     0 100% /snap/gnome-system-monitor/51
/dev/sda1      fuseblk   450M  389M   62M  87% /mnt/boot-sav/sda1
/dev/sda2      vfat       95M   64M   32M  67% /mnt/boot-sav/sda2
/dev/sda4      fuseblk    24G   17G  7.3G  70% /mnt/boot-sav/sda4
/dev/sda5      ext4       14G  6.1G  6.5G  49% /mnt/boot-sav/sda5
/dev/sda6      ext4      1.9G   64M  1.7G   4% /mnt/boot-sav/sda6
/dev/sdb1      ext4       32G   16G   15G  53% /mnt/boot-sav/sdb1

=================== fdisk -l:
Disk /dev/loop0: 1.8 GiB, 1864450048 bytes, 3641504 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop1: 86.9 MiB, 91099136 bytes, 177928 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop2: 34.7 MiB, 36323328 bytes, 70944 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop3: 140.9 MiB, 147722240 bytes, 288520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop4: 2.3 MiB, 2433024 bytes, 4752 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop5: 13 MiB, 13619200 bytes, 26600 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop6: 14.5 MiB, 15196160 bytes, 29680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop7: 3.7 MiB, 3887104 bytes, 7592 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 40.3 GiB, 43294556160 bytes, 84559680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 2530EA09-698D-4322-B791-29F4A072F62E

Device        Start      End  Sectors  Size Type
/dev/sda1      2048   923647   921600  450M Windows recovery environment
/dev/sda2    923648  1126399   202752   99M EFI System
/dev/sda3   1126400  1159167    32768   16M EFI System
/dev/sda4   1159168 50636799 49477632 23.6G Microsoft basic data
/dev/sda5  50636800 78698495 28061696 13.4G Linux filesystem
/dev/sda6  78698496 82606079  3907584  1.9G Linux filesystem
/dev/sda7  82606080 84557823  1951744  953M Linux swap


Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x52caac94

Device     Boot Start      End  Sectors Size Id Type
/dev/sdb1        2048 67108863 67106816  32G 83 Linux




=================== Default settings of Boot Repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda2/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file  restore-efi-backups


=================== Final advice in case of suggested repair
Please do not forget to make your BIOS boot on sda2/efi/.../grub*.efi file!

If your computer reboots directly into Windows, try to change the boot order in your BIOS.
If your BIOS does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI\...\grub*.efi


=================== User settings
The settings chosen by the user will purge (in order to unsign) and reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda2/boot/efi,
Additional repair will be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file  restore-efi-backups


rm /mnt/boot-sav/sda2/efi/Boot/bootx64.efi
Quantity of real Windows: 1
Mount sda2 on /mnt/boot-sav/sda5/boot/efi
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi
chroot /mnt/boot-sav/sda5 apt-get -y update
Purge the GRUB of sda5
grub-efi-amd64-signed available


0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
DEBCHECK debOK, grub-efi-amd64-signed
DEBCHECK debOK
shim-signed available
Please type: sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -ansudo chroot "/mnt/boot-sav/sda5" apt-get install -fynsudo chroot "/mnt/boot-sav/sda5" apt-get purge -y grub*-common grub-common:i386 shim-signed
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 21 12:21 grub.d
total 8
-rwxr-xr-x 1 root root 1992 Jan 28  2016 20_memtest86+
-rwxr-xr-x 1 root root  706 Mar 21 11:49 25_custom


/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
shim-signed available
linux-headers-generic available
linux-signed-generic available
Then type: sudo chroot "/mnt/boot-sav/sda5" apt-get install -y grub-efi-amd64-signed shim-signed linux-headers-generic linux-signed-generic
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 21 12:23 grub.d
drwxr-xr-x  2 root root    4096 Mar 21 12:21 grub.d.bak
total 76
-rwxr-xr-x 1 root root 10046 Mar 11 20:57 00_header
-rwxr-xr-x 1 root root  6258 Mar 11 20:57 05_debian_theme
-rwxr-xr-x 1 root root 12693 Mar 11 20:57 10_linux
-rwxr-xr-x 1 root root 11298 Mar 11 20:57 20_linux_xen
-rwxr-xr-x 1 root root 12059 Mar 11 20:57 30_os-prober
-rwxr-xr-x 1 root root  1418 Mar 11 20:57 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Mar 11 20:57 40_custom
-rwxr-xr-x 1 root root   216 Mar 11 20:57 41_custom
-rw-r--r-- 1 root root   483 Mar 11 20:57 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
Unhide GRUB boot menu in sda5/etc/default/grub
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 21 12:23 grub.d
drwxr-xr-x  2 root root    4096 Mar 21 12:21 grub.d.bak
total 76
-rwxr-xr-x 1 root root 10046 Mar 11 20:57 00_header
-rwxr-xr-x 1 root root  6258 Mar 11 20:57 05_debian_theme
-rwxr-xr-x 1 root root 12693 Mar 11 20:57 10_linux
-rwxr-xr-x 1 root root 11298 Mar 11 20:57 20_linux_xen
-rwxr-xr-x 1 root root 12059 Mar 11 20:57 30_os-prober
-rwxr-xr-x 1 root root  1418 Mar 11 20:57 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Mar 11 20:57 40_custom
-rwxr-xr-x 1 root root   216 Mar 11 20:57 41_custom
-rw-r--r-- 1 root root   483 Mar 11 20:57 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
lspci: Unable to load libkmod resources: error -12

*******lspci -nnk | grep -iA3 vga
00:02.0 VGA compatible controller [0300]: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef]
Kernel driver in use: vboxvideo
00:03.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit Ethernet Controller [8086:100e] (rev 02)
Subsystem: Intel Corporation PRO/1000 MT Desktop Adapter [8086:001e]
*******

grub-install --version
grub-install (GRUB) 2.02-2ubuntu8.15,grub-install (GRUB) 2.

chroot /mnt/boot-sav/sda5 efibootmgr -v
BootCurrent: 0000
BootOrder: 0004,0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
Boot0004* ubuntu	HD(2,GPT,1ab7abb3-31e4-4289-9a3a-587ac6546242,0xe1800,0x31800)/File(EFIubuntushimx64.efi)

chroot /mnt/boot-sav/sda5 uname -r
Kernel: 4.15.0-29-generic

Reinstall the grub-efi-amd64-signed shim-signed linux-headers-generic linux-signed-generic of sda5
Installing for x86_64-efi platform.
Installation finished. No error reported.
grub-install --efi-directory=/boot/efi --target=x86_64-efi --uefi-secure-boot : exit code of grub-install :0
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi
df /dev/sda2
mv /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bkpbootx64.efi
cp /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/shimx64.efi /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi /BOOT/bkpbootx64.efi
Add /mnt/boot-sav/sda5/boot/efi efi entries in /mnt/boot-sav/sda5/etc/grub.d/25_custom
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/BOOT/bkpbootx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/BOOT/fbx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/fwupx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/mmx64.efi
sda2/bootmgfw.efi already added
Installing for x86_64-efi platform.
Installation finished. No error reported.
grub-install --efi-directory=/boot/efi --target=x86_64-efi --uefi-secure-boot : exit code of grub-install :0

chroot /mnt/boot-sav/sda5 efibootmgr -v
BootCurrent: 0000
BootOrder: 0004,0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
Boot0004* ubuntu	HD(2,GPT,1ab7abb3-31e4-4289-9a3a-587ac6546242,0xe1800,0x31800)/File(EFIubuntushimx64.efi)

chroot /mnt/boot-sav/sda5 update-grub
Sourcing file `/etc/default/grub'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.15.0-91-generic
Found initrd image: /boot/initrd.img-4.15.0-91-generic
Found linux image: /boot/vmlinuz-4.15.0-88-generic
Found initrd image: /boot/initrd.img-4.15.0-88-generic
Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi
Adding boot menu entry for EFI firmware configuration
Unhide GRUB boot menu in sda5/boot/grub/grub.cfg

Boot successfully repaired.

You can now reboot your computer.
Please do not forget to make your BIOS boot on sda2/EFI/ubuntu/shimx64.efi file!

If your computer reboots directly into Windows, try to change the boot order in your BIOS.
If your BIOS does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI\ubuntu\shimx64.efi

2) réparation avancée de Ubuntu 18.04 depuis une session live de Ubuntu 20.04

ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -a
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -a
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get install -fy
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get purge -y grub*-common grub-common:i386 shim-signed
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'grub-common' for glob 'grub*-common'
Note, selecting 'grub2-common' for glob 'grub*-common'
Package 'grub-common:i386' is not installed, so not removed. Did you mean 'grub-common'?
The following package was automatically installed and is no longer required:
  shim
Use 'sudo apt autoremove' to remove it.
The following packages will be REMOVED:
  grub-common* grub-efi-amd64* grub-efi-amd64-bin* grub-efi-amd64-signed*
  grub2-common* os-prober* shim-signed*
0 upgraded, 0 newly installed, 7 to remove and 0 not upgraded.
After this operation, 21.4 MB disk space will be freed.
(Reading database ... 163839 files and directories currently installed.)
Removing shim-signed (1.37~18.04.3+15+1533136590.3beb971-0ubuntu1) ...
Removing grub-efi-amd64-signed (1.93.16+2.02-2ubuntu8.15) ...
Removing grub-efi-amd64 (2.02-2ubuntu8.15) ...
Removing grub2-common (2.02-2ubuntu8.15) ...
Removing grub-efi-amd64-bin (2.02-2ubuntu8.15) ...
Removing os-prober (1.74ubuntu1) ...
dpkg: warning: while removing os-prober, directory '/var/lib/os-prober' not empty so not removed
Removing grub-common (2.02-2ubuntu8.15) ...
Running in chroot, ignoring request.
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: is-active
Running in chroot, ignoring request: stop
Running in chroot, ignoring request: daemon-reload
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for install-info (6.5.0.dfsg.1-2) ...
(Reading database ... 163414 files and directories currently installed.)
Purging configuration files for grub-efi-amd64 (2.02-2ubuntu8.15) ...
Purging configuration files for shim-signed (1.37~18.04.3+15+1533136590.3beb971-0ubuntu1) ...
Purging configuration files for grub-common (2.02-2ubuntu8.15) ...
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: daemon-reload
dpkg: warning: while removing grub-common, directory '/etc/grub.d' not empty so not removed
Processing triggers for systemd (237-3ubuntu10.39) ...
Running in chroot, ignoring request: daemon-reload
Processing triggers for ureadahead (0.100.0-21) ...
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get install -y grub-efi-amd64-signed shim-signed linux-headers-generic linux-signed-generic
Reading package lists... Done
Building dependency tree       
Reading state information... Done
linux-headers-generic is already the newest version (4.15.0.91.83).
linux-signed-generic is already the newest version (4.15.0.91.83).
The following additional packages will be installed:
  grub-common grub-efi-amd64 grub-efi-amd64-bin grub2-common os-prober
Suggested packages:
  multiboot-doc grub-emu xorriso desktop-base
The following NEW packages will be installed:
  grub-common grub-efi-amd64 grub-efi-amd64-bin grub-efi-amd64-signed
  grub2-common os-prober shim-signed
0 upgraded, 7 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/3672 kB of archives.
After this operation, 21.4 MB of additional disk space will be used.
Preconfiguring packages ...
Selecting previously unselected package grub-common.
(Reading database ... 163398 files and directories currently installed.)
Preparing to unpack .../0-grub-common_2.02-2ubuntu8.15_amd64.deb ...
Unpacking grub-common (2.02-2ubuntu8.15) ...
Selecting previously unselected package grub-efi-amd64-bin.
Preparing to unpack .../1-grub-efi-amd64-bin_2.02-2ubuntu8.15_amd64.deb ...
Unpacking grub-efi-amd64-bin (2.02-2ubuntu8.15) ...
Selecting previously unselected package grub2-common.
Preparing to unpack .../2-grub2-common_2.02-2ubuntu8.15_amd64.deb ...
Unpacking grub2-common (2.02-2ubuntu8.15) ...
Selecting previously unselected package grub-efi-amd64.
Preparing to unpack .../3-grub-efi-amd64_2.02-2ubuntu8.15_amd64.deb ...
Unpacking grub-efi-amd64 (2.02-2ubuntu8.15) ...
Selecting previously unselected package grub-efi-amd64-signed.
Preparing to unpack .../4-grub-efi-amd64-signed_1.93.16+2.02-2ubuntu8.15_amd64.deb ...
Unpacking grub-efi-amd64-signed (1.93.16+2.02-2ubuntu8.15) ...
Selecting previously unselected package os-prober.
Preparing to unpack .../5-os-prober_1.74ubuntu1_amd64.deb ...
Unpacking os-prober (1.74ubuntu1) ...
Selecting previously unselected package shim-signed.
Preparing to unpack .../6-shim-signed_1.37~18.04.3+15+1533136590.3beb971-0ubuntu1_amd64.deb ...
Unpacking shim-signed (1.37~18.04.3+15+1533136590.3beb971-0ubuntu1) ...
Setting up grub-common (2.02-2ubuntu8.15) ...
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request.
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: is-active
Running in chroot, ignoring request: start
Setting up grub-efi-amd64-bin (2.02-2ubuntu8.15) ...
Setting up grub2-common (2.02-2ubuntu8.15) ...
Setting up os-prober (1.74ubuntu1) ...
Setting up grub-efi-amd64 (2.02-2ubuntu8.15) ...

Creating config file /etc/default/grub with new version
Installing for x86_64-efi platform.
Installation finished. No error reported.
Setting up grub-efi-amd64-signed (1.93.16+2.02-2ubuntu8.15) ...
Installing for x86_64-efi platform.
Installation finished. No error reported.
Setting up shim-signed (1.37~18.04.3+15+1533136590.3beb971-0ubuntu1) ...
Installing for x86_64-efi platform.
Installation finished. No error reported.
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for ureadahead (0.100.0-21) ...
Processing triggers for install-info (6.5.0.dfsg.1-2) ...
Processing triggers for systemd (237-3ubuntu10.39) ...
Running in chroot, ignoring request: daemon-reload
ubuntu@ubuntu:~$ 

Rapport final :
Boot successfully repaired.

