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#1 Le 22/01/2020, à 16:27

Aurélien10

Impossible d'accéder à mon Ubuntu 16.04 LTS installé en dual-boot

Bonjour à tous,

Je m'excuse d'avance si je n'ai pas le vocabulaire approprié.
Cela fait quelques temps que je travaille avec la version d'Ubuntu 16.04 LTS installée en dual-boot sur mon ACER ASPIRE E 15 (E5-575G-543V). J'ai donc sur la partition "sda1" Windows 10 et sur la partition "sda5" Linux 16.04 LTS.
Il se trouve que vendredi dernier, en travaillant sur Linux, ce dernier m'a proposé de faire la mise à jour de certains package (ros, mavros ...) et de certaines applications.
A la fin de ces mises à jours, il m'a demandé un redémarrage, ce que j'ai fais. Seulement ce dernier n'a pas redémarré sur la partition Linux mais sur la partition Windows ... et depuis ce jour impossible de lancer Ubuntu ...
C'est à dire qu'au démarrage j'appuis sur la touche F12 afin d'avoir accès aux différents boot et lorsque je sélectionne "Ubuntu" ce dernier lance quand même Windows.
Je n'ai même pas accès à Grub...
J'ai d'abord cru que c'était dû au fait que l'espace que j'avais réservé pour la partition Ubuntu était plein après les différentes mises à jour, seulement après avoir créé une clé bootable et avoir lancé "Essayer Ubuntu sans l'installer" j'ai pu voir qu'il me restait 6 Go sur les 30 Go que je lui avais réservé. Je peux également avoir accès aux différents dossiers présents dans la partition Ubuntu ...
J'ai réalisé un boot-info :

Boot Info Script 8f991e4 + Boot-Repair extra info      [Boot-Info 25oct2017]


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

 => No boot loader is installed in the MBR of /dev/sda.
 => Syslinux MBR (3.61-4.03) is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

    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/bootx64.efi 
                       /EFI/ubuntu/fwupx64.efi /EFI/ubuntu/grubx64.efi 
                       /EFI/ubuntu/mmx64.efi /EFI/ubuntu/shimx64.efi 
                       /EFI/Microsoft/Boot/bootmgfw.efi 
                       /EFI/Microsoft/Boot/bootmgr.efi 
                       /EFI/Microsoft/Boot/memtest.efi 
                       /EFI/OEM/Boot/bootmgfw.efi /EFI/OEM/Boot/bootmgr.efi 
                       /EFI/OEM/Boot/memtest.efi

sda2: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 
    Mounting failed:   mount: unknown filesystem type ''

sda3: __________________________________________________________________________

    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

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:        

sda5: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 16.04.6 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab /grub/i386-pc/core.img 
                       /boot/grub/i386-pc/core.img

sda6: __________________________________________________________________________

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

sdb1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  SYSLINUX 4.03 2010-10-22 ........>..sr>.......c..9...0...~.....~...f...M.f.f....f..0~....>E}.u......
    Boot sector info:  Syslinux looks at sector 3368016 of /dev/sdb1 for its 
                       second stage. SYSLINUX is installed in the  directory. 
                       No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /boot/grub/grub.cfg /syslinux.cfg /EFI/BOOT/mmx64.efi 
                       /ldlinux.sys

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

Drive: sda _____________________________________________________________________
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1 1,953,525,167 1,953,525,167  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048       206,847       204,800 EFI System partition
/dev/sda2               206,848       239,615        32,768 Microsoft Reserved Partition (Windows)
/dev/sda3               239,616 1,871,445,962 1,871,206,347 Data partition (Windows/Linux)
/dev/sda4      R  1,951,426,560 1,953,523,711     2,097,152 Windows Recovery Environment (Windows)
/dev/sda5         1,881,686,016 1,934,919,679    53,233,664 Data partition (Linux)
/dev/sda6         1,934,919,680 1,951,426,559    16,506,880 Swap partition (Linux)

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

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 14.4 GiB, 15479597056 bytes, 30233588 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    *             63    30,231,935    30,231,873   c W95 FAT32 (LBA)


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/sda1        D2AA-1B3B                              vfat       ESP
/dev/sda2                                                          
/dev/sda3        5EAAABFAAAABCCB9                       ntfs       Acer
/dev/sda4        16F8AE40F8AE1E4D                       ntfs       Recovery
/dev/sda5        e18f2451-2ae4-42db-9d6f-8218e001db75   ext4       
/dev/sda6        9ba72e2e-51d4-4251-afc1-6d0f5fcd5ac9   swap       
/dev/sdb1        A6C9-2E2F                              vfat       UUI

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

total 0
lrwxrwxrwx 1 root root  9 Jan 22  2020 ata-HL-DT-ST_DVDRAM_GUE1N_KXGG9UA5042 -> ../../sr0
lrwxrwxrwx 1 root root  9 Jan 22 14:16 ata-TOSHIBA_MQ01ABD100_X64OPB1GT -> ../../sda
lrwxrwxrwx 1 root root 10 Jan 22 14:16 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Jan 22 14:16 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jan 22 14:17 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Jan 22 14:17 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Jan 22 14:16 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Jan 22 14:16 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part6 -> ../../sda6
lrwxrwxrwx 1 root root  9 Jan 22 14:16 usb-Kingston_DataTraveler_2.0_60A44C3FAD9EF060398E23CB-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Jan 22 14:16 usb-Kingston_DataTraveler_2.0_60A44C3FAD9EF060398E23CB-0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root  9 Jan 22 14:16 wwn-0x5000039752d0177b -> ../../sda
lrwxrwxrwx 1 root root 10 Jan 22 14:16 wwn-0x5000039752d0177b-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Jan 22 14:16 wwn-0x5000039752d0177b-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jan 22 14:17 wwn-0x5000039752d0177b-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Jan 22 14:17 wwn-0x5000039752d0177b-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Jan 22 14:16 wwn-0x5000039752d0177b-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Jan 22 14:16 wwn-0x5000039752d0177b-part6 -> ../../sda6
lrwxrwxrwx 1 root root  9 Jan 22  2020 wwn-0x5001480000000000 -> ../../sr0