Please write on a paper the following URL:
https://paste.ubuntu.com/p/CqtyZxrvDb/

Je colle ci-dessous le contenu de ce rapport :

Boot Info Script 71f6c5c + Boot-Repair extra info      [Boot-Info 16mar2020]


============================= Boot Info Summary: ===============================

 => Grub2 (v1.99-2.00) is installed in the MBR of /dev/sda and looks at sector 
    73789248 of the same hard drive for core.img, but core.img can not be 
    found at this location.
 => libparted MBR boot code is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sda2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows 8/2012: FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/ubuntu/grub.cfg /efi/BOOT/bkpbootx64.efi 
                       /efi/BOOT/bootx64.efi /efi/BOOT/fbx64.efi 
                       /efi/BOOT/grubx64.efi /efi/ubuntu/fwupx64.efi 
                       /efi/ubuntu/grubx64.efi /efi/ubuntu/mmx64.efi 
                       /efi/ubuntu/shimx64.efi /efi/ubuntu/grub.cfg 
                       /efi/Microsoft/Boot/bootmgfw.efi 
                       /efi/Microsoft/Boot/bootmgr.efi 
                       /efi/Microsoft/Boot/memtest.efi

sda3: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 

sda4: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /Windows/System32/winload.exe

sda5: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 18.04.4 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab

sda6: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

sda7: __________________________________________________________________________

    File system:       swap
    Boot sector type:  -
    Boot sector info: 

sdb1: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

============================ Drive/Partition Info: =============================

Drive: sda _____________________________________________________________________
Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1    84,559,679    84,559,679  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048       923,647       921,600 Windows Recovery Environment (Windows)
/dev/sda2               923,648     1,126,399       202,752 EFI System partition
/dev/sda3             1,126,400     1,159,167        32,768 EFI System partition
/dev/sda4             1,159,168    50,636,799    49,477,632 Data partition (Windows/Linux)
/dev/sda5            50,636,800    78,698,495    28,061,696 Data partition (Linux)
/dev/sda6            78,698,496    82,606,079     3,907,584 Data partition (Linux)
/dev/sda7            82,606,080    84,557,823     1,951,744 Swap partition (Linux)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1               2,048    67,108,863    67,106,816  83 Linux


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/sda1        72E8CBBEE8CB7EBB                       ntfs       Récupération
/dev/sda2        C4D1-8AAE                              vfat       
/dev/sda3                                                          
/dev/sda4        B606ECD606EC989F                       ntfs       
/dev/sda5        7867687a-23dd-4ba9-a158-f3781c9d569e   ext4       
/dev/sda6        5c83c06b-be67-4270-80bb-3ee816fc5788   ext4       
/dev/sda7        9eb0b62d-a932-4de1-a3f5-be40200e5123   swap       
/dev/sdb1        6c14aa5c-a67b-4211-afd2-42ff350e60b0   ext4       images_win10_EFI
/dev/sr0         2020-02-20-07-51-12-00                 iso9660    Ubuntu 20.04 LTS amd64

========================= "ls -l /dev/disk/by-id" output: ======================

total 0
lrwxrwxrwx 1 root root  9 Mar 21  2020 ata-VBOX_CD-ROM_VB1-1a2b3c4d -> ../../sr0
lrwxrwxrwx 1 root root  9 Mar 21 12:49 ata-VBOX_HARDDISK_VB2db79605-645acf7a -> ../../sda
lrwxrwxrwx 1 root root 10 Mar 21 13:10 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Mar 21 12:49 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Mar 21 12:49 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Mar 21 13:10 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Mar 21 12:49 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Mar 21 12:49 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part6 -> ../../sda6
lrwxrwxrwx 1 root root 10 Mar 21 12:49 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part7 -> ../../sda7
lrwxrwxrwx 1 root root  9 Mar 21 12:49 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f -> ../../sdb
lrwxrwxrwx 1 root root 10 Mar 21 12:49 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f-part1 -> ../../sdb1

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/fuse        /run/user/999/doc        fuse       (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/loop0       /rofs                    squashfs   (ro,noatime)
/dev/sr0         /cdrom                   iso9660    (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)


========================== sda2/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 7867687a-23dd-4ba9-a158-f3781c9d569e root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

========================== sda2/efi/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 7867687a-23dd-4ba9-a158-f3781c9d569e root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=========================== sda5/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
else
  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=C
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=10
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=10
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 10 ; then
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30,0; then
  clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=1
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-7867687a-23dd-4ba9-a158-f3781c9d569e' {
	recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
	else
	  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
	fi
        linux	/boot/vmlinuz-4.15.0-91-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-4.15.0-91-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
	menuentry 'Ubuntu, with Linux 4.15.0-91-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-91-generic-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-91-generic ...'
	        linux	/boot/vmlinuz-4.15.0-91-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-91-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-91-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-91-generic-recovery-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-91-generic ...'
	        linux	/boot/vmlinuz-4.15.0-91-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-91-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-88-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-88-generic-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-88-generic ...'
	        linux	/boot/vmlinuz-4.15.0-88-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-88-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-88-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-88-generic-recovery-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-88-generic ...'
	        linux	/boot/vmlinuz-4.15.0-88-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-88-generic
	}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/25_custom ###

menuentry "Windows UEFI bootmgfw.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}

menuentry "EFI/BOOT/bkpbootx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/bkpbootx64.efi
}

menuentry "EFI/BOOT/fbx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/fbx64.efi
}

menuentry "EFI/ubuntu/fwupx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/fwupx64.efi
}

menuentry "EFI/ubuntu/mmx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/mmx64.efi
}
### END /etc/grub.d/25_custom ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-C4D1-8AAE' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  C4D1-8AAE
	else
	  search --no-floppy --fs-uuid --set=root C4D1-8AAE
	fi
	chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'System setup' $menuentry_id_option 'uefi-firmware' {
	fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sda5/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda5 during installation
UUID=7867687a-23dd-4ba9-a158-f3781c9d569e /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda2 during installation
#UUID=C4D1-8AAE  /boot/efi       vfat    umask=0077      0       1
# /home was on /dev/sda6 during installation
UUID=5c83c06b-be67-4270-80bb-3ee816fc5788 /home           ext4    defaults        0       2
# swap was on /dev/sda7 during installation
UUID=9eb0b62d-a932-4de1-a3f5-be40200e5123 none            swap    sw              0       0
UUID=C4D1-8AAE	/boot/efi	vfat	defaults	0	1
--------------------------------------------------------------------------------

=================== sda5: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

  28.272209167 = 30.357053440   boot/grub/grub.cfg                             1
  36.688472748 = 39.393947648   boot/vmlinuz-4.15.0-88-generic                 2
  37.141586304 = 39.880474624   boot/vmlinuz-4.15.0-91-generic                 2
  37.141586304 = 39.880474624   vmlinuz                                        2
  36.688472748 = 39.393947648   vmlinuz.old                                    2
  27.854072571 = 29.908082688   boot/initrd.img-4.15.0-88-generic              5
  27.637401581 = 29.675433984   boot/initrd.img-4.15.0-91-generic              5
  27.637401581 = 29.675433984   initrd.img                                     5
  27.854072571 = 29.908082688   initrd.img.old                                 5

=============================== StdErr Messages: ===============================

File descriptor 9 (/proc/15769/mountinfo) leaked on lvs invocation. Parent PID 37334: bash

ADDITIONAL INFORMATION :
=================== log of boot-repair 20200321_1248 ===================
boot-repair version : 4ppa74
boot-sav version : 4ppa74
boot-sav-extra version : 4ppa74
glade2script version : 3.2.4~ppa6
Warning: Unable to open /dev/sr0 read-write (Read-only file system).  /dev/sr0 has been opened read-only.
boot-repair is executed in live-session (Ubuntu Focal Fossa (development branch), focal, Ubuntu, x86_64)
CPU op-mode(s):                  32-bit, 64-bit
Address sizes:                   48 bits physical, 48 bits virtual
BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed quiet splash ---

=================== os-prober:
/dev/sda2@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
/dev/sda5:Ubuntu 18.04.4 LTS (18.04):Ubuntu:linux

=================== blkid:
/dev/sda1: LABEL="RM-CM-)cupM-CM-)ration" UUID="72E8CBBEE8CB7EBB" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="07380664-6dd4-4925-aeac-a435b34ad9f5"
/dev/sda2: UUID="C4D1-8AAE" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="1ab7abb3-31e4-4289-9a3a-587ac6546242"
/dev/sda4: UUID="B606ECD606EC989F" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="63728c63-f8c6-4f3b-8882-3688c4f80734"
/dev/sda5: UUID="7867687a-23dd-4ba9-a158-f3781c9d569e" TYPE="ext4" PARTUUID="8e8ca714-97e7-45a9-afd0-d9ee0c9499c1"
/dev/sda6: UUID="5c83c06b-be67-4270-80bb-3ee816fc5788" TYPE="ext4" PARTUUID="887c27c8-878d-4241-9ee8-e23d01b4b371"
/dev/sdb1: LABEL="images_win10_EFI" UUID="6c14aa5c-a67b-4211-afd2-42ff350e60b0" TYPE="ext4" PARTUUID="52caac94-01"
/dev/sr0: UUID="2020-02-20-07-51-12-00" LABEL="Ubuntu 20.04 LTS amd64" TYPE="iso9660" PTUUID="72b2b8e0" PTTYPE="dos"
/dev/loop0: TYPE="squashfs"
/dev/sda7: UUID="9eb0b62d-a932-4de1-a3f5-be40200e5123" TYPE="swap" PARTUUID="11dedfb2-818f-475f-90cd-2da94e38357f"
/dev/sda3: PARTLABEL="Microsoft reserved partition" PARTUUID="c21c3b27-c875-4428-a0d8-0c431338197b"


1 disks with OS, 2 OS : 1 Linux, 0 MacOS, 1 Windows, 0 unknown type OS.

Windows not detected by os-prober on sda4.
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda2/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/bkpbootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/grubx64.efi
Presence of bkp file detected: /mnt/boot-sav/sda2/EFI/BOOT/bkpbootx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 21 12:25 grub.d
drwxr-xr-x  2 root root    4096 Mar 21 12:21 grub.d.bak
total 80
-rwxr-xr-x 1 root root 10046 Mar 11 20:57 00_header
-rwxr-xr-x 1 root root  6258 Mar 11 20:57 05_debian_theme
-rwxr-xr-x 1 root root 12693 Mar 11 20:57 10_linux
-rwxr-xr-x 1 root root 11298 Mar 11 20:57 20_linux_xen
-rwxr-xr-x 1 root root   706 Mar 21 12:25 25_custom
-rwxr-xr-x 1 root root 12059 Mar 11 20:57 30_os-prober
-rwxr-xr-x 1 root root  1418 Mar 11 20:57 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Mar 11 20:57 40_custom
-rwxr-xr-x 1 root root   216 Mar 11 20:57 41_custom
-rw-r--r-- 1 root root   483 Mar 11 20:57 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
ls /sys/firmware/efi/vars : new_var,del_var,boot-args-7c436110-ab2a-4bbb-a880-fe41995c9f82,Test1-e660597e-b94d-4209-9c80-1805b5d19b69,Test0-e660597e-b94d-4209-9c80-1805b5d19b69,RTC-378d7b65-8da9-4773-b6e4-a47826a833e1,PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c,OsIndicationsSupported-8be4df61-93ca-11d2-aa0d-00e098032b8c,MemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa,MTC-eb704011-1402-11d3-8e77-00a0c969723b,LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c,FirmwareFeaturesMask-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,FirmwareFeatures-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOptionSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0003-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0002-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c,BackgroundClear-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,
Please report this message to boot.repair@gmail.com

=================== efibootmgr -v
BootCurrent: 0000
BootOrder: 0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot maybe enabled. (maybe sec-boot, Please report this message to boot.repair@gmail.com)


=================== PARTITIONS & DISKS:
sda1	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda1.
sda2	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	is-correct-EFI,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda2.
sda4	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	haswinload,	no-recov-nor-hid,	bootmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda4.
sda5	: sda,	not-sepboot,	grubenv-ok	grub2,	signed grub-efi ,	update-grub,	64,	with-boot,	is-os,	not--efi--part,	fstab-without-boot,	fstab-has-goodEFI,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	apt-get,	grub-install,	with--usr,	fstab-without-usr,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda5.
sda6	: sda,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda6.
sdb1	: sdb,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sdb1.

sda	: GPT,	no-BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes
sdb	: not-GPT,	BIOSboot-not-needed,	has-no-EFIpart, 	not-usb,	not-mmc, no-os,	2048 sectors * 512 bytes


=================== parted -lm:

BYT;
/dev/sda:43.3GB:scsi:512:512:gpt:ATA VBOX HARDDISK:;
1:1049kB:473MB:472MB:ntfs:Basic data partition:diag;
2:473MB:577MB:104MB:fat32:EFI system partition:boot, esp;
3:577MB:593MB:16.8MB::Microsoft reserved partition:boot, esp;
4:593MB:25.9GB:25.3GB:ntfs:Basic data partition:msftdata;
5:25.9GB:40.3GB:14.4GB:ext4::;
6:40.3GB:42.3GB:2001MB:ext4::;
7:42.3GB:43.3GB:999MB:linux-swap(v1)::swap;

BYT;
/dev/sdb:34.4GB:scsi:512:512:msdos:ATA VBOX HARDDISK:;
1:1049kB:34.4GB:34.4GB:ext4::;

BYT;
/dev/sr0:2743MB:scsi:2048:2048:mac:VBOX CD-ROM:;
1:2048B:6143B:4096B::Apple:;
2:2299MB:2303MB:4063kB::EFI:;

=================== lsblk:
KNAME TYPE FSTYPE    SIZE LABEL
loop0 loop squashfs    2G
sda   disk          40.3G
sda1  part ntfs      450M Récupération
sda2  part vfat       99M
sda3  part            16M
sda4  part ntfs     23.6G
sda5  part ext4     13.4G
sda6  part ext4      1.9G
sda7  part swap      953M
sdb   disk            32G
sdb1  part ext4       32G images_win10_EFI
sr0   rom  iso9660   2.6G Ubuntu 20.04 LTS amd64

KNAME ROTA RO RM STATE   MOUNTPOINT
loop0    1  1  0         /rofs
sda      1  0  0 running
sda1     1  0  0         /mnt/boot-sav/sda1
sda2     1  0  0         /mnt/boot-sav/sda2
sda3     1  0  0
sda4     1  0  0         /mnt/boot-sav/sda4
sda5     1  0  0         /mnt/boot-sav/sda5
sda6     1  0  0         /mnt/boot-sav/sda6
sda7     1  0  0         [SWAP]
sdb      1  0  0 running
sdb1     1  0  0         /mnt/boot-sav/sdb1
sr0      1  0  1 running /cdrom