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

Device           Mount_Point              Type       Options

/dev/loop0       /rofs                    squashfs   (ro,noatime)
/dev/sdb1        /cdrom                   vfat       (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)


========================== sda1/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid e18f2451-2ae4-42db-9d6f-8218e001db75 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  e18f2451-2ae4-42db-9d6f-8218e001db75
else
  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
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=fr_FR
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=30
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=menu
    set timeout=10
  # Fallback normal timeout code in case the timeout_style feature is
  # unavailable.
  else
    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=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-e18f2451-2ae4-42db-9d6f-8218e001db75' {
	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  e18f2451-2ae4-42db-9d6f-8218e001db75
	else
	  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
	fi
        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-4.15.0-74-generic
}
submenu 'Options avancées pour Ubuntu' $menuentry_id_option 'gnulinux-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
	menuentry 'Ubuntu, avec Linux 4.15.0-74-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-74-generic-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-74-generic…'
	        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-74-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-74-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-74-generic-init-upstart-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-74-generic…'
	        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-74-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-74-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-74-generic-recovery-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-74-generic…'
	        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro recovery nomodeset 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-74-generic
	}
	menuentry 'Ubuntu, avec Linux 4.15.0-46-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-46-generic-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-46-generic…'
	        linux	/boot/vmlinuz-4.15.0-46-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-46-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-46-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-46-generic-init-upstart-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-46-generic…'
	        linux	/boot/vmlinuz-4.15.0-46-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-46-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-46-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-46-generic-recovery-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-46-generic…'
	        linux	/boot/vmlinuz-4.15.0-46-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro recovery nomodeset 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-46-generic
	}
	menuentry 'Ubuntu, avec Linux 4.4.0-171-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-171-generic-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.4.0-171-generic…'
	        linux	/boot/vmlinuz-4.4.0-171-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.4.0-171-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-171-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-171-generic-init-upstart-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.4.0-171-generic…'
	        linux	/boot/vmlinuz-4.4.0-171-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.4.0-171-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-171-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-171-generic-recovery-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.4.0-171-generic…'
	        linux	/boot/vmlinuz-4.4.0-171-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro recovery nomodeset 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.4.0-171-generic
	}
	menuentry 'Ubuntu, avec Linux 4.4.0-142-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-142-generic-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.4.0-142-generic…'
		linux	/boot/vmlinuz-4.4.0-142-generic.efi.signed root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.4.0-142-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-142-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-142-generic-init-upstart-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.4.0-142-generic…'
		linux	/boot/vmlinuz-4.4.0-142-generic.efi.signed root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.4.0-142-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-142-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-142-generic-recovery-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.4.0-142-generic…'
		linux	/boot/vmlinuz-4.4.0-142-generic.efi.signed root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro recovery nomodeset 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.4.0-142-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/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (sur /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-efi-D2AA-1B3B' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt1'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  D2AA-1B3B
	else
	  search --no-floppy --fs-uuid --set=root D2AA-1B3B
	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=e18f2451-2ae4-42db-9d6f-8218e001db75 /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda1 during installation
UUID=D2AA-1B3B  /boot/efi       vfat    umask=0077      0       1
# swap was on /dev/sda6 during installation
UUID=9ba72e2e-51d4-4251-afc1-6d0f5fcd5ac9 none            swap    sw              0       0
--------------------------------------------------------------------------------

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

           GiB - GB             File                                 Fragment(s)

 919.742408752 = 987.565891584  boot/grub/grub.cfg                             1
 917.905361176 = 985.593376768  grub/i386-pc/core.img                          1
 907.512954712 = 974.434615296  boot/grub/i386-pc/core.img                     1
 898.640377045 = 964.907757568  boot/vmlinuz-4.15.0-46-generic                 1
 920.716072083 = 988.611354624  boot/vmlinuz-4.15.0-74-generic                 1
 908.471107483 = 975.463424000  boot/vmlinuz-4.4.0-142-generic                 1
 907.534034729 = 974.457249792  boot/vmlinuz-4.4.0-142-generic.efi.signed      1
 920.514526367 = 988.394946560  boot/vmlinuz-4.4.0-171-generic                 1
 920.716072083 = 988.611354624  vmlinuz                                        1
 920.514526367 = 988.394946560  vmlinuz.old                                    1
 922.373977661 = 990.391517184  boot/initrd.img-4.15.0-46-generic              2
 922.513019562 = 990.540812288  boot/initrd.img-4.15.0-74-generic              3
 921.306076050 = 989.244866560  boot/initrd.img-4.4.0-142-generic              3
 922.460494995 = 990.484414464  boot/initrd.img-4.4.0-171-generic              3
 922.513019562 = 990.540812288  initrd.img                                     3

=========================== sdb1/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------

if loadfont /boot/grub/font.pf2 ; then
	set gfxmode=auto
	insmod efi_gop
	insmod efi_uga
	insmod gfxterm
	terminal_output gfxterm
fi

set menu_color_normal=white/black
set menu_color_highlight=black/light-gray

menuentry "Try Ubuntu without installing" {
	set gfxpayload=keep
	linux	/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
	initrd	/casper/initrd
}
menuentry "Install Ubuntu" {
	set gfxpayload=keep
	linux	/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
	initrd	/casper/initrd
}
menuentry "OEM install (for manufacturers)" {
	set gfxpayload=keep
	linux	/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash oem-config/enable=true ---
	initrd	/casper/initrd
}
menuentry "Check disc for defects" {
	set gfxpayload=keep
	linux	/casper/vmlinuz  boot=casper integrity-check quiet splash ---
	initrd	/casper/initrd
}
--------------------------------------------------------------------------------