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=969560k,nr_inodes=242390,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,relatime,size=203424k,mode=755)
/dev/sr0 on /cdrom type iso9660 (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)
/dev/loop0 on /rofs type squashfs (ro,noatime)
/cow on / type overlay (rw,relatime,lowerdir=/filesystem.squashfs,upperdir=/cow/upper,workdir=/cow/work)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
none on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=27,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=17754)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime)
tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=203420k,mode=700,uid=999,gid=999)
gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/fuse on /run/user/999/doc type fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/sda1 on /mnt/boot-sav/sda1 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda2 on /mnt/boot-sav/sda2 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda4 on /mnt/boot-sav/sda4 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda5 on /mnt/boot-sav/sda5 type ext4 (rw,relatime)
/dev/sda6 on /mnt/boot-sav/sda6 type ext4 (rw,relatime)
/dev/sdb1 on /mnt/boot-sav/sdb1 type ext4 (rw,relatime)


=================== ls:
/sys/block/sda (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sda1 sda2 sda3 sda4 sda5 sda6 sda7 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/sys/block/sr0 (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro size slaves stat subsystem trace uevent
/dev (filtered):  autofs block bsg btrfs-control bus cdrom char console core cpu_dma_latency cuse disk dri dvd ecryptfs fb0 fd full fuse hidraw0 hpet hugepages hwrng i2c-0 initctl input kmsg lightnvm log mapper mcelog mem mqueue net null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda3 sda4 sda5 sda6 sda7 sdb sdb1 sg0 sg1 sg2 shm snapshot snd sr0 stderr stdin stdout udmabuf uhid uinput urandom userio vboxguest vboxuser vfio vga_arbiter vhci vhost-net vhost-vsock zero zfs
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff 0f 0e 00 00 00 00 00  |................|
00000030  00 96 00 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  bb 7e cb e8 be cb e8 72  |.........~.....r|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda2
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 02 0e 1a  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 18 0e 00  |........?.......|
00000020  00 18 03 00 f9 02 00 00  00 00 00 00 02 00 00 00  |................|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 01 29 ae 8a d1 c4 4e  4f 20 4e 41 4d 45 20 20  |..)....NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  88 56 40 88 4e 02 8a 56  |{......|.V@.N..V|
00000070  40 b4 41 bb aa 55 cd 13  72 10 81 fb 55 aa 75 0a  |@.A..U..r...U.u.|
00000080  f6 c1 01 74 05 fe 46 02  eb 2d 8a 56 40 b4 08 cd  |...t..F..-.V@...|
00000090  13 73 05 b9 ff ff 8a f1  66 0f b6 c6 40 66 0f b6  |.s......f...@f..|
000000a0  d1 80 e2 3f f7 e2 86 cd  c0 ed 06 41 66 0f b7 c9  |...?.......Af...|
000000b0  66 f7 e1 66 89 46 f8 83  7e 16 00 75 39 83 7e 2a  |f..f.F..~..u9.~*|
000000c0  00 77 33 66 8b 46 1c 66  83 c0 0c bb 00 80 b9 01  |.w3f.F.f........|
000000d0  00 e8 2c 00 e9 a8 03 a1  f8 7d 80 c4 7c 8b f0 ac  |..,......}..|...|
000000e0  84 c0 74 17 3c ff 74 09  b4 0e bb 07 00 cd 10 eb  |..t.<.t.........|
000000f0  ee a1 fa 7d eb e4 a1 7d  80 eb df 98 cd 16 cd 19  |...}...}........|
00000100  66 60 80 7e 02 00 0f 84  20 00 66 6a 00 66 50 06  |f`.~.... .fj.fP.|
00000110  53 66 68 10 00 01 00 b4  42 8a 56 40 8b f4 cd 13  |Sfh.....B.V@....|
00000120  66 58 66 58 66 58 66 58  eb 33 66 3b 46 f8 72 03  |fXfXfXfX.3f;F.r.|
00000130  f9 eb 2a 66 33 d2 66 0f  b7 4e 18 66 f7 f1 fe c2  |..*f3.f..N.f....|
00000140  8a ca 66 8b d0 66 c1 ea  10 f7 76 1a 86 d6 8a 56  |..f..f....v....V|
00000150  40 8a e8 c0 e4 06 0a cc  b8 01 02 cd 13 66 61 0f  |@............fa.|
00000160  82 74 ff 81 c3 00 02 66  40 49 75 94 c3 42 4f 4f  |.t.....f@Iu..BOO|
00000170  54 4d 47 52 20 20 20 20  00 00 00 00 00 00 00 00  |TMGR    ........|
00000180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  00 00 00 00 00 00 00 00  00 00 00 00 0d 0a 45 72  |..............Er|
000001b0  72 2e 20 64 69 73 71 75  65 ff 0d 0a 50 72 65 73  |r. disque...Pres|
000001c0  73 65 7a 20 75 6e 65 20  74 6f 75 63 68 65 20 70  |sez une touche p|
000001d0  6f 75 72 20 72 65 64 82  6d 61 72 72 65 72 0d 0a  |our red.marrer..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 00 00  ac 01 ba 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda4
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 b0 11 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff f7 f2 02 00 00 00 00  |................|
00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  9f 98 ec 06 d6 ec 06 b6  |................|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== df -Th:

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  947M     0  947M   0% /dev
tmpfs          tmpfs     199M  1.4M  198M   1% /run
/dev/sr0       iso9660   2.6G  2.6G     0 100% /cdrom
/dev/loop0     squashfs  2.0G  2.0G     0 100% /rofs
/cow           overlay   994M  326M  668M  33% /
tmpfs          tmpfs     994M   16M  979M   2% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     994M     0  994M   0% /sys/fs/cgroup
tmpfs          tmpfs     994M  604K  993M   1% /tmp
tmpfs          tmpfs     199M   52K  199M   1% /run/user/999
/dev/sda1      fuseblk   450M  389M   62M  87% /mnt/boot-sav/sda1
/dev/sda2      vfat       95M   65M   31M  69% /mnt/boot-sav/sda2
/dev/sda4      fuseblk    24G   17G  7.3G  70% /mnt/boot-sav/sda4
/dev/sda5      ext4       14G  6.1G  6.5G  49% /mnt/boot-sav/sda5
/dev/sda6      ext4      1.9G   64M  1.7G   4% /mnt/boot-sav/sda6
/dev/sdb1      ext4       32G   16G   15G  53% /mnt/boot-sav/sdb1

=================== fdisk -l:
Disk /dev/loop0: 1.97 GiB, 2090962944 bytes, 4083912 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 2530EA09-698D-4322-B791-29F4A072F62E

Device        Start      End  Sectors  Size Type
/dev/sda1      2048   923647   921600  450M Windows recovery environment
/dev/sda2    923648  1126399   202752   99M EFI System
/dev/sda3   1126400  1159167    32768   16M EFI System
/dev/sda4   1159168 50636799 49477632 23.6G Microsoft basic data
/dev/sda5  50636800 78698495 28061696 13.4G Linux filesystem
/dev/sda6  78698496 82606079  3907584  1.9G Linux filesystem
/dev/sda7  82606080 84557823  1951744  953M Linux swap


Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x52caac94

Device     Boot Start      End  Sectors Size Id Type
/dev/sdb1        2048 67108863 67106816  32G 83 Linux




=================== Default settings of Boot Repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda2/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file  restore-efi-backups


=================== Final advice in case of suggested repair
Please do not forget to make your BIOS boot on sda2/efi/.../grub*.efi file!

If your computer reboots directly into Windows, try to change the boot order in your BIOS.
If your BIOS does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI\...\grub*.efi


=================== User settings
The settings chosen by the user will purge (in order to unsign) and reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda2/boot/efi,
Additional repair will be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file  restore-efi-backups


rm /mnt/boot-sav/sda2/efi/Boot/bootx64.efi
Quantity of real Windows: 1
Mount sda2 on /mnt/boot-sav/sda5/boot/efi
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi
chroot /mnt/boot-sav/sda5 apt-get -y update
Purge the GRUB of sda5
grub-efi-amd64-signed available


0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
DEBCHECK debOK, grub-efi-amd64-signed
DEBCHECK debOK
shim-signed available
Please type: sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -ansudo chroot "/mnt/boot-sav/sda5" dpkg --configure -ansudo chroot "/mnt/boot-sav/sda5" apt-get install -fynsudo chroot "/mnt/boot-sav/sda5" apt-get purge -y grub*-common grub-common:i386 shim-signed
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 21 13:04 grub.d
drwxr-xr-x  2 root root    4096 Mar 21 12:21 grub.d.bak
total 4
-rwxr-xr-x 1 root root 706 Mar 21 12:25 25_custom


/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
shim-signed available
linux-headers-generic available
linux-signed-generic available
Then type: sudo chroot "/mnt/boot-sav/sda5" apt-get install -y grub-efi-amd64-signed shim-signed linux-headers-generic linux-signed-generic
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 21 13:06 grub.d
drwxr-xr-x  2 root root    4096 Mar 21 12:21 grub.d.bak
total 76
-rwxr-xr-x 1 root root 10046 Mar 11 20:57 00_header
-rwxr-xr-x 1 root root  6258 Mar 11 20:57 05_debian_theme
-rwxr-xr-x 1 root root 12693 Mar 11 20:57 10_linux
-rwxr-xr-x 1 root root 11298 Mar 11 20:57 20_linux_xen
-rwxr-xr-x 1 root root 12059 Mar 11 20:57 30_os-prober
-rwxr-xr-x 1 root root  1418 Mar 11 20:57 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Mar 11 20:57 40_custom
-rwxr-xr-x 1 root root   216 Mar 11 20:57 41_custom
-rw-r--r-- 1 root root   483 Mar 11 20:57 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
Unhide GRUB boot menu in sda5/etc/default/grub
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 21 13:06 grub.d
drwxr-xr-x  2 root root    4096 Mar 21 12:21 grub.d.bak
total 76
-rwxr-xr-x 1 root root 10046 Mar 11 20:57 00_header
-rwxr-xr-x 1 root root  6258 Mar 11 20:57 05_debian_theme
-rwxr-xr-x 1 root root 12693 Mar 11 20:57 10_linux
-rwxr-xr-x 1 root root 11298 Mar 11 20:57 20_linux_xen
-rwxr-xr-x 1 root root 12059 Mar 11 20:57 30_os-prober
-rwxr-xr-x 1 root root  1418 Mar 11 20:57 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Mar 11 20:57 40_custom
-rwxr-xr-x 1 root root   216 Mar 11 20:57 41_custom
-rw-r--r-- 1 root root   483 Mar 11 20:57 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
lspci: Unable to load libkmod resources: error -12

*******lspci -nnk | grep -iA3 vga
00:02.0 VGA compatible controller [0300]: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef]
Kernel driver in use: vboxvideo
00:03.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit Ethernet Controller [8086:100e] (rev 02)
Subsystem: Intel Corporation PRO/1000 MT Desktop Adapter [8086:001e]
*******

grub-install --version
grub-install (GRUB) 2.02-2ubuntu8.15,grub-install (GRUB) 2.

chroot /mnt/boot-sav/sda5 efibootmgr -v
BootCurrent: 0000
BootOrder: 0004,0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
Boot0004* ubuntu	HD(2,GPT,1ab7abb3-31e4-4289-9a3a-587ac6546242,0xe1800,0x31800)/File(EFIubuntushimx64.efi)

chroot /mnt/boot-sav/sda5 uname -r
Kernel: 5.4.0-14-generic

Reinstall the grub-efi-amd64-signed shim-signed linux-headers-generic linux-signed-generic of sda5
Installing for x86_64-efi platform.
Installation finished. No error reported.
grub-install --efi-directory=/boot/efi --target=x86_64-efi --uefi-secure-boot : exit code of grub-install :0
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi
df /dev/sda2
mv /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bkpbootx64.efi
cp /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/shimx64.efi /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi /BOOT/bkpbootx64.efi
Add /mnt/boot-sav/sda5/boot/efi efi entries in /mnt/boot-sav/sda5/etc/grub.d/25_custom
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/BOOT/bkpbootx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/BOOT/fbx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/fwupx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/mmx64.efi
sda2/bootmgfw.efi already added
Installing for x86_64-efi platform.
Installation finished. No error reported.
grub-install --efi-directory=/boot/efi --target=x86_64-efi --uefi-secure-boot : exit code of grub-install :0

chroot /mnt/boot-sav/sda5 efibootmgr -v
BootCurrent: 0000
BootOrder: 0004,0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
Boot0004* ubuntu	HD(2,GPT,1ab7abb3-31e4-4289-9a3a-587ac6546242,0xe1800,0x31800)/File(EFIubuntushimx64.efi)

chroot /mnt/boot-sav/sda5 update-grub
Sourcing file `/etc/default/grub'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.15.0-91-generic
Found initrd image: /boot/initrd.img-4.15.0-91-generic
Found linux image: /boot/vmlinuz-4.15.0-88-generic
Found initrd image: /boot/initrd.img-4.15.0-88-generic
Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi
Adding boot menu entry for EFI firmware configuration
Unhide GRUB boot menu in sda5/boot/grub/grub.cfg

Boot successfully repaired.

You can now reboot your computer.
Please do not forget to make your BIOS boot on sda2/EFI/ubuntu/shimx64.efi file!