============================== sdb1/syslinux.cfg: ==============================

--------------------------------------------------------------------------------
default menu.c32
prompt 0
menu title UNetbootin
timeout 100

label unetbootindefault
menu label Default
kernel /ubnkern
append initrd=/ubninit file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---

label ubnentry0
menu label ^Help
kernel /ubnkern
append initrd=/ubninit 

label ubnentry1
menu label ^Try Ubuntu without installing
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/ubuntu.seed boot=casper  quiet splash ---

label ubnentry2
menu label ^Install Ubuntu
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity  quiet splash ---

label ubnentry3
menu label ^Check disc for defects
kernel /casper/vmlinuz
append initrd=/casper/initrd boot=casper integrity-check  quiet splash ---

label ubnentry4
menu label Test ^memory
kernel /install/mt86plus
append initrd=/ubninit 

label ubnentry5
menu label ^Boot from first hard disk
kernel /ubnkern
append initrd=/ubninit 

label ubnentry6
menu label Try Ubuntu without installing
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---

label ubnentry7
menu label Install Ubuntu
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---

label ubnentry8
menu label OEM install (for manufacturers)
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash oem-config/enable=true ---

label ubnentry9
menu label Check disc for defects
kernel /casper/vmlinuz
append initrd=/casper/initrd boot=casper integrity-check quiet splash ---

--------------------------------------------------------------------------------

=================== sdb1: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

            ?? = ??             boot/grub/grub.cfg                             1

================= sdb1: Location of files loaded by Syslinux: ==================

           GiB - GB             File                                 Fragment(s)

            ?? = ??             syslinux.cfg                                   1
            ?? = ??             ldlinux.sys                                    1
            ?? = ??             menu.c32                                       1

============== sdb1: Version of COM32(R) files used by Syslinux: ===============

 menu.c32                           :  COM32R module (v4.xx)

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

File descriptor 9 (/proc/5216/mounts) leaked on lvs invocation. Parent PID 15169: bash
File descriptor 63 (pipe:[40454]) leaked on lvs invocation. Parent PID 15169: bash

ADDITIONAL INFORMATION :
=================== log of boot-info 20200122_1416 ===================
boot-info version : 4ppa66
boot-sav version : 4ppa66
boot-sav-extra version : 4ppa66
glade2script version : 3.2.3~ppa4
Warning: failed to translate partition name
boot-info is executed in live-session (Ubuntu 16.04.6 LTS, xenial, 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/sda1@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
/dev/sda5:Ubuntu 16.04.6 LTS (16.04):Ubuntu:linux

=================== blkid:
/dev/sda1: LABEL="ESP" UUID="D2AA-1B3B" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="f6ffcce8-5593-4ed5-b081-af377a5a681f"
/dev/sda3: LABEL="Acer" UUID="5EAAABFAAAABCCB9" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="84d9eafd-5b4c-4ff0-805d-87a8aead94db"
/dev/sda4: LABEL="Recovery" UUID="16F8AE40F8AE1E4D" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="a9d05afc-426f-49e3-97ec-81902aacc995"
/dev/sda5: UUID="e18f2451-2ae4-42db-9d6f-8218e001db75" TYPE="ext4" PARTUUID="ffab8080-0843-4827-86d5-6a3415ebd54f"
/dev/sdb1: LABEL="UUI" UUID="A6C9-2E2F" TYPE="vfat" PARTUUID="013c0ef6-01"
/dev/loop0: TYPE="squashfs"
/dev/sda6: UUID="9ba72e2e-51d4-4251-afc1-6d0f5fcd5ac9" TYPE="swap" PARTUUID="b9702e91-fce2-40b5-ad82-dff4bc8408be"
/dev/sda2: PARTLABEL="Microsoft reserved partition" PARTUUID="2e8c1f81-70d2-47ba-810f-24dac315b840"


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

Windows not detected by os-prober on sda3.
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda1/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda1/EFI/Boot/bootx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root     4096 Jan 17 09:16 grub.d
total 80
-rwxr-xr-x 1 root root  9791 Apr 15  2016 00_header
-rwxr-xr-x 1 root root  6258 Mar 15  2016 05_debian_theme
-rwxr-xr-x 1 root root 12512 Nov 28  2018 10_linux
-rwxr-xr-x 1 root root 11082 Apr 15  2016 20_linux_xen
-rwxr-xr-x 1 root root  1992 Jan 28  2016 20_memtest86+
-rwxr-xr-x 1 root root 11692 Apr 15  2016 30_os-prober
-rwxr-xr-x 1 root root  1418 Apr 15  2016 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Apr 15  2016 40_custom
-rwxr-xr-x 1 root root   216 Apr 15  2016 41_custom
-rw-r--r-- 1 root root   483 Apr 15  2016 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_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
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=D2AA-1B3B   (sda1)

=================== efibootmgr -v
BootCurrent: 0001
Timeout: 0 seconds
BootOrder: 2001,0003,0004,0002,2002,2003
Boot0000* Unknown Device: 	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntushimx64.efi)RC
Boot0001* USB HDD: KingstonDataTraveler 2.0	PciRoot(0x0)/Pci(0x14,0x0)/USB(1,0)/HD(1,MBR,0x4294967286,0x3f,0x1cd4d41)RC
Boot0002* ubuntu	PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..
Boot0003* Windows Boot Manager	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIMicrosoftBootbootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...`................
Boot0004* Ubuntu	PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..
Boot2001* EFI USB Device	RC
Boot2002* EFI DVD/CDROM	RC
Boot2003* EFI Network	RC

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot enabled.


=================== PARTITIONS & DISKS:
sda1	: 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/sda1.
sda3	: 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,	farbios,	notbiosboot, /mnt/boot-sav/sda3.
sda4	: 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,	farbios,	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,	farbios,	notbiosboot, /mnt/boot-sav/sda5.

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


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

BYT;
/dev/sda:1000GB:scsi:512:4096:gpt:ATA TOSHIBA MQ01ABD1:;
1:1049kB:106MB:105MB:fat32:EFI system partition:boot, esp;
2:106MB:123MB:16.8MB::Microsoft reserved partition:msftres;
3:123MB:958GB:958GB:ntfs:Basic data partition:msftdata;
5:963GB:991GB:27.3GB:ext4::;
6:991GB:999GB:8452MB:linux-swap(v1)::;
4:999GB:1000GB:1074MB:ntfs::hidden, diag;

BYT;
/dev/sdb:15.5GB:scsi:512:512:msdos:Kingston DataTraveler 2.0:;
1:32.3kB:15.5GB:15.5GB:fat32::boot, lba;

=================== lsblk:
KNAME TYPE FSTYPE     SIZE LABEL
sdb   disk           14.4G
sdb1  part vfat      14.4G UUI
sr0   rom            1024M
loop0 loop squashfs   1.5G
sda   disk          931.5G
sda4  part ntfs         1G Recovery
sda2  part             16M
sda5  part ext4      25.4G
sda3  part ntfs     892.3G Acer
sda1  part vfat       100M ESP
sda6  part swap       7.9G

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


=================== 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=3996076k,nr_inodes=999019,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=803272k,mode=755)
/dev/sdb1 on /cdrom type vfat (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/loop0 on /rofs type squashfs (ro,noatime)
aufs on / type aufs (rw,noatime,si=1ca4e229a59feeef)
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/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,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/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
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)
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/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/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/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=35,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=13690)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
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=803272k,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/sda1 on /mnt/boot-sav/sda1 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda3 on /mnt/boot-sav/sda3 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/sda5 on /mnt/boot-sav/sda5 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 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 cdrw char console core cpu cpu_dma_latency cuse disk dri drm_dp_aux0 drm_dp_aux1 dvd dvdrw ecryptfs fb0 fd full fuse hidraw0 hidraw1 hidraw2 hpet hugepages hwrng i2c-0 i2c-1 i2c-10 i2c-11 i2c-12 i2c-13 i2c-14 i2c-15 i2c-16 i2c-17 i2c-2 i2c-3 i2c-4 i2c-5 i2c-6 i2c-7 i2c-8 i2c-9 initctl input kmsg kvm lightnvm log mapper mcelog media0 mei0 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 sdb sdb1 sg0 sg1 sg2 shm snapshot snd sr0 stderr stdin stdout tpm0 tpmrm0 uhid uinput urandom usb userio v4l vfio vga_arbiter vhci vhost-net vhost-vsock video0 zero
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 02 fe 19  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 20 03 00 01 03 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 3b 1b aa d2 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 44 69  |..............Di|
000001b0  73 6b 20 65 72 72 6f 72  ff 0d 0a 50 72 65 73 73  |sk error...Press|
000001c0  20 61 6e 79 20 6b 65 79  20 74 6f 20 72 65 73 74  | any key to rest|
000001d0  61 72 74 0d 0a 00 00 00  00 00 00 00 00 00 00 00  |art.............|
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 b9 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda3
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 a8 03 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ca 57 88 6f 00 00 00 00  |.........W.o....|
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  b9 cc ab aa fa ab aa 5e  |...............^|
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 41 20 64 69  |............A di|
00000190  73 6b 20 72 65 61 64 20  65 72 72 6f 72 20 6f 63  |sk read error oc|
000001a0  63 75 72 72 65 64 00 0d  0a 42 4f 4f 54 4d 47 52  |curred...BOOTMGR|
000001b0  20 69 73 20 63 6f 6d 70  72 65 73 73 65 64 00 0d  | is compressed..|
000001c0  0a 50 72 65 73 73 20 43  74 72 6c 2b 41 6c 74 2b  |.Press Ctrl+Alt+|
000001d0  44 65 6c 20 74 6f 20 72  65 73 74 61 72 74 0d 0a  |Del to restart..|
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  a7 01 bf 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 68 50 74  |........?....hPt|
00000020  00 00 00 00 80 00 80 00  ff ff 1f 00 00 00 00 00  |................|
00000030  55 55 01 00 00 00 00 00  02 00 00 00 00 00 00 00  |UU..............|
00000040  f6 00 00 00 01 00 00 00  4d 1e ae f8 40 ae f8 16  |........M...@...|
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 41 20 64 69  |............A di|
00000190  73 6b 20 72 65 61 64 20  65 72 72 6f 72 20 6f 63  |sk read error oc|
000001a0  63 75 72 72 65 64 00 0d  0a 42 4f 4f 54 4d 47 52  |curred...BOOTMGR|
000001b0  20 69 73 20 63 6f 6d 70  72 65 73 73 65 64 00 0d  | is compressed..|
000001c0  0a 50 72 65 73 73 20 43  74 72 6c 2b 41 6c 74 2b  |.Press Ctrl+Alt+|
000001d0  44 65 6c 20 74 6f 20 72  65 73 74 61 72 74 0d 0a  |Del to restart..|
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  a7 01 bf 01 00 00 55 aa  |..............U.|
00000200