If your computer reboots directly into Windows, try to change the boot order in your BIOS.
If your BIOS does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI\ubuntu\shimx64.efi

3) réparation avancée de Ubuntu 20.04 depuis une session live de Ubuntu 18.04 :

ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -a
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get install -fy
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 11 not upgraded.
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get purge -y grub*-common grub-common:i386 shim-signed
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'grub-common' for glob 'grub*-common'
Note, selecting 'grub2-common' for glob 'grub*-common'
E: Unable to locate package grub-common:i386
ubuntu@ubuntu:~$ 

La purge de Grub ne se fait pas

4) réparation avancée de Ubuntu 20.04 depuis une session live de Ubuntu 20.04 :

ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -a
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -a
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get install -fy
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 11 not upgraded.
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get purge -y grub*-common grub-common:i386 shim-signed
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'grub-common' for glob 'grub*-common'
Note, selecting 'grub2-common' for glob 'grub*-common'
E: Unable to locate package grub-common:i386
ubuntu@ubuntu:~$ 

La purge de Grub ne se fait pas

Edit : j'ai donné le lien vers la présente discussion dans ce post du fil " [Réparateur de démarrage] Développement du logiciel Boot-Repair"

Dernière modification par malbo (Le 23/03/2020, à 12:11)

Hors ligne

#2 Le 23/03/2020, à 03:51

YannUbuntu

Re : [Résolu] anomalie de Boot-repair version 4ppa74

Peux-tu retester avec 4ppa75  stp ?    (grub-common:i386 ne devrait plus apparaitre dans la ligne de commande, et j'espere que ca suffira à resoudre le probleme )


à consulter/améliorer: Guide du Débutant, Logiciels, Ecole, Travail, Maison

Hors ligne

#3 Le 23/03/2020, à 10:09

malbo

Re : [Résolu] anomalie de Boot-repair version 4ppa74

Bonjour,
Effectivement, tu as résolu le problème dans la version 4ppa75 de Boot-repair. J'ai refait le dernier essai - réparation avancée de Ubuntu 20.04 depuis une session live de Ubuntu 20.04 (toujours avec l'option "purger Grub avant de la réinstaller") - et cette fois la purge de Grub est réalisée et la réparation va bien au bout comme on peut voir ci-dessous :

ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -a
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -a
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get install -fy
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 99 not upgraded.
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get purge -y grub*-common shim-signed
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'grub-common' for glob 'grub*-common'
Note, selecting 'grub2-common' for glob 'grub*-common'
The following package was automatically installed and is no longer required:
  shim
Use 'sudo apt autoremove' to remove it.
The following packages will be REMOVED:
  grub-common* grub-efi-amd64-bin* grub-efi-amd64-signed*
  grub-gfxpayload-lists* grub-pc* grub-pc-bin* grub2-common* os-prober*
  shim-signed*
0 upgraded, 0 newly installed, 9 to remove and 99 not upgraded.
After this operation, 32.2 MB disk space will be freed.
(Reading database ... 202068 files and directories currently installed.)
Removing os-prober (1.74ubuntu2) ...
dpkg: warning: while removing os-prober, directory '/var/lib/os-prober' not empty so not removed
Removing shim-signed (1.41+15+1552672080.a4a1fbe-0ubuntu1) ...
Removing grub-efi-amd64-signed (1.137+2.04-1ubuntu22) ...
Removing grub-efi-amd64-bin (2.04-1ubuntu22) ...
Removing grub-pc (2.04-1ubuntu22) ...
Removing grub-pc-bin (2.04-1ubuntu22) ...
Removing grub2-common (2.04-1ubuntu22) ...
Removing grub-common (2.04-1ubuntu22) ...
Running in chroot, ignoring request.
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: is-active
Running in chroot, ignoring request: stop
Running in chroot, ignoring request: stop
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: daemon-reload
Removing grub-gfxpayload-lists (0.7) ...
Processing triggers for install-info (6.7.0.dfsg.2-5) ...
Processing triggers for man-db (2.9.1-1) ...
(Reading database ... 201289 files and directories currently installed.)
Purging configuration files for grub2-common (2.04-1ubuntu22) ...
Purging configuration files for shim-signed (1.41+15+1552672080.a4a1fbe-0ubuntu1) ...
Purging configuration files for grub-pc (2.04-1ubuntu22) ...
Purging configuration files for grub-common (2.04-1ubuntu22) ...
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: daemon-reload
Processing triggers for ureadahead (0.100.0-21) ...
Processing triggers for systemd (244.3-1ubuntu1) ...
Running in chroot, ignoring request: daemon-reload
ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get install -y grub-efi-amd64-signed shim-signed linux-headers-generic linux-signed-generic
Reading package lists... Done
Building dependency tree       
Reading state information... Done
linux-headers-generic is already the newest version (5.4.0.18.22).
linux-signed-generic is already the newest version (4.15.0.91.83).
The following additional packages will be installed:
  grub-common grub-efi-amd64 grub-efi-amd64-bin grub2-common os-prober
Suggested packages:
  multiboot-doc grub-emu xorriso desktop-base
The following NEW packages will be installed:
  grub-common grub-efi-amd64 grub-efi-amd64-bin grub-efi-amd64-signed
  grub2-common os-prober shim-signed
0 upgraded, 7 newly installed, 0 to remove and 99 not upgraded.
Need to get 3536 kB/4004 kB of archives.
After this operation, 28.6 MB of additional disk space will be used.
Get:1 http://fr.archive.ubuntu.com/ubuntu focal/main amd64 grub-common amd64 2.04-1ubuntu22 [1847 kB]
Get:2 http://fr.archive.ubuntu.com/ubuntu focal/main amd64 grub-efi-amd64-bin amd64 2.04-1ubuntu22 [701 kB]
Get:3 http://fr.archive.ubuntu.com/ubuntu focal/main amd64 grub2-common amd64 2.04-1ubuntu22 [589 kB]
Get:4 http://fr.archive.ubuntu.com/ubuntu focal/main amd64 grub-efi-amd64 amd64 2.04-1ubuntu22 [30.7 kB]
Get:5 http://fr.archive.ubuntu.com/ubuntu focal/main amd64 os-prober amd64 1.74ubuntu2 [20.1 kB]
Get:6 http://fr.archive.ubuntu.com/ubuntu focal/main amd64 shim-signed amd64 1.41+15+1552672080.a4a1fbe-0ubuntu1 [349 kB]
Fetched 3536 kB in 5s (706 kB/s)    
Preconfiguring packages ...
Selecting previously unselected package grub-common.
(Reading database ... 201271 files and directories currently installed.)
Preparing to unpack .../0-grub-common_2.04-1ubuntu22_amd64.deb ...
Unpacking grub-common (2.04-1ubuntu22) ...
Selecting previously unselected package grub-efi-amd64-bin.
Preparing to unpack .../1-grub-efi-amd64-bin_2.04-1ubuntu22_amd64.deb ...
Unpacking grub-efi-amd64-bin (2.04-1ubuntu22) ...
Selecting previously unselected package grub2-common.
Preparing to unpack .../2-grub2-common_2.04-1ubuntu22_amd64.deb ...
Unpacking grub2-common (2.04-1ubuntu22) ...
Selecting previously unselected package grub-efi-amd64.
Preparing to unpack .../3-grub-efi-amd64_2.04-1ubuntu22_amd64.deb ...
Unpacking grub-efi-amd64 (2.04-1ubuntu22) ...
Selecting previously unselected package grub-efi-amd64-signed.
Preparing to unpack .../4-grub-efi-amd64-signed_1.137+2.04-1ubuntu22_amd64.deb ...
Unpacking grub-efi-amd64-signed (1.137+2.04-1ubuntu22) ...
Selecting previously unselected package os-prober.
Preparing to unpack .../5-os-prober_1.74ubuntu2_amd64.deb ...
Unpacking os-prober (1.74ubuntu2) ...
Selecting previously unselected package shim-signed.
Preparing to unpack .../6-shim-signed_1.41+15+1552672080.a4a1fbe-0ubuntu1_amd64.deb ...
Unpacking shim-signed (1.41+15+1552672080.a4a1fbe-0ubuntu1) ...
Setting up grub-common (2.04-1ubuntu22) ...
Created symlink /etc/systemd/system/multi-user.target.wants/grub-initrd-fallback.service → /lib/systemd/system/grub-initrd-fallback.service.
Created symlink /etc/systemd/system/rescue.target.wants/grub-initrd-fallback.service → /lib/systemd/system/grub-initrd-fallback.service.
Created symlink /etc/systemd/system/emergency.target.wants/grub-initrd-fallback.service → /lib/systemd/system/grub-initrd-fallback.service.
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: is-active
Running in chroot, ignoring request: start
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request.
Running in chroot, ignoring request: daemon-reload
Running in chroot, ignoring request: is-active
Running in chroot, ignoring request: start
Setting up os-prober (1.74ubuntu2) ...
Setting up grub-efi-amd64-bin (2.04-1ubuntu22) ...
Setting up grub2-common (2.04-1ubuntu22) ...
Setting up grub-efi-amd64 (2.04-1ubuntu22) ...

Creating config file /etc/default/grub with new version
Installing for x86_64-efi platform.
Installation finished. No error reported.
Setting up grub-efi-amd64-signed (1.137+2.04-1ubuntu22) ...
Installing for x86_64-efi platform.
Installation finished. No error reported.
Setting up shim-signed (1.41+15+1552672080.a4a1fbe-0ubuntu1) ...
Installing for x86_64-efi platform.
Installation finished. No error reported.
Processing triggers for install-info (6.7.0.dfsg.2-5) ...
Processing triggers for systemd (244.3-1ubuntu1) ...
Running in chroot, ignoring request: daemon-reload
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for ureadahead (0.100.0-21) ...
ubuntu@ubuntu:~$ 

Boot-info obtenu en fin de réparation avancée : https://paste.ubuntu.com/p/vGMD4z4wgh/
Je colle le contenu de ce Boot-info ci-dessous :

Boot Info Script 71f6c5c + Boot-Repair extra info      [Boot-Info 16mar2020]


============================= Boot Info Summary: ===============================

 => Grub2 (v1.99-2.00) is installed in the MBR of /dev/sda and looks at sector 
    73789248 of the same hard drive for core.img, but core.img can not be 
    found at this location.
 => libparted MBR boot code is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sda2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows 8/2012: FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/ubuntu/grub.cfg /efi/BOOT/bkpbootx64.efi 
                       /efi/BOOT/bootx64.efi /efi/BOOT/fbx64.efi 
                       /efi/BOOT/grubx64.efi /efi/BOOT/mmx64.efi 
                       /efi/ubuntu/fwupx64.efi /efi/ubuntu/grubx64.efi 
                       /efi/ubuntu/mmx64.efi /efi/ubuntu/shimx64.efi 
                       /efi/ubuntu/grub.cfg /efi/Microsoft/Boot/bootmgfw.efi 
                       /efi/Microsoft/Boot/bootmgr.efi 
                       /efi/Microsoft/Boot/memtest.efi

sda3: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 

sda4: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /Windows/System32/winload.exe

sda5: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu Focal Fossa (development branch)
    Boot files:        /boot/grub/grub.cfg /etc/fstab

sda6: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

sda7: __________________________________________________________________________

    File system:       swap
    Boot sector type:  -
    Boot sector info: 

sdb1: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

============================ Drive/Partition Info: =============================

Drive: sda _____________________________________________________________________
Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1    84,559,679    84,559,679  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048       923,647       921,600 Windows Recovery Environment (Windows)
/dev/sda2               923,648     1,126,399       202,752 EFI System partition
/dev/sda3             1,126,400     1,159,167        32,768 EFI System partition
/dev/sda4             1,159,168    50,636,799    49,477,632 Data partition (Windows/Linux)
/dev/sda5            50,636,800    78,698,495    28,061,696 Data partition (Linux)
/dev/sda6            78,698,496    82,606,079     3,907,584 Data partition (Linux)
/dev/sda7            82,606,080    84,557,823     1,951,744 Swap partition (Linux)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1               2,048    67,108,863    67,106,816  83 Linux


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/sda1        72E8CBBEE8CB7EBB                       ntfs       Récupération
/dev/sda2        C4D1-8AAE                              vfat       
/dev/sda3                                                          
/dev/sda4        B606ECD606EC989F                       ntfs       
/dev/sda5        7867687a-23dd-4ba9-a158-f3781c9d569e   ext4       
/dev/sda6        5c83c06b-be67-4270-80bb-3ee816fc5788   ext4       
/dev/sda7        9eb0b62d-a932-4de1-a3f5-be40200e5123   swap       
/dev/sdb1        6c14aa5c-a67b-4211-afd2-42ff350e60b0   ext4       images_win10_EFI
/dev/sr0         2020-02-20-07-51-12-00                 iso9660    Ubuntu 20.04 LTS amd64

========================= "ls -l /dev/disk/by-id" output: ======================

total 0
lrwxrwxrwx 1 root root  9 Mar 23  2020 ata-VBOX_CD-ROM_VB1-1a2b3c4d -> ../../sr0
lrwxrwxrwx 1 root root  9 Mar 23 07:43 ata-VBOX_HARDDISK_VB2db79605-645acf7a -> ../../sda
lrwxrwxrwx 1 root root 10 Mar 23 08:01 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Mar 23 07:43 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Mar 23 07:43 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Mar 23 08:01 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Mar 23 07:43 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Mar 23 07:43 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part6 -> ../../sda6
lrwxrwxrwx 1 root root 10 Mar 23 07:43 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part7 -> ../../sda7
lrwxrwxrwx 1 root root  9 Mar 23 07:43 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f -> ../../sdb
lrwxrwxrwx 1 root root 10 Mar 23 07:43 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f-part1 -> ../../sdb1

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/fuse        /run/user/999/doc        fuse       (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/loop0       /rofs                    squashfs   (ro,noatime)
/dev/sr0         /cdrom                   iso9660    (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)


========================== sda2/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 7867687a-23dd-4ba9-a158-f3781c9d569e root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

========================== sda2/efi/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 7867687a-23dd-4ba9-a158-f3781c9d569e root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=========================== sda5/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${initrdfail}" = 2 ]; then
   set initrdfail=
elif [ "${initrdfail}" = 1 ]; then
   set next_entry="${prev_entry}"
   set prev_entry=
   save_env prev_entry
   if [ "${next_entry}" ]; then
      set initrdfail=2
   fi
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function initrdfail {
    if [ -n "${have_grubenv}" ]; then if [ -n "${partuuid}" ]; then
      if [ -z "${initrdfail}" ]; then
        set initrdfail=1
        if [ -n "${boot_once}" ]; then
          set prev_entry="${default}"
          save_env prev_entry
        fi
      fi
      save_env initrdfail
    fi; fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
else
  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=C
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=10
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=10
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 10 ; then
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=7
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-7867687a-23dd-4ba9-a158-f3781c9d569e' {
	recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
	else
	  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
	fi
	linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-5.4.0-18-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
	menuentry 'Ubuntu, with Linux 5.4.0-18-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-18-generic-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 5.4.0-18-generic ...'
		linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-18-generic
	}
	menuentry 'Ubuntu, with Linux 5.4.0-18-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-18-generic-recovery-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 5.4.0-18-generic ...'
		linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-18-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-91-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-91-generic-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-91-generic ...'
		linux	/boot/vmlinuz-4.15.0-91-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-91-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-91-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-91-generic-recovery-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-91-generic ...'
		linux	/boot/vmlinuz-4.15.0-91-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-91-generic
	}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_linux_zfs ###
### END /etc/grub.d/10_linux_zfs ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/25_custom ###

menuentry "Windows UEFI bootmgfw.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}

menuentry "EFI/BOOT/bkpbootx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/bkpbootx64.efi
}

menuentry "EFI/BOOT/fbx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/fbx64.efi
}

menuentry "EFI/BOOT/mmx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/mmx64.efi
}

menuentry "EFI/ubuntu/fwupx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/fwupx64.efi
}

menuentry "EFI/ubuntu/mmx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/mmx64.efi
}
### END /etc/grub.d/25_custom ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-C4D1-8AAE' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  C4D1-8AAE
	else
	  search --no-floppy --fs-uuid --set=root C4D1-8AAE
	fi
	chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
	fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sda5/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda5 during installation
UUID=7867687a-23dd-4ba9-a158-f3781c9d569e /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda2 during installation
#UUID=C4D1-8AAE  /boot/efi       vfat    umask=0077      0       1
# /home was on /dev/sda6 during installation
UUID=5c83c06b-be67-4270-80bb-3ee816fc5788 /home           ext4    defaults        0       2
# swap was on /dev/sda7 during installation
UUID=9eb0b62d-a932-4de1-a3f5-be40200e5123 none            swap    sw              0       0
UUID=C4D1-8AAE	/boot/efi	vfat	defaults	0	1
--------------------------------------------------------------------------------

=================== sda5: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

  28.300765991 = 30.387716096   boot/grub/grub.cfg                             1
  36.781356812 = 39.493681152   boot/vmlinuz                                   2
  37.141586304 = 39.880474624   boot/vmlinuz-4.15.0-91-generic                 2
  36.781356812 = 39.493681152   boot/vmlinuz-5.4.0-18-generic                  2
  37.141586304 = 39.880474624   boot/vmlinuz.old                               2
  37.141586304 = 39.880474624   vmlinuz                                        2
  24.902458191 = 26.738810880   boot/initrd.img                                5
  24.905689240 = 26.742280192   boot/initrd.img-4.15.0-91-generic              5
  24.902458191 = 26.738810880   boot/initrd.img-5.4.0-18-generic               5
  24.905689240 = 26.742280192   boot/initrd.img.old                            5
  24.905689240 = 26.742280192   initrd.img                                     5

=============================== StdErr Messages: ===============================

File descriptor 9 (/proc/5389/mountinfo) leaked on lvs invocation. Parent PID 26974: bash

ADDITIONAL INFORMATION :
=================== log of boot-repair 20200323_0742 ===================
boot-repair version : 4ppa75
boot-sav version : 4ppa75
boot-sav-extra version :
glade2script version : 3.2.4~ppa6
Warning: Unable to open /dev/sr0 read-write (Read-only file system).  /dev/sr0 has been opened read-only.
boot-repair is executed in live-session (Ubuntu Focal Fossa (development branch), focal, Ubuntu, x86_64)
CPU op-mode(s):                  32-bit, 64-bit
Address sizes:                   48 bits physical, 48 bits virtual
BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed quiet splash ---

=================== os-prober:
/dev/sda2@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
/dev/sda5:Ubuntu Focal Fossa (development branch) (20.04):Ubuntu:linux

=================== blkid:
/dev/sda1: LABEL="RM-CM-)cupM-CM-)ration" UUID="72E8CBBEE8CB7EBB" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="07380664-6dd4-4925-aeac-a435b34ad9f5"
/dev/sda2: UUID="C4D1-8AAE" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="1ab7abb3-31e4-4289-9a3a-587ac6546242"
/dev/sda4: UUID="B606ECD606EC989F" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="63728c63-f8c6-4f3b-8882-3688c4f80734"
/dev/sda5: UUID="7867687a-23dd-4ba9-a158-f3781c9d569e" TYPE="ext4" PARTUUID="8e8ca714-97e7-45a9-afd0-d9ee0c9499c1"
/dev/sda6: UUID="5c83c06b-be67-4270-80bb-3ee816fc5788" TYPE="ext4" PARTUUID="887c27c8-878d-4241-9ee8-e23d01b4b371"
/dev/sdb1: LABEL="images_win10_EFI" UUID="6c14aa5c-a67b-4211-afd2-42ff350e60b0" TYPE="ext4" PARTUUID="52caac94-01"
/dev/sr0: UUID="2020-02-20-07-51-12-00" LABEL="Ubuntu 20.04 LTS amd64" TYPE="iso9660" PTUUID="72b2b8e0" PTTYPE="dos"
/dev/loop0: TYPE="squashfs"
/dev/sda7: UUID="9eb0b62d-a932-4de1-a3f5-be40200e5123" TYPE="swap" PARTUUID="11dedfb2-818f-475f-90cd-2da94e38357f"
/dev/sda3: PARTLABEL="Microsoft reserved partition" PARTUUID="c21c3b27-c875-4428-a0d8-0c431338197b"


1 disks with OS, 2 OS : 1 Linux, 0 MacOS, 1 Windows, 0 unknown type OS.

Windows not detected by os-prober on sda4.
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda2/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/grubx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda2/EFI/Boot/mmx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 20 17:58 grub.d
total 128
-rwxr-xr-x 1 root root 10627 Mar 11 16:46 00_header
-rwxr-xr-x 1 root root  6258 Jul 16  2018 05_debian_theme
-rwxr-xr-x 1 root root 17123 Mar 11 16:46 10_linux
-rwxr-xr-x 1 root root 38596 Mar 11 16:46 10_linux_zfs
-rwxr-xr-x 1 root root 12894 Mar 11 16:46 20_linux_xen
-rwxr-xr-x 1 root root  1992 Jan 28  2016 20_memtest86+
-rwxr-xr-x 1 root root 12059 Jul 17  2018 30_os-prober
-rwxr-xr-x 1 root root  1424 Mar 11 16:46 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Jul 17  2018 40_custom
-rwxr-xr-x 1 root root   216 Jul 17  2018 41_custom
-rw-r--r-- 1 root root   483 Jul 17  2018 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
#GRUB_CMDLINE_LINUX_DEFAULT="fsck.mode=force fsck.repair=yes"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"





/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
ls /sys/firmware/efi/vars : new_var,del_var,boot-args-7c436110-ab2a-4bbb-a880-fe41995c9f82,Test1-e660597e-b94d-4209-9c80-1805b5d19b69,Test0-e660597e-b94d-4209-9c80-1805b5d19b69,RTC-378d7b65-8da9-4773-b6e4-a47826a833e1,PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c,OsIndicationsSupported-8be4df61-93ca-11d2-aa0d-00e098032b8c,MemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa,MTC-eb704011-1402-11d3-8e77-00a0c969723b,LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c,FirmwareFeaturesMask-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,FirmwareFeatures-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOptionSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0003-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0002-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c,BackgroundClear-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,
Please report this message to boot.repair@gmail.com

=================== efibootmgr -v
BootCurrent: 0000
BootOrder: 0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot maybe enabled. (maybe sec-boot, Please report this message to boot.repair@gmail.com)


=================== PARTITIONS & DISKS:
sda1	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda1.
sda2	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	is-correct-EFI,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda2.
sda4	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	haswinload,	no-recov-nor-hid,	bootmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda4.
sda5	: sda,	not-sepboot,	grubenv-ok	grub2,	signed grub-pc grub-efi ,	update-grub,	64,	with-boot,	is-os,	not--efi--part,	fstab-without-boot,	fstab-has-goodEFI,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	apt-get,	grub-install,	with--usr,	fstab-without-usr,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda5.
sda6	: sda,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda6.
sdb1	: sdb,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sdb1.

sda	: GPT,	no-BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes
sdb	: not-GPT,	BIOSboot-not-needed,	has-no-EFIpart, 	not-usb,	not-mmc, no-os,	2048 sectors * 512 bytes


=================== parted -lm:

BYT;
/dev/sda:43.3GB:scsi:512:512:gpt:ATA VBOX HARDDISK:;
1:1049kB:473MB:472MB:ntfs:Basic data partition:diag;
2:473MB:577MB:104MB:fat32:EFI system partition:boot, esp;
3:577MB:593MB:16.8MB::Microsoft reserved partition:boot, esp;
4:593MB:25.9GB:25.3GB:ntfs:Basic data partition:msftdata;
5:25.9GB:40.3GB:14.4GB:ext4::;
6:40.3GB:42.3GB:2001MB:ext4::;
7:42.3GB:43.3GB:999MB:linux-swap(v1)::swap;

BYT;
/dev/sdb:34.4GB:scsi:512:512:msdos:ATA VBOX HARDDISK:;
1:1049kB:34.4GB:34.4GB:ext4::;

BYT;
/dev/sr0:2743MB:scsi:2048:2048:mac:VBOX CD-ROM:;
1:2048B:6143B:4096B::Apple:;
2:2299MB:2303MB:4063kB::EFI:;

=================== lsblk:
KNAME TYPE FSTYPE    SIZE LABEL
loop0 loop squashfs    2G
sda   disk          40.3G
sda1  part ntfs      450M Récupération
sda2  part vfat       99M
sda3  part            16M
sda4  part ntfs     23.6G
sda5  part ext4     13.4G
sda6  part ext4      1.9G
sda7  part swap      953M
sdb   disk            32G
sdb1  part ext4       32G images_win10_EFI
sr0   rom  iso9660   2.6G Ubuntu 20.04 LTS amd64

KNAME ROTA RO RM STATE   MOUNTPOINT
loop0    1  1  0         /rofs
sda      1  0  0 running
sda1     1  0  0         /mnt/boot-sav/sda1
sda2     1  0  0         /mnt/boot-sav/sda2
sda3     1  0  0
sda4     1  0  0         /mnt/boot-sav/sda4
sda5     1  0  0         /mnt/boot-sav/sda5
sda6     1  0  0         /mnt/boot-sav/sda6
sda7     1  0  0         [SWAP]
sdb      1  0  0 running
sdb1     1  0  0         /mnt/boot-sav/sdb1
sr0      1  0  1 running /cdrom


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=969560k,nr_inodes=242390,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,relatime,size=203424k,mode=755)
/dev/sr0 on /cdrom type iso9660 (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)
/dev/loop0 on /rofs type squashfs (ro,noatime)
/cow on / type overlay (rw,relatime,lowerdir=/filesystem.squashfs,upperdir=/cow/upper,workdir=/cow/work)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
none on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=27,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=809)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime)
tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=203420k,mode=700,uid=999,gid=999)
gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/fuse on /run/user/999/doc type fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/dev/sda1 on /mnt/boot-sav/sda1 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda2 on /mnt/boot-sav/sda2 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda4 on /mnt/boot-sav/sda4 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda5 on /mnt/boot-sav/sda5 type ext4 (rw,relatime)
/dev/sda6 on /mnt/boot-sav/sda6 type ext4 (rw,relatime)
/dev/sdb1 on /mnt/boot-sav/sdb1 type ext4 (rw,relatime)


=================== ls:
/sys/block/sda (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sda1 sda2 sda3 sda4 sda5 sda6 sda7 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/sys/block/sr0 (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro size slaves stat subsystem trace uevent
/dev (filtered):  autofs block bsg btrfs-control bus cdrom char console core cpu_dma_latency cuse disk dri dvd ecryptfs fb0 fd full fuse hidraw0 hpet hugepages hwrng i2c-0 initctl input kmsg lightnvm log mapper mcelog mem mqueue net null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda3 sda4 sda5 sda6 sda7 sdb sdb1 sg0 sg1 sg2 shm snapshot snd sr0 stderr stdin stdout udmabuf uhid uinput urandom userio vboxguest vboxuser vfio vga_arbiter vhci vhost-net vhost-vsock zero zfs
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff 0f 0e 00 00 00 00 00  |................|
00000030  00 96 00 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  bb 7e cb e8 be cb e8 72  |.........~.....r|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda2
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 02 0e 1a  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 18 0e 00  |........?.......|
00000020  00 18 03 00 f9 02 00 00  00 00 00 00 02 00 00 00  |................|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 01 29 ae 8a d1 c4 4e  4f 20 4e 41 4d 45 20 20  |..)....NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  88 56 40 88 4e 02 8a 56  |{......|.V@.N..V|
00000070  40 b4 41 bb aa 55 cd 13  72 10 81 fb 55 aa 75 0a  |@.A..U..r...U.u.|
00000080  f6 c1 01 74 05 fe 46 02  eb 2d 8a 56 40 b4 08 cd  |...t..F..-.V@...|
00000090  13 73 05 b9 ff ff 8a f1  66 0f b6 c6 40 66 0f b6  |.s......f...@f..|
000000a0  d1 80 e2 3f f7 e2 86 cd  c0 ed 06 41 66 0f b7 c9  |...?.......Af...|
000000b0  66 f7 e1 66 89 46 f8 83  7e 16 00 75 39 83 7e 2a  |f..f.F..~..u9.~*|
000000c0  00 77 33 66 8b 46 1c 66  83 c0 0c bb 00 80 b9 01  |.w3f.F.f........|
000000d0  00 e8 2c 00 e9 a8 03 a1  f8 7d 80 c4 7c 8b f0 ac  |..,......}..|...|
000000e0  84 c0 74 17 3c ff 74 09  b4 0e bb 07 00 cd 10 eb  |..t.<.t.........|
000000f0  ee a1 fa 7d eb e4 a1 7d  80 eb df 98 cd 16 cd 19  |...}...}........|
00000100  66 60 80 7e 02 00 0f 84  20 00 66 6a 00 66 50 06  |f`.~.... .fj.fP.|
00000110  53 66 68 10 00 01 00 b4  42 8a 56 40 8b f4 cd 13  |Sfh.....B.V@....|
00000120  66 58 66 58 66 58 66 58  eb 33 66 3b 46 f8 72 03  |fXfXfXfX.3f;F.r.|
00000130  f9 eb 2a 66 33 d2 66 0f  b7 4e 18 66 f7 f1 fe c2  |..*f3.f..N.f....|
00000140  8a ca 66 8b d0 66 c1 ea  10 f7 76 1a 86 d6 8a 56  |..f..f....v....V|
00000150  40 8a e8 c0 e4 06 0a cc  b8 01 02 cd 13 66 61 0f  |@............fa.|
00000160  82 74 ff 81 c3 00 02 66  40 49 75 94 c3 42 4f 4f  |.t.....f@Iu..BOO|
00000170  54 4d 47 52 20 20 20 20  00 00 00 00 00 00 00 00  |TMGR    ........|
00000180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  00 00 00 00 00 00 00 00  00 00 00 00 0d 0a 45 72  |..............Er|
000001b0  72 2e 20 64 69 73 71 75  65 ff 0d 0a 50 72 65 73  |r. disque...Pres|
000001c0  73 65 7a 20 75 6e 65 20  74 6f 75 63 68 65 20 70  |sez une touche p|
000001d0  6f 75 72 20 72 65 64 82  6d 61 72 72 65 72 0d 0a  |our red.marrer..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 00 00  ac 01 ba 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda4
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 b0 11 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff f7 f2 02 00 00 00 00  |................|
00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  9f 98 ec 06 d6 ec 06 b6  |................|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== df -Th:

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  947M     0  947M   0% /dev
tmpfs          tmpfs     199M  1.4M  198M   1% /run
/dev/sr0       iso9660   2.6G  2.6G     0 100% /cdrom
/dev/loop0     squashfs  2.0G  2.0G     0 100% /rofs
/cow           overlay   994M  324M  670M  33% /
tmpfs          tmpfs     994M   16M  979M   2% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     994M     0  994M   0% /sys/fs/cgroup
tmpfs          tmpfs     994M  508K  993M   1% /tmp
tmpfs          tmpfs     199M   56K  199M   1% /run/user/999
/dev/sda1      fuseblk   450M  389M   62M  87% /mnt/boot-sav/sda1
/dev/sda2      vfat       95M   67M   29M  71% /mnt/boot-sav/sda2
/dev/sda4      fuseblk    24G   17G  7.3G  70% /mnt/boot-sav/sda4
/dev/sda5      ext4       14G  7.2G  5.3G  58% /mnt/boot-sav/sda5
/dev/sda6      ext4      1.9G   74M  1.7G   5% /mnt/boot-sav/sda6
/dev/sdb1      ext4       32G   16G   15G  53% /mnt/boot-sav/sdb1

=================== fdisk -l:
Disk /dev/loop0: 1.97 GiB, 2090962944 bytes, 4083912 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 2530EA09-698D-4322-B791-29F4A072F62E

Device        Start      End  Sectors  Size Type
/dev/sda1      2048   923647   921600  450M Windows recovery environment
/dev/sda2    923648  1126399   202752   99M EFI System
/dev/sda3   1126400  1159167    32768   16M EFI System
/dev/sda4   1159168 50636799 49477632 23.6G Microsoft basic data
/dev/sda5  50636800 78698495 28061696 13.4G Linux filesystem
/dev/sda6  78698496 82606079  3907584  1.9G Linux filesystem
/dev/sda7  82606080 84557823  1951744  953M Linux swap


Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x52caac94

Device     Boot Start      End  Sectors Size Id Type
/dev/sdb1        2048 67108863 67106816  32G 83 Linux




=================== Default settings of Boot Repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda2/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file


=================== Final advice in case of suggested repair
Please do not forget to make your BIOS boot on sda2/efi/.../grub*.efi file!

If your computer reboots directly into Windows, try to change the boot order in your BIOS.
If your BIOS does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI\...\grub*.efi


=================== User settings
The settings chosen by the user will purge (in order to unsign) and reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda2/boot/efi,
Additional repair will be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file


Quantity of real Windows: 1
Mount sda2 on /mnt/boot-sav/sda5/boot/efi
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/mmx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi
chroot /mnt/boot-sav/sda5 apt-get -y update
The AppStream system cache was updated, but some components were ignored. Refer to the verbose log for more information.
Purge the GRUB of sda5
grub-efi-amd64-signed available


0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 99 not upgraded.
DEBCHECK debOK, grub-efi-amd64-signed
DEBCHECK debOK
shim-signed available
Please type: sudo chroot "/mnt/boot-sav/sda5" dpkg --configure -ansudo chroot "/mnt/boot-sav/sda5" dpkg --configure -ansudo chroot "/mnt/boot-sav/sda5" apt-get install -fynsudo chroot "/mnt/boot-sav/sda5" apt-get purge -y grub*-common shim-signed
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/mmx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 23 07:54 grub.d
total 4
-rwxr-xr-x 1 root root 1992 Jan 28  2016 20_memtest86+


/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
shim-signed available
linux-headers-generic available
linux-signed-generic available
Then type: sudo chroot "/mnt/boot-sav/sda5" apt-get install -y grub-efi-amd64-signed shim-signed linux-headers-generic linux-signed-generic
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/mmx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 23 07:56 grub.d
drwxr-xr-x  2 root root    4096 Mar 23 07:54 grub.d.bak
total 124
-rwxr-xr-x 1 root root 10627 Mar 11 16:46 00_header
-rwxr-xr-x 1 root root  6258 Mar 11 16:46 05_debian_theme
-rwxr-xr-x 1 root root 17123 Mar 11 16:46 10_linux
-rwxr-xr-x 1 root root 38596 Mar 11 16:46 10_linux_zfs
-rwxr-xr-x 1 root root 12894 Mar 11 16:46 20_linux_xen
-rwxr-xr-x 1 root root 12059 Mar 11 16:46 30_os-prober
-rwxr-xr-x 1 root root  1424 Mar 11 16:46 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Mar 11 16:46 40_custom
-rwxr-xr-x 1 root root   216 Mar 11 16:46 41_custom
-rw-r--r-- 1 root root   483 Mar 11 16:46 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
Unhide GRUB boot menu in sda5/etc/default/grub
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/grubx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda5/boot/efi/EFI/Boot/mmx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Mar 23 07:56 grub.d
drwxr-xr-x  2 root root    4096 Mar 23 07:54 grub.d.bak
total 124
-rwxr-xr-x 1 root root 10627 Mar 11 16:46 00_header
-rwxr-xr-x 1 root root  6258 Mar 11 16:46 05_debian_theme
-rwxr-xr-x 1 root root 17123 Mar 11 16:46 10_linux
-rwxr-xr-x 1 root root 38596 Mar 11 16:46 10_linux_zfs
-rwxr-xr-x 1 root root 12894 Mar 11 16:46 20_linux_xen
-rwxr-xr-x 1 root root 12059 Mar 11 16:46 30_os-prober
-rwxr-xr-x 1 root root  1424 Mar 11 16:46 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Mar 11 16:46 40_custom
-rwxr-xr-x 1 root root   216 Mar 11 16:46 41_custom
-rw-r--r-- 1 root root   483 Mar 11 16:46 README




=================== sda5/etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
lspci: Unable to load libkmod resources: error -12

*******lspci -nnk | grep -iA3 vga
00:02.0 VGA compatible controller [0300]: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef]
Kernel driver in use: vboxvideo
00:03.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit Ethernet Controller [8086:100e] (rev 02)
Subsystem: Intel Corporation PRO/1000 MT Desktop Adapter [8086:001e]
*******

grub-install --version
grub-install (GRUB) 2.04-1ubuntu22,grub-install (GRUB) 2.

chroot /mnt/boot-sav/sda5 efibootmgr -v
BootCurrent: 0000
BootOrder: 0004,0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
Boot0004* ubuntu	HD(2,GPT,1ab7abb3-31e4-4289-9a3a-587ac6546242,0xe1800,0x31800)/File(EFIubuntushimx64.efi)

chroot /mnt/boot-sav/sda5 uname -r
Kernel: 5.4.0-14-generic

Reinstall the grub-efi-amd64-signed shim-signed linux-headers-generic linux-signed-generic of sda5
Installing for x86_64-efi platform.
Installation finished. No error reported.
grub-install --efi-directory=/boot/efi --target=x86_64-efi --uefi-secure-boot : exit code of grub-install :0
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/mmx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi
df /dev/sda2
mv /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bkpbootx64.efi
cp /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/shimx64.efi /mnt/boot-sav/sda5/boot/efi/EFI/Boot/bootx64.efi
efi files in sda2/efi: /Microsoft/Boot/memtest.efi /Microsoft/Boot/bootmgr.efi /Microsoft/Boot/bootmgfw.efi /ubuntu/shimx64.efi /ubuntu/mmx64.efi /ubuntu/grubx64.efi /ubuntu/fwupx64.efi /BOOT/mmx64.efi /BOOT/grubx64.efi /BOOT/fbx64.efi /BOOT/bootx64.efi /BOOT/bkpbootx64.efi
Add /mnt/boot-sav/sda5/boot/efi efi entries in /mnt/boot-sav/sda5/etc/grub.d/25_custom
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/BOOT/bkpbootx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/BOOT/fbx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/BOOT/mmx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/fwupx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/mmx64.efi
sda2/bootmgfw.efi already added
Installing for x86_64-efi platform.
Installation finished. No error reported.
grub-install --efi-directory=/boot/efi --target=x86_64-efi --uefi-secure-boot : exit code of grub-install :0

chroot /mnt/boot-sav/sda5 efibootmgr -v
BootCurrent: 0000
BootOrder: 0004,0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
Boot0004* ubuntu	HD(2,GPT,1ab7abb3-31e4-4289-9a3a-587ac6546242,0xe1800,0x31800)/File(EFIubuntushimx64.efi)

chroot /mnt/boot-sav/sda5 update-grub
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.4.0-18-generic
Found initrd image: /boot/initrd.img-5.4.0-18-generic
Found linux image: /boot/vmlinuz-4.15.0-91-generic
Found initrd image: /boot/initrd.img-4.15.0-91-generic
Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi
Adding boot menu entry for UEFI Firmware Settings
Unhide GRUB boot menu in sda5/boot/grub/grub.cfg

Boot successfully repaired.

You can now reboot your computer.
Please do not forget to make your BIOS boot on sda2/EFI/ubuntu/shimx64.efi file!

If your computer reboots directly into Windows, try to change the boot order in your BIOS.
If your BIOS does not allow to change the boot order, change the default boot entry of the Windows bootloader.
For example you can boot into Windows, then type the following command in an admin command prompt:
bcdedit /set {bootmgr} path \EFI\ubuntu\shimx64.efi

EDIT_1 : si on analyse ce qui a changé, dans le post #1 la commande à passer était :

ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get purge -y grub*-common grub-common:i386 shim-signed

Alors qu'avec la version actuelle 4ppa75 de Boot-repair, la commande est devenue :

ubuntu@ubuntu:~$ sudo chroot "/mnt/boot-sav/sda5" apt-get purge -y grub*-common shim-signed

Tu as bien viré grub-common:i386 qui était la cause du problème (ton post #2).

EDIT_2 : je termine par un Boot-info réalisé depuis une session du Ubuntu 20.04 "réparé" ( https://paste.ubuntu.com/p/3KgkfkjCbz/ ) que je colle ci-dessous :

Boot Info Script 71f6c5c + Boot-Repair extra info      [Boot-Info 16mar2020]


============================= Boot Info Summary: ===============================

 => Grub2 (v1.99-2.00) is installed in the MBR of /dev/sda and looks at sector 
    73789248 of the same hard drive for core.img, but core.img can not be 
    found at this location.
 => libparted MBR boot code is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sda2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows 8/2012: FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/ubuntu/grub.cfg /efi/BOOT/bkpbootx64.efi 
                       /efi/BOOT/bootx64.efi /efi/BOOT/fbx64.efi 
                       /efi/BOOT/grubx64.efi /efi/BOOT/mmx64.efi 
                       /efi/ubuntu/fwupx64.efi /efi/ubuntu/grubx64.efi 
                       /efi/ubuntu/mmx64.efi /efi/ubuntu/shimx64.efi 
                       /efi/ubuntu/grub.cfg /efi/Microsoft/Boot/bootmgfw.efi 
                       /efi/Microsoft/Boot/bootmgr.efi 
                       /efi/Microsoft/Boot/memtest.efi

sda3: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 

sda4: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows 8/2012: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /Windows/System32/winload.exe

sda5: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu Focal Fossa (development branch)
    Boot files:        /boot/grub/grub.cfg /etc/fstab

sda6: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

sda7: __________________________________________________________________________

    File system:       swap
    Boot sector type:  -
    Boot sector info: 

sdb1: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        

============================ Drive/Partition Info: =============================

Drive: sda _____________________________________________________________________
Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1    84,559,679    84,559,679  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048       923,647       921,600 Windows Recovery Environment (Windows)
/dev/sda2               923,648     1,126,399       202,752 EFI System partition
/dev/sda3             1,126,400     1,159,167        32,768 EFI System partition
/dev/sda4             1,159,168    50,636,799    49,477,632 Data partition (Windows/Linux)
/dev/sda5            50,636,800    78,698,495    28,061,696 Data partition (Linux)
/dev/sda6            78,698,496    82,606,079     3,907,584 Data partition (Linux)
/dev/sda7            82,606,080    84,557,823     1,951,744 Swap partition (Linux)

Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bits set

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1               2,048    67,108,863    67,106,816  83 Linux


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/loop1                                              squashfs   
/dev/loop10                                             squashfs   
/dev/loop11                                             squashfs   
/dev/loop12                                             squashfs   
/dev/loop13                                             squashfs   
/dev/loop2                                              squashfs   
/dev/loop3                                              squashfs   
/dev/loop4                                              squashfs   
/dev/loop5                                              squashfs   
/dev/loop6                                              squashfs   
/dev/loop7                                              squashfs   
/dev/loop8                                              squashfs   
/dev/loop9                                              squashfs   
/dev/sda1        72E8CBBEE8CB7EBB                       ntfs       Récupération
/dev/sda2        C4D1-8AAE                              vfat       
/dev/sda3                                                          
/dev/sda4        B606ECD606EC989F                       ntfs       
/dev/sda5        7867687a-23dd-4ba9-a158-f3781c9d569e   ext4       
/dev/sda6        5c83c06b-be67-4270-80bb-3ee816fc5788   ext4       
/dev/sda7        9eb0b62d-a932-4de1-a3f5-be40200e5123   swap       
/dev/sdb1        6c14aa5c-a67b-4211-afd2-42ff350e60b0   ext4       images_win10_EFI

========================= "ls -l /dev/disk/by-id" output: ======================

total 0
lrwxrwxrwx 1 root root  9 Mar 23 09:34 ata-VBOX_CD-ROM_VB1-1a2b3c4d -> ../../sr0
lrwxrwxrwx 1 root root  9 Mar 23 09:45 ata-VBOX_HARDDISK_VB2db79605-645acf7a -> ../../sda
lrwxrwxrwx 1 root root 10 Mar 23 09:51 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Mar 23 09:45 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Mar 23 09:45 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Mar 23 09:51 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Mar 23 09:45 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Mar 23 09:45 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part6 -> ../../sda6
lrwxrwxrwx 1 root root 10 Mar 23 09:45 ata-VBOX_HARDDISK_VB2db79605-645acf7a-part7 -> ../../sda7
lrwxrwxrwx 1 root root  9 Mar 23 09:45 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f -> ../../sdb
lrwxrwxrwx 1 root root 10 Mar 23 09:45 ata-VBOX_HARDDISK_VB8e816ea2-fefc916f-part1 -> ../../sdb1