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

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  3.9G     0  3.9G   0% /dev
tmpfs          tmpfs     785M  9.4M  776M   2% /run
/dev/sdb1      vfat       15G  1.6G   13G  12% /cdrom
/dev/loop0     squashfs  1.5G  1.5G     0 100% /rofs
aufs           aufs      3.9G   66M  3.8G   2% /
tmpfs          tmpfs     3.9G  172K  3.9G   1% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     3.9G     0  3.9G   0% /sys/fs/cgroup
tmpfs          tmpfs     3.9G   36K  3.9G   1% /tmp
tmpfs          tmpfs     785M   84K  785M   1% /run/user/999
/dev/sda1      vfat       96M   48M   49M  50% /mnt/boot-sav/sda1
/dev/sda3      fuseblk   893G  758G  136G  85% /mnt/boot-sav/sda3
/dev/sda4      fuseblk   1.0G  407M  618M  40% /mnt/boot-sav/sda4
/dev/sda5      ext4       25G   19G  5.3G  78% /mnt/boot-sav/sda5

=================== fdisk -l:
Disk /dev/loop0: 1.5 GiB, 1601015808 bytes, 3126984 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: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: C5D0AB67-CFD1-49DF-A9C2-60E008AFE3D9

Device          Start        End    Sectors   Size Type
/dev/sda1        2048     206847     204800   100M EFI System
/dev/sda2      206848     239615      32768    16M Microsoft reserved
/dev/sda3      239616 1871445962 1871206347 892.3G Microsoft basic data
/dev/sda4  1951426560 1953523711    2097152     1G Windows recovery environment
/dev/sda5  1881686016 1934919679   53233664  25.4G Linux filesystem
/dev/sda6  1934919680 1951426559   16506880   7.9G Linux swap

Partition table entries are not in disk order.




Disk /dev/sdb: 14.4 GiB, 15479597056 bytes, 30233588 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: 0x013c0ef6

Device     Boot Start      End  Sectors  Size Id Type
/dev/sdb1  *       63 30231935 30231873 14.4G  c W95 FAT32 (LBA)




=================== Suggested repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda1/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file


=================== Advice in case of suggested repair
Please disable SecureBoot in the BIOS. Then try again.Do you want to continue?


=================== Final advice in case of suggested repair
Please do not forget to make your BIOS boot on sda1/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 not act on the boot.

J'ai fais des recherches et il me semble pas que quelqu'un ait eu ce problème encore et je m'en excuse si je créé un double post.
Je n'ai sûrement pas tout précisé mais si jamais vous voulez plus d'informations demandez le moi.

Je vous remercie d'avance de vos réponses,

Cordialement, smile

Hors ligne

#2 Le 23/01/2020, à 09:30

malbo

Re : Impossible d'accéder à mon Ubuntu 16.04 LTS installé en dual-boot

Bonjour,
Tente de faire la "Réparation recommandée" de Boot-repair. Le descriptif de ce que devrait faire cette réparation recommandée est visible dans cet extrait du Boot-info : 

=================== Suggested repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda1/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file

Si après cette réparation, tu as toujours le symptôme que tu as mentionné plus haut : "au démarrage j’appuie sur la touche F12 afin d'avoir accès aux différents boot et lorsque je sélectionne "Ubuntu" ce dernier lance quand même Windows.", il faudra employer un autre moyen que je te proposerai le cas échéant.

Dernière modification par malbo (Le 23/01/2020, à 09:31)

Hors ligne

#3 Le 23/01/2020, à 17:31

Aurélien10

Re : Impossible d'accéder à mon Ubuntu 16.04 LTS installé en dual-boot

Bonjour Malbo,

Je tenais à te remercier énormément, il se trouve que mon problème a été résolu après avoir lancé le "boot-repair".
Voici le rapport après réparation :

Boot Info Script 8f991e4 + Boot-Repair extra info      [Boot-Info 25oct2017]


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

 => No boot loader is installed in the MBR of /dev/sda.
 => Syslinux MBR (3.61-4.03) is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

    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/ubuntu/fwupx64.efi 
                       /EFI/ubuntu/grubx64.efi /EFI/ubuntu/mmx64.efi 
                       /EFI/ubuntu/shimx64.efi 
                       /EFI/Microsoft/Boot/bootmgfw.efi 
                       /EFI/Microsoft/Boot/bootmgr.efi 
                       /EFI/Microsoft/Boot/memtest.efi 
                       /EFI/OEM/Boot/bootmgfw.efi /EFI/OEM/Boot/bootmgr.efi 
                       /EFI/OEM/Boot/memtest.efi

sda2: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 
    Mounting failed:   mount: unknown filesystem type ''

sda3: __________________________________________________________________________

    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

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:        

sda5: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 16.04.6 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab /grub/i386-pc/core.img 
                       /boot/grub/i386-pc/core.img

sda6: __________________________________________________________________________

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

sdb1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  SYSLINUX 4.03 2010-10-22 ........>..sr>.......c..9...0...~.....~...f...M.f.f....f..0~....>E}.u......
    Boot sector info:  Syslinux looks at sector 3368016 of /dev/sdb1 for its 
                       second stage. SYSLINUX is installed in the  directory. 
                       No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /boot/grub/grub.cfg /syslinux.cfg /EFI/BOOT/mmx64.efi 
                       /ldlinux.sys

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

Drive: sda _____________________________________________________________________
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1 1,953,525,167 1,953,525,167  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048       206,847       204,800 EFI System partition
/dev/sda2               206,848       239,615        32,768 Microsoft Reserved Partition (Windows)
/dev/sda3               239,616 1,871,445,962 1,871,206,347 Data partition (Windows/Linux)
/dev/sda4      R  1,951,426,560 1,953,523,711     2,097,152 Windows Recovery Environment (Windows)
/dev/sda5         1,881,686,016 1,934,919,679    53,233,664 Data partition (Linux)
/dev/sda6         1,934,919,680 1,951,426,559    16,506,880 Swap partition (Linux)

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

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 14.4 GiB, 15479597056 bytes, 30233588 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    *             63    30,231,935    30,231,873   c W95 FAT32 (LBA)


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/sda1        D2AA-1B3B                              vfat       ESP
/dev/sda2                                                          
/dev/sda3        5EAAABFAAAABCCB9                       ntfs       Acer
/dev/sda4        16F8AE40F8AE1E4D                       ntfs       Recovery
/dev/sda5        e18f2451-2ae4-42db-9d6f-8218e001db75   ext4       
/dev/sda6        9ba72e2e-51d4-4251-afc1-6d0f5fcd5ac9   swap       
/dev/sdb1        A6C9-2E2F                              vfat       UUI

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

total 0
lrwxrwxrwx 1 root root  9 Jan 23 15:10 ata-HL-DT-ST_DVDRAM_GUE1N_KXGG9UA5042 -> ../../sr0
lrwxrwxrwx 1 root root  9 Jan 23 15:14 ata-TOSHIBA_MQ01ABD100_X64OPB1GT -> ../../sda
lrwxrwxrwx 1 root root 10 Jan 23 15:14 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Jan 23 15:14 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jan 23 15:15 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Jan 23 15:15 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Jan 23 15:14 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Jan 23 15:14 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part6 -> ../../sda6
lrwxrwxrwx 1 root root  9 Jan 23 15:14 usb-Kingston_DataTraveler_2.0_60A44C3FAD9EF060398E23CB-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Jan 23 15:14 usb-Kingston_DataTraveler_2.0_60A44C3FAD9EF060398E23CB-0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root  9 Jan 23 15:14 wwn-0x5000039752d0177b -> ../../sda
lrwxrwxrwx 1 root root 10 Jan 23 15:14 wwn-0x5000039752d0177b-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Jan 23 15:14 wwn-0x5000039752d0177b-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jan 23 15:15 wwn-0x5000039752d0177b-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Jan 23 15:15 wwn-0x5000039752d0177b-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Jan 23 15:14 wwn-0x5000039752d0177b-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Jan 23 15:14 wwn-0x5000039752d0177b-part6 -> ../../sda6
lrwxrwxrwx 1 root root  9 Jan 23 15:10 wwn-0x5001480000000000 -> ../../sr0

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

Device           Mount_Point              Type       Options

/dev/loop0       /rofs                    squashfs   (ro,noatime)
/dev/sdb1        /cdrom                   vfat       (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)


========================== sda1/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid e18f2451-2ae4-42db-9d6f-8218e001db75 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  e18f2451-2ae4-42db-9d6f-8218e001db75
else
  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
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=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=10
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=menu
    set timeout=10
  # Fallback normal timeout code in case the timeout_style feature is
  # unavailable.
  else
    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=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-e18f2451-2ae4-42db-9d6f-8218e001db75' {
	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  e18f2451-2ae4-42db-9d6f-8218e001db75
	else
	  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
	fi
        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-4.15.0-74-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
	menuentry 'Ubuntu, with Linux 4.15.0-74-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-74-generic-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.15.0-74-generic ...'
	        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-74-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-74-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-74-generic-init-upstart-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.15.0-74-generic ...'
	        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-74-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-74-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-74-generic-recovery-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.15.0-74-generic ...'
	        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-74-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-46-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-46-generic-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.15.0-46-generic ...'
	        linux	/boot/vmlinuz-4.15.0-46-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-46-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-46-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-46-generic-init-upstart-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.15.0-46-generic ...'
	        linux	/boot/vmlinuz-4.15.0-46-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-46-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-46-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-46-generic-recovery-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.15.0-46-generic ...'
	        linux	/boot/vmlinuz-4.15.0-46-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.15.0-46-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-171-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-171-generic-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.4.0-171-generic ...'
	        linux	/boot/vmlinuz-4.4.0-171-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.4.0-171-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-171-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-171-generic-init-upstart-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.4.0-171-generic ...'
	        linux	/boot/vmlinuz-4.4.0-171-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.4.0-171-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-171-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-171-generic-recovery-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.4.0-171-generic ...'
	        linux	/boot/vmlinuz-4.4.0-171-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.4.0-171-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-142-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-142-generic-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.4.0-142-generic ...'
		linux	/boot/vmlinuz-4.4.0-142-generic.efi.signed root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.4.0-142-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-142-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-142-generic-init-upstart-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.4.0-142-generic ...'
		linux	/boot/vmlinuz-4.4.0-142-generic.efi.signed root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.4.0-142-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-142-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-142-generic-recovery-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Loading Linux 4.4.0-142-generic ...'
		linux	/boot/vmlinuz-4.4.0-142-generic.efi.signed root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro recovery nomodeset 
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-4.4.0-142-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/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###

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

menuentry "Windows UEFI bootmgfw.efi" {
search --fs-uuid --no-floppy --set=root D2AA-1B3B
chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}

menuentry "Windows Boot UEFI loader" {
search --fs-uuid --no-floppy --set=root D2AA-1B3B
chainloader (${root})/EFI/Boot/bkpbootx64.efi
}

menuentry "EFI/ubuntu/fwupx64.efi" {
search --fs-uuid --no-floppy --set=root D2AA-1B3B
chainloader (${root})/EFI/ubuntu/fwupx64.efi
}

menuentry "EFI/ubuntu/mmx64.efi" {
search --fs-uuid --no-floppy --set=root D2AA-1B3B
chainloader (${root})/EFI/ubuntu/mmx64.efi
}

menuentry "EFI/OEM/Boot/bootmgfw.efi" {
search --fs-uuid --no-floppy --set=root D2AA-1B3B
chainloader (${root})/EFI/OEM/Boot/bootmgfw.efi
}
### END /etc/grub.d/25_custom ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-efi-D2AA-1B3B' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt1'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  D2AA-1B3B
	else
	  search --no-floppy --fs-uuid --set=root D2AA-1B3B
	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=e18f2451-2ae4-42db-9d6f-8218e001db75 /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda1 during installation
#UUID=D2AA-1B3B  /boot/efi       vfat    umask=0077      0       1
# swap was on /dev/sda6 during installation
UUID=9ba72e2e-51d4-4251-afc1-6d0f5fcd5ac9 none            swap    sw              0       0
UUID=D2AA-1B3B	/boot/efi	vfat	defaults	0	1
--------------------------------------------------------------------------------