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/fuse        /run/user/1000/doc       fuse       (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
/dev/sda2        /boot/efi                vfat       (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda5        /                        ext4       (rw,relatime,errors=remount-ro)
/dev/sda6        /home                    ext4       (rw,relatime)


========================== sda2/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 7867687a-23dd-4ba9-a158-f3781c9d569e root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

========================== sda2/efi/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid 7867687a-23dd-4ba9-a158-f3781c9d569e root hd0,gpt5 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=========================== sda5/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${initrdfail}" = 2 ]; then
   set initrdfail=
elif [ "${initrdfail}" = 1 ]; then
   set next_entry="${prev_entry}"
   set prev_entry=
   save_env prev_entry
   if [ "${next_entry}" ]; then
      set initrdfail=2
   fi
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function initrdfail {
    if [ -n "${have_grubenv}" ]; then if [ -n "${partuuid}" ]; then
      if [ -z "${initrdfail}" ]; then
        set initrdfail=1
        if [ -n "${boot_once}" ]; then
          set prev_entry="${default}"
          save_env prev_entry
        fi
      fi
      save_env initrdfail
    fi; fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
else
  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=C
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=10
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=10
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 10 ; then
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
	set gfxpayload="${1}"
	if [ "${1}" = "keep" ]; then
		set vt_handoff=vt.handoff=7
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-7867687a-23dd-4ba9-a158-f3781c9d569e' {
	recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
	else
	  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
	fi
	linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-5.4.0-18-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
	menuentry 'Ubuntu, with Linux 5.4.0-18-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-18-generic-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 5.4.0-18-generic ...'
		linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-18-generic
	}
	menuentry 'Ubuntu, with Linux 5.4.0-18-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-18-generic-recovery-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 5.4.0-18-generic ...'
		linux	/boot/vmlinuz-5.4.0-18-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-5.4.0-18-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-91-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-91-generic-advanced-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-91-generic ...'
		linux	/boot/vmlinuz-4.15.0-91-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-91-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-91-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-91-generic-recovery-7867687a-23dd-4ba9-a158-f3781c9d569e' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt5'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  7867687a-23dd-4ba9-a158-f3781c9d569e
		else
		  search --no-floppy --fs-uuid --set=root 7867687a-23dd-4ba9-a158-f3781c9d569e
		fi
		echo	'Loading Linux 4.15.0-91-generic ...'
		linux	/boot/vmlinuz-4.15.0-91-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-91-generic
	}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_linux_zfs ###
### END /etc/grub.d/10_linux_zfs ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/25_custom ###

menuentry "Windows UEFI bootmgfw.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}

menuentry "EFI/BOOT/bkpbootx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/bkpbootx64.efi
}

menuentry "EFI/BOOT/fbx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/fbx64.efi
}

menuentry "EFI/BOOT/mmx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/BOOT/mmx64.efi
}

menuentry "EFI/ubuntu/fwupx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/fwupx64.efi
}

menuentry "EFI/ubuntu/mmx64.efi" {
search --fs-uuid --no-floppy --set=root C4D1-8AAE
chainloader (${root})/EFI/ubuntu/mmx64.efi
}
### END /etc/grub.d/25_custom ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-C4D1-8AAE' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  C4D1-8AAE
	else
	  search --no-floppy --fs-uuid --set=root C4D1-8AAE
	fi
	chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
	fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sda5/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda5 during installation
UUID=7867687a-23dd-4ba9-a158-f3781c9d569e /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda2 during installation
#UUID=C4D1-8AAE  /boot/efi       vfat    umask=0077      0       1
# /home was on /dev/sda6 during installation
UUID=5c83c06b-be67-4270-80bb-3ee816fc5788 /home           ext4    defaults        0       2
# swap was on /dev/sda7 during installation
UUID=9eb0b62d-a932-4de1-a3f5-be40200e5123 none            swap    sw              0       0
UUID=C4D1-8AAE	/boot/efi	vfat	defaults	0	1
--------------------------------------------------------------------------------

=================== sda5: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

  28.300765991 = 30.387716096   boot/grub/grub.cfg                             1
  36.781356812 = 39.493681152   boot/vmlinuz                                   2
  37.141586304 = 39.880474624   boot/vmlinuz-4.15.0-91-generic                 2
  36.781356812 = 39.493681152   boot/vmlinuz-5.4.0-18-generic                  2
  37.141586304 = 39.880474624   boot/vmlinuz.old                               2
  37.141586304 = 39.880474624   vmlinuz                                        2
  24.902458191 = 26.738810880   boot/initrd.img                                5
  24.905689240 = 26.742280192   boot/initrd.img-4.15.0-91-generic              5
  24.902458191 = 26.738810880   boot/initrd.img-5.4.0-18-generic               5
  24.905689240 = 26.742280192   boot/initrd.img.old                            5
  24.905689240 = 26.742280192   initrd.img                                     5


ADDITIONAL INFORMATION :
=================== log of boot-info 20200323_0944 ===================
boot-info version : 4ppa75
boot-sav version : 4ppa75
boot-sav-extra version : 4ppa75
glade2script version : 3.2.4~ppa6
boot-info is executed in installed-session (Ubuntu Focal Fossa (development branch), focal, Ubuntu, x86_64)
CPU op-mode(s):                  32-bit, 64-bit
Address sizes:                   48 bits physical, 48 bits virtual
BOOT_IMAGE=/boot/vmlinuz-5.4.0-18-generic root=UUID=7867687a-23dd-4ba9-a158-f3781c9d569e ro quiet splash vt.handoff=7

=================== os-prober:
/dev/sda5:L'OS actuellement utilisé - Ubuntu Focal Fossa (development branch) CurrentSession:linux
/dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi

=================== blkid:
/dev/sda7: UUID="9eb0b62d-a932-4de1-a3f5-be40200e5123" TYPE="swap" PARTUUID="11dedfb2-818f-475f-90cd-2da94e38357f"
/dev/sda5: UUID="7867687a-23dd-4ba9-a158-f3781c9d569e" TYPE="ext4" PARTUUID="8e8ca714-97e7-45a9-afd0-d9ee0c9499c1"
/dev/loop0: TYPE="squashfs"
/dev/loop1: TYPE="squashfs"
/dev/loop2: TYPE="squashfs"
/dev/loop3: TYPE="squashfs"
/dev/loop4: TYPE="squashfs"
/dev/loop5: TYPE="squashfs"
/dev/loop6: TYPE="squashfs"
/dev/loop7: TYPE="squashfs"
/dev/sda1: LABEL="RM-CM-)cupM-CM-)ration" UUID="72E8CBBEE8CB7EBB" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="07380664-6dd4-4925-aeac-a435b34ad9f5"
/dev/sda2: UUID="C4D1-8AAE" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="1ab7abb3-31e4-4289-9a3a-587ac6546242"
/dev/sda4: UUID="B606ECD606EC989F" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="63728c63-f8c6-4f3b-8882-3688c4f80734"
/dev/sda6: UUID="5c83c06b-be67-4270-80bb-3ee816fc5788" TYPE="ext4" PARTUUID="887c27c8-878d-4241-9ee8-e23d01b4b371"
/dev/sdb1: LABEL="images_win10_EFI" UUID="6c14aa5c-a67b-4211-afd2-42ff350e60b0" TYPE="ext4" PARTUUID="52caac94-01"
/dev/loop8: TYPE="squashfs"
/dev/loop9: TYPE="squashfs"
/dev/loop10: TYPE="squashfs"
/dev/loop11: TYPE="squashfs"
/dev/loop12: TYPE="squashfs"
/dev/loop13: TYPE="squashfs"
/dev/sda3: PARTLABEL="Microsoft reserved partition" PARTUUID="c21c3b27-c875-4428-a0d8-0c431338197b"


1 disks with OS, 2 OS : 1 Linux, 0 MacOS, 1 Windows, 0 unknown type OS.

Windows not detected by os-prober on sda4.

=================== /etc/grub.d/ :
drwxr-xr-x  2 root root    4096 mars  23 08:59 grub.d
drwxr-xr-x  2 root root    4096 mars  23 08:54 grub.d.bak
total 128
-rwxr-xr-x 1 root root 10627 mars  11 17:46 00_header
-rwxr-xr-x 1 root root  6258 mars  11 17:46 05_debian_theme
-rwxr-xr-x 1 root root 17123 mars  11 17:46 10_linux
-rwxr-xr-x 1 root root 38596 mars  11 17:46 10_linux_zfs
-rwxr-xr-x 1 root root 12894 mars  11 17:46 20_linux_xen
-rwxr-xr-x 1 root root   833 mars  23 08:59 25_custom
-rwxr-xr-x 1 root root 12059 mars  11 17:46 30_os-prober
-rwxr-xr-x 1 root root  1424 mars  11 17:46 30_uefi-firmware
-rwxr-xr-x 1 root root   214 mars  11 17:46 40_custom
-rwxr-xr-x 1 root root   216 mars  11 17:46 41_custom
-rw-r--r-- 1 root root   483 mars  11 17:46 README




=================== /etc/default/grub :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"



/boot/efi detected in the fstab of sda5: UUID=C4D1-8AAE	 (sda2)
Presence of EFI/Microsoft file detected: /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /boot/efi/EFI/Boot/bkpbootx64.efi
Presence of EFI/Boot file detected: /boot/efi/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /boot/efi/EFI/Boot/fbx64.efi
Presence of EFI/Boot file detected: /boot/efi/EFI/Boot/grubx64.efi
Presence of EFI/Boot file detected: /boot/efi/EFI/Boot/mmx64.efi
Presence of bkp file detected: /boot/efi/EFI/BOOT/bkpbootx64.efi
ls /sys/firmware/efi/vars : Test1-e660597e-b94d-4209-9c80-1805b5d19b69,Test0-e660597e-b94d-4209-9c80-1805b5d19b69,RTC-378d7b65-8da9-4773-b6e4-a47826a833e1,PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c,OsIndicationsSupported-8be4df61-93ca-11d2-aa0d-00e098032b8c,new_var,MTC-eb704011-1402-11d3-8e77-00a0c969723b,MokListRT-605dab50-e046-4300-abb6-3dd810dd8b23,MemoryTypeInformation-4c19049f-4137-4dd3-9c10-8b97a83ffdfa,LangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c,Lang-8be4df61-93ca-11d2-aa0d-00e098032b8c,HDDP-fab7e9e1-39dd-4f2b-8408-e20e906cb6de,FirmwareFeaturesMask-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,FirmwareFeatures-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,del_var,ConOutDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConOut-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConInDev-8be4df61-93ca-11d2-aa0d-00e098032b8c,ConIn-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootOptionSupport-8be4df61-93ca-11d2-aa0d-00e098032b8c,BootCurrent-8be4df61-93ca-11d2-aa0d-00e098032b8c,boot-args-7c436110-ab2a-4bbb-a880-fe41995c9f82,Boot0004-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0003-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0002-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0001-8be4df61-93ca-11d2-aa0d-00e098032b8c,Boot0000-8be4df61-93ca-11d2-aa0d-00e098032b8c,BackgroundClear-4d1ede05-38c7-4a6a-9cc6-4bcca8b38c14,
Veuillez indiquer ce message à boot.repair@gmail.com

=================== efibootmgr -v
BootCurrent: 0004
BootOrder: 0004,0000,0001,0002,0003
Boot0000* EFI DVD/CDROM	PciRoot(0x0)/Pci(0xd,0x0)/Sata(1,0,0)
Boot0001* EFI Hard Drive	PciRoot(0x0)/Pci(0xd,0x0)/Sata(0,0,0)
Boot0002* EFI Hard Drive 1	PciRoot(0x0)/Pci(0xd,0x0)/Sata(2,0,0)
Boot0003* EFI Internal Shell	MemoryMapped(11,0x2100000,0x28fffff)/FvFile(7c04a583-9e3e-4f1c-ad65-e05268d0b4d1)
Boot0004* ubuntu	HD(2,GPT,1ab7abb3-31e4-4289-9a3a-587ac6546242,0xe1800,0x31800)/File(EFIubuntushimx64.efi)

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this installed-session.
SecureBoot maybe enabled. (maybe sec-boot, Veuillez indiquer ce message à boot.repair@gmail.com)


=================== PARTITIONS & DISKS:
sda5	: sda,	not-sepboot,	grubenv-ok	grub2,	signed grub-efi ,	update-grub,	64,	with-boot,	is-os,	not--efi--part,	fstab-without-boot,	fstab-has-goodEFI,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	apt-get,	grub-install,	with--usr,	fstab-without-usr,	not-sep-usr,	standard,	not-far,	notbiosboot, .
sda1	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	recovery-or-hidden,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda1.
sda2	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	is-correct-EFI,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /boot/efi.
sda4	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	is-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	haswinload,	no-recov-nor-hid,	bootmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda4.
sda6	: sda,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /home.
sdb1	: sdb,	maybesepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sdb1.

sda	: GPT,	no-BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes
sdb	: not-GPT,	BIOSboot-not-needed,	has-no-EFIpart, 	not-usb,	not-mmc, no-os,	2048 sectors * 512 bytes


=================== parted -lm:

BYT;
/dev/sda:43.3GB:scsi:512:512:gpt:ATA VBOX HARDDISK:;
1:1049kB:473MB:472MB:ntfs:Basic data partition:diag;
2:473MB:577MB:104MB:fat32:EFI system partition:boot, esp;
3:577MB:593MB:16.8MB::Microsoft reserved partition:boot, esp;
4:593MB:25.9GB:25.3GB:ntfs:Basic data partition:msftdata;
5:25.9GB:40.3GB:14.4GB:ext4::;
6:40.3GB:42.3GB:2001MB:ext4::;
7:42.3GB:43.3GB:999MB:linux-swap(v1)::swap;

BYT;
/dev/sdb:34.4GB:scsi:512:512:msdos:ATA VBOX HARDDISK:;
1:1049kB:34.4GB:34.4GB:ext4::;