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

           GiB - GB             File                                 Fragment(s)

 917.405361176 = 985.056505856  boot/grub/grub.cfg                             1
 917.905361176 = 985.593376768  grub/i386-pc/core.img                          1
 907.512954712 = 974.434615296  boot/grub/i386-pc/core.img                     1
 898.640377045 = 964.907757568  boot/vmlinuz-4.15.0-46-generic                 1
 920.716072083 = 988.611354624  boot/vmlinuz-4.15.0-74-generic                 1
 908.471107483 = 975.463424000  boot/vmlinuz-4.4.0-142-generic                 1
 907.534034729 = 974.457249792  boot/vmlinuz-4.4.0-142-generic.efi.signed      1
 920.514526367 = 988.394946560  boot/vmlinuz-4.4.0-171-generic                 1
 920.716072083 = 988.611354624  vmlinuz                                        1
 920.514526367 = 988.394946560  vmlinuz.old                                    1
 922.373977661 = 990.391517184  boot/initrd.img-4.15.0-46-generic              2
 922.513019562 = 990.540812288  boot/initrd.img-4.15.0-74-generic              3
 921.306076050 = 989.244866560  boot/initrd.img-4.4.0-142-generic              3
 922.460494995 = 990.484414464  boot/initrd.img-4.4.0-171-generic              3
 922.513019562 = 990.540812288  initrd.img                                     3

=========================== sdb1/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------

if loadfont /boot/grub/font.pf2 ; then
	set gfxmode=auto
	insmod efi_gop
	insmod efi_uga
	insmod gfxterm
	terminal_output gfxterm
fi

set menu_color_normal=white/black
set menu_color_highlight=black/light-gray

menuentry "Try Ubuntu without installing" {
	set gfxpayload=keep
	linux	/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
	initrd	/casper/initrd
}
menuentry "Install Ubuntu" {
	set gfxpayload=keep
	linux	/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
	initrd	/casper/initrd
}
menuentry "OEM install (for manufacturers)" {
	set gfxpayload=keep
	linux	/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash oem-config/enable=true ---
	initrd	/casper/initrd
}
menuentry "Check disc for defects" {
	set gfxpayload=keep
	linux	/casper/vmlinuz  boot=casper integrity-check quiet splash ---
	initrd	/casper/initrd
}
--------------------------------------------------------------------------------

============================== sdb1/syslinux.cfg: ==============================

--------------------------------------------------------------------------------
default menu.c32
prompt 0
menu title UNetbootin
timeout 100

label unetbootindefault
menu label Default
kernel /ubnkern
append initrd=/ubninit file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---

label ubnentry0
menu label ^Help
kernel /ubnkern
append initrd=/ubninit 

label ubnentry1
menu label ^Try Ubuntu without installing
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/ubuntu.seed boot=casper  quiet splash ---

label ubnentry2
menu label ^Install Ubuntu
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity  quiet splash ---

label ubnentry3
menu label ^Check disc for defects
kernel /casper/vmlinuz
append initrd=/casper/initrd boot=casper integrity-check  quiet splash ---

label ubnentry4
menu label Test ^memory
kernel /install/mt86plus
append initrd=/ubninit 

label ubnentry5
menu label ^Boot from first hard disk
kernel /ubnkern
append initrd=/ubninit 

label ubnentry6
menu label Try Ubuntu without installing
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---

label ubnentry7
menu label Install Ubuntu
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---

label ubnentry8
menu label OEM install (for manufacturers)
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash oem-config/enable=true ---

label ubnentry9
menu label Check disc for defects
kernel /casper/vmlinuz
append initrd=/casper/initrd boot=casper integrity-check quiet splash ---

--------------------------------------------------------------------------------

=================== sdb1: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

            ?? = ??             boot/grub/grub.cfg                             1

================= sdb1: Location of files loaded by Syslinux: ==================

           GiB - GB             File                                 Fragment(s)

            ?? = ??             syslinux.cfg                                   1
            ?? = ??             ldlinux.sys                                    1
            ?? = ??             menu.c32                                       1

============== sdb1: Version of COM32(R) files used by Syslinux: ===============

 menu.c32                           :  COM32R module (v4.xx)

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

File descriptor 9 (/proc/5768/mounts) leaked on lvs invocation. Parent PID 19966: bash
File descriptor 63 (pipe:[45194]) leaked on lvs invocation. Parent PID 19966: bash

ADDITIONAL INFORMATION :
=================== log of boot-repair 20200123_1513 ===================
boot-repair version : 4ppa66
boot-sav version : 4ppa66
boot-sav-extra version : 4ppa66
glade2script version : 3.2.3~ppa4
Warning: failed to translate partition name
boot-repair is executed in live-session (Ubuntu 16.04.6 LTS, xenial, 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/sda1@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
/dev/sda5:Ubuntu 16.04.6 LTS (16.04):Ubuntu:linux

=================== blkid:
/dev/sda1: LABEL="ESP" UUID="D2AA-1B3B" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="f6ffcce8-5593-4ed5-b081-af377a5a681f"
/dev/sda3: LABEL="Acer" UUID="5EAAABFAAAABCCB9" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="84d9eafd-5b4c-4ff0-805d-87a8aead94db"
/dev/sda4: LABEL="Recovery" UUID="16F8AE40F8AE1E4D" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="a9d05afc-426f-49e3-97ec-81902aacc995"
/dev/sda5: UUID="e18f2451-2ae4-42db-9d6f-8218e001db75" TYPE="ext4" PARTUUID="ffab8080-0843-4827-86d5-6a3415ebd54f"
/dev/sdb1: LABEL="UUI" UUID="A6C9-2E2F" TYPE="vfat" PARTUUID="013c0ef6-01"
/dev/loop0: TYPE="squashfs"
/dev/sda6: UUID="9ba72e2e-51d4-4251-afc1-6d0f5fcd5ac9" TYPE="swap" PARTUUID="b9702e91-fce2-40b5-ad82-dff4bc8408be"
/dev/sda2: PARTLABEL="Microsoft reserved partition" PARTUUID="2e8c1f81-70d2-47ba-810f-24dac315b840"


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

Windows not detected by os-prober on sda3.
Presence of EFI/Microsoft file detected: /mnt/boot-sav/sda1/EFI/Microsoft/Boot/bootmgfw.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda1/EFI/Boot/bootx64.efi

=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root     4096 Jan 17 09:16 grub.d
total 80
-rwxr-xr-x 1 root root  9791 Apr 15  2016 00_header
-rwxr-xr-x 1 root root  6258 Mar 15  2016 05_debian_theme
-rwxr-xr-x 1 root root 12512 Nov 28  2018 10_linux
-rwxr-xr-x 1 root root 11082 Apr 15  2016 20_linux_xen
-rwxr-xr-x 1 root root  1992 Jan 28  2016 20_memtest86+
-rwxr-xr-x 1 root root 11692 Apr 15  2016 30_os-prober
-rwxr-xr-x 1 root root  1418 Apr 15  2016 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Apr 15  2016 40_custom
-rwxr-xr-x 1 root root   216 Apr 15  2016 41_custom
-rw-r--r-- 1 root root   483 Apr 15  2016 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_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
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=D2AA-1B3B   (sda1)

=================== efibootmgr -v
BootCurrent: 0001
Timeout: 0 seconds
BootOrder: 2001,0003,0004,0002,2002,2003
Boot0000* Unknown Device: 	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntushimx64.efi)RC
Boot0001* USB HDD: KingstonDataTraveler 2.0	PciRoot(0x0)/Pci(0x14,0x0)/USB(1,0)/HD(1,MBR,0x4294967286,0x3f,0x1cd4d41)RC
Boot0002* ubuntu	PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..
Boot0003* Windows Boot Manager	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIMicrosoftBootbootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...`................
Boot0004* Ubuntu	PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..
Boot2001* EFI USB Device	RC
Boot2002* EFI DVD/CDROM	RC
Boot2003* EFI Network	RC

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot disabled. (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,	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/sda1.
sda3	: 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,	farbios,	notbiosboot, /mnt/boot-sav/sda3.
sda4	: 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,	farbios,	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,	farbios,	notbiosboot, /mnt/boot-sav/sda5.

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


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

BYT;
/dev/sda:1000GB:scsi:512:4096:gpt:ATA TOSHIBA MQ01ABD1:;
1:1049kB:106MB:105MB:fat32:EFI system partition:boot, esp;
2:106MB:123MB:16.8MB::Microsoft reserved partition:msftres;
3:123MB:958GB:958GB:ntfs:Basic data partition:msftdata;
5:963GB:991GB:27.3GB:ext4::;
6:991GB:999GB:8452MB:linux-swap(v1)::;
4:999GB:1000GB:1074MB:ntfs::hidden, diag;

BYT;
/dev/sdb:15.5GB:scsi:512:512:msdos:Kingston DataTraveler 2.0:;
1:32.3kB:15.5GB:15.5GB:fat32::boot, lba;

=================== lsblk:
KNAME TYPE FSTYPE     SIZE LABEL
sdb   disk           14.4G
sdb1  part vfat      14.4G UUI
sr0   rom            1024M
loop0 loop squashfs   1.5G
sda   disk          931.5G
sda4  part ntfs         1G Recovery
sda2  part             16M
sda5  part ext4      25.4G
sda3  part ntfs     892.3G Acer
sda1  part vfat       100M ESP
sda6  part swap       7.9G

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


=================== 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=3996160k,nr_inodes=999040,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=803292k,mode=755)
/dev/sdb1 on /cdrom type vfat (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/loop0 on /rofs type squashfs (ro,noatime)
aufs on / type aufs (rw,noatime,si=2ba730a81695320e)
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/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,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/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
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/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
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)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=21,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=13611)
mqueue on /dev/mqueue type mqueue (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
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=803292k,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/sda1 on /mnt/boot-sav/sda1 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda3 on /mnt/boot-sav/sda3 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/sda5 on /mnt/boot-sav/sda5 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 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 cdrw char console core cpu cpu_dma_latency cuse disk dri drm_dp_aux0 drm_dp_aux1 dvd dvdrw ecryptfs fb0 fd full fuse hidraw0 hpet hugepages hwrng i2c-0 i2c-1 i2c-10 i2c-11 i2c-12 i2c-13 i2c-14 i2c-15 i2c-16 i2c-17 i2c-2 i2c-3 i2c-4 i2c-5 i2c-6 i2c-7 i2c-8 i2c-9 initctl input kmsg kvm lightnvm log mapper mcelog media0 mei0 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 sdb