=================== lsblk:
KNAME  TYPE FSTYPE     SIZE LABEL
loop0  loop squashfs  91,3M
loop1  loop squashfs  91,4M
loop2  loop squashfs  54,6M
loop3  loop squashfs  54,7M
loop4  loop squashfs 140,7M
loop5  loop squashfs 140,7M
loop6  loop squashfs 156,7M
loop7  loop squashfs 160,2M
loop8  loop squashfs 221,4M
loop9  loop squashfs   3,7M
loop10 loop squashfs   3,7M
loop11 loop squashfs  44,2M
loop12 loop squashfs  44,9M
loop13 loop squashfs  47,8M
sda    disk           40,3G
sda1   part ntfs       450M Récupération
sda2   part vfat        99M
sda3   part             16M
sda4   part ntfs      23,6G
sda5   part ext4      13,4G
sda6   part ext4       1,9G
sda7   part swap       953M
sdb    disk             32G
sdb1   part ext4        32G images_win10_EFI
sr0    rom            1024M

KNAME  ROTA RO RM STATE   MOUNTPOINT
loop0     1  1  0         /snap/core/8592
loop1     1  1  0         /snap/core/8689
loop2     1  1  0         /snap/core18/1279
loop3     1  1  0         /snap/core18/1668
loop4     1  1  0         /snap/gnome-3-26-1604/92
loop5     1  1  0         /snap/gnome-3-26-1604/98
loop6     1  1  0         /snap/gnome-3-28-1804/110
loop7     1  1  0         /snap/gnome-3-28-1804/116
loop8     1  1  0         /snap/gnome-3-34-1804/21
loop9     1  1  0         /snap/gnome-system-monitor/127
loop10    1  1  0         /snap/gnome-system-monitor/135
loop11    1  1  0         /snap/gtk-common-themes/1353
loop12    1  1  0         /snap/gtk-common-themes/1440
loop13    1  1  0         /snap/snap-store/308
sda       1  0  0 running
sda1      1  0  0         /mnt/boot-sav/sda1
sda2      1  0  0         /boot/efi
sda3      1  0  0
sda4      1  0  0         /mnt/boot-sav/sda4
sda5      1  0  0         /
sda6      1  0  0         /home
sda7      1  0  0         [SWAP]
sdb       1  0  0 running
sdb1      1  0  0         /mnt/boot-sav/sdb1
sr0       1  0  1 running


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,noexec,relatime,size=989004k,nr_inodes=247251,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,relatime,size=203424k,mode=755)
/dev/sda5 on / type ext4 (rw,relatime,errors=remount-ro)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
none on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=27,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=15132)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
/var/lib/snapd/snaps/core_8592.snap on /snap/core/8592 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_8689.snap on /snap/core/8689 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core18_1668.snap on /snap/core18/1668 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core18_1279.snap on /snap/core18/1279 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-26-1604_92.snap on /snap/gnome-3-26-1604/92 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-26-1604_98.snap on /snap/gnome-3-26-1604/98 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-28-1804_110.snap on /snap/gnome-3-28-1804/110 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-28-1804_116.snap on /snap/gnome-3-28-1804/116 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-system-monitor_127.snap on /snap/gnome-system-monitor/127 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-34-1804_21.snap on /snap/gnome-3-34-1804/21 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-system-monitor_135.snap on /snap/gnome-system-monitor/135 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1353.snap on /snap/gtk-common-themes/1353 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/snap-store_308.snap on /snap/snap-store/308 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1440.snap on /snap/gtk-common-themes/1440 type squashfs (ro,nodev,relatime,x-gdu.hide)
/dev/sda2 on /boot/efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda6 on /home type ext4 (rw,relatime)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=203420k,mode=700,uid=1000,gid=1000)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
/dev/fuse on /run/user/1000/doc type fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
/dev/sda1 on /mnt/boot-sav/sda1 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda4 on /mnt/boot-sav/sda4 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sdb1 on /mnt/boot-sav/sdb1 type ext4 (rw,relatime)


=================== ls:
/sys/block/sda (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sda1 sda2 sda3 sda4 sda5 sda6 sda7 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/sys/block/sr0 (filtered):  alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity mq power queue range removable ro size slaves stat subsystem trace uevent
/dev (filtered):  autofs block bsg btrfs-control bus cdrom char console core cpu_dma_latency cuse disk dri dvd ecryptfs fb0 fd full fuse hidraw0 hpet hugepages hwrng i2c-0 initctl input kmsg lightnvm log mapper mcelog mem mqueue net null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda3 sda4 sda5 sda6 sda7 sdb sdb1 sg0 sg1 sg2 shm snapshot snd sr0 stderr stdin stdout udmabuf uhid uinput urandom userio vboxguest vboxuser vfio vga_arbiter vhci vhost-net vhost-vsock zero zfs
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff 0f 0e 00 00 00 00 00  |................|
00000030  00 96 00 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  bb 7e cb e8 be cb e8 72  |.........~.....r|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda2
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 02 0e 1a  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 18 0e 00  |........?.......|
00000020  00 18 03 00 f9 02 00 00  00 00 00 00 02 00 00 00  |................|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 01 29 ae 8a d1 c4 4e  4f 20 4e 41 4d 45 20 20  |..)....NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  88 56 40 88 4e 02 8a 56  |{......|.V@.N..V|
00000070  40 b4 41 bb aa 55 cd 13  72 10 81 fb 55 aa 75 0a  |@.A..U..r...U.u.|
00000080  f6 c1 01 74 05 fe 46 02  eb 2d 8a 56 40 b4 08 cd  |...t..F..-.V@...|
00000090  13 73 05 b9 ff ff 8a f1  66 0f b6 c6 40 66 0f b6  |.s......f...@f..|
000000a0  d1 80 e2 3f f7 e2 86 cd  c0 ed 06 41 66 0f b7 c9  |...?.......Af...|
000000b0  66 f7 e1 66 89 46 f8 83  7e 16 00 75 39 83 7e 2a  |f..f.F..~..u9.~*|
000000c0  00 77 33 66 8b 46 1c 66  83 c0 0c bb 00 80 b9 01  |.w3f.F.f........|
000000d0  00 e8 2c 00 e9 a8 03 a1  f8 7d 80 c4 7c 8b f0 ac  |..,......}..|...|
000000e0  84 c0 74 17 3c ff 74 09  b4 0e bb 07 00 cd 10 eb  |..t.<.t.........|
000000f0  ee a1 fa 7d eb e4 a1 7d  80 eb df 98 cd 16 cd 19  |...}...}........|
00000100  66 60 80 7e 02 00 0f 84  20 00 66 6a 00 66 50 06  |f`.~.... .fj.fP.|
00000110  53 66 68 10 00 01 00 b4  42 8a 56 40 8b f4 cd 13  |Sfh.....B.V@....|
00000120  66 58 66 58 66 58 66 58  eb 33 66 3b 46 f8 72 03  |fXfXfXfX.3f;F.r.|
00000130  f9 eb 2a 66 33 d2 66 0f  b7 4e 18 66 f7 f1 fe c2  |..*f3.f..N.f....|
00000140  8a ca 66 8b d0 66 c1 ea  10 f7 76 1a 86 d6 8a 56  |..f..f....v....V|
00000150  40 8a e8 c0 e4 06 0a cc  b8 01 02 cd 13 66 61 0f  |@............fa.|
00000160  82 74 ff 81 c3 00 02 66  40 49 75 94 c3 42 4f 4f  |.t.....f@Iu..BOO|
00000170  54 4d 47 52 20 20 20 20  00 00 00 00 00 00 00 00  |TMGR    ........|
00000180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  00 00 00 00 00 00 00 00  00 00 00 00 0d 0a 45 72  |..............Er|
000001b0  72 2e 20 64 69 73 71 75  65 ff 0d 0a 50 72 65 73  |r. disque...Pres|
000001c0  73 65 7a 20 75 6e 65 20  74 6f 75 63 68 65 20 70  |sez une touche p|
000001d0  6f 75 72 20 72 65 64 82  6d 61 72 72 65 72 0d 0a  |our red.marrer..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 00 00  ac 01 ba 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda4
00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|
00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 b0 11 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ff f7 f2 02 00 00 00 00  |................|
00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|
00000040  f6 00 00 00 01 00 00 00  9f 98 ec 06 d6 ec 06 b6  |................|
00000050  00 00 00 00 fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|
00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|
00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|
00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|
00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|
000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|
000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|
000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|
000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|
000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|
000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|
00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|
00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|
00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|
00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|
00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|
00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|
00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|
00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|
00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 45 72 72 65  |............Erre|
00000190  75 72 20 6c 65 63 74 75  72 65 20 64 69 73 71 75  |ur lecture disqu|
000001a0  65 00 0d 0a 42 4f 4f 54  4d 47 52 20 63 6f 6d 70  |e...BOOTMGR comp|
000001b0  72 65 73 73 82 00 0d 0a  43 74 72 6c 2b 41 6c 74  |ress....Ctrl+Alt|
000001c0  2b 53 75 70 70 72 20 70  6f 75 72 20 72 65 64 82  |+Suppr pour red.|
000001d0  6d 61 72 72 65 72 0d 0a  00 73 74 61 72 74 0d 0a  |marrer...start..|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 8a 01  a2 01 b6 01 00 00 55 aa  |..............U.|
00000200

=================== df -Th:

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  966M     0  966M   0% /dev
tmpfs          tmpfs     199M  1.4M  198M   1% /run
/dev/sda5      ext4       14G  7.2G  5.3G  58% /
tmpfs          tmpfs     994M   16M  978M   2% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     994M     0  994M   0% /sys/fs/cgroup
/dev/loop0     squashfs   92M   92M     0 100% /snap/core/8592
/dev/loop1     squashfs   92M   92M     0 100% /snap/core/8689
/dev/loop3     squashfs   55M   55M     0 100% /snap/core18/1668
/dev/loop2     squashfs   55M   55M     0 100% /snap/core18/1279
/dev/loop4     squashfs  141M  141M     0 100% /snap/gnome-3-26-1604/92
/dev/loop5     squashfs  141M  141M     0 100% /snap/gnome-3-26-1604/98
/dev/loop6     squashfs  157M  157M     0 100% /snap/gnome-3-28-1804/110
/dev/loop7     squashfs  161M  161M     0 100% /snap/gnome-3-28-1804/116
/dev/loop9     squashfs  3.8M  3.8M     0 100% /snap/gnome-system-monitor/127
/dev/loop8     squashfs  222M  222M     0 100% /snap/gnome-3-34-1804/21
/dev/loop10    squashfs  3.8M  3.8M     0 100% /snap/gnome-system-monitor/135
/dev/loop11    squashfs   45M   45M     0 100% /snap/gtk-common-themes/1353
/dev/loop13    squashfs   48M   48M     0 100% /snap/snap-store/308
/dev/loop12    squashfs   45M   45M     0 100% /snap/gtk-common-themes/1440
/dev/sda2      vfat       95M   70M   26M  74% /boot/efi
/dev/sda6      ext4      1.9G   73M  1.7G   5% /home
tmpfs          tmpfs     199M   24K  199M   1% /run/user/1000
/dev/sda1      fuseblk   450M  389M   62M  87% /mnt/boot-sav/sda1
/dev/sda4      fuseblk    24G   17G  7.3G  70% /mnt/boot-sav/sda4
/dev/sdb1      ext4       32G   16G   15G  53% /mnt/boot-sav/sdb1

=================== fdisk -l:
Disk /dev/loop0: 91.32 MiB, 95748096 bytes, 187008 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop1: 91.38 MiB, 95805440 bytes, 187120 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop2: 54.64 MiB, 57274368 bytes, 111864 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop3: 54.66 MiB, 57294848 bytes, 111904 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop4: 140.68 MiB, 147501056 bytes, 288088 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop5: 140.68 MiB, 147501056 bytes, 288088 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop6: 156.7 MiB, 164290560 bytes, 320880 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop7: 160.16 MiB, 167931904 bytes, 327992 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 40.33 GiB, 43294556160 bytes, 84559680 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 2530EA09-698D-4322-B791-29F4A072F62E

Device        Start      End  Sectors  Size Type
/dev/sda1      2048   923647   921600  450M Windows recovery environment
/dev/sda2    923648  1126399   202752   99M EFI System
/dev/sda3   1126400  1159167    32768   16M EFI System
/dev/sda4   1159168 50636799 49477632 23.6G Microsoft basic data
/dev/sda5  50636800 78698495 28061696 13.4G Linux filesystem
/dev/sda6  78698496 82606079  3907584  1.9G Linux filesystem
/dev/sda7  82606080 84557823  1951744  953M Linux swap




Disk /dev/sdb: 32 GiB, 34359738368 bytes, 67108864 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x52caac94

Device     Boot Start      End  Sectors Size Id Type
/dev/sdb1        2048 67108863 67106816  32G 83 Linux


Disk /dev/loop8: 221.4 MiB, 232148992 bytes, 453416 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop9: 3.66 MiB, 3825664 bytes, 7472 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop10: 3.7 MiB, 3862528 bytes, 7544 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop11: 44.18 MiB, 46325760 bytes, 90480 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop12: 44.9 MiB, 47063040 bytes, 91920 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop13: 47.82 MiB, 50126848 bytes, 97904 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes




=================== Suggested repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda2/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file  restore-efi-backups


=================== Final advice in case of suggested repair
N'oubliez pas de régler votre BIOS pour qu'il amorce sur le fichier sda2/efi/.../grub*.efi !

Si votre ordinateur redémarre directement sur Windows, essayez de changer l'ordre de démarrage dans votre BIOS.
Si votre BIOS ne permet pas de changer l'ordre de démarrage, changez l'entrée de démarrage par défaut de l'amorceur Windows.
Par exemple, vous pouvez démarrer Windows, puis saisir la commande suivante dans une invite de commande en mode administrateur :
bcdedit /set {bootmgr} path \EFI\...\grub*.efi


=================== User settings
The settings chosen by the user will not act on the boot.




gawk  packages needed

Dans ce dernier Boot-info, on peut voir que grub-pc a disparu :

=================== PARTITIONS & DISKS:
sda5	: sda,	not-sepboot,	grubenv-ok	grub2,	signed grub-efi ,	

Moi ça me parait normal puisqu'il s'agit d'une installation en mode UEFI de Ubuntu mais il est à noter que dans une installation normale  - pas réparée par Boot-repair - de Ubuntu en mode UEFI, grub-pc fait partie des paquets installés "de base" bien qu'il ne serve à rien.

EDIT_3 : je change le titre de la discussion :

Essai Boot-repair version 4ppa74

qui devient :

[Résolu] anomalie de Boot-repair version 4ppa74

Dernière modification par malbo (Le 23/03/2020, à 12:11)

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#4 Le 23/03/2020, à 13:36

YannUbuntu

Re : [Résolu] anomalie de Boot-repair version 4ppa74

impec, merci pour la confirmation.


à consulter/améliorer: Guide du Débutant, Logiciels, Ecole, Travail, Maison

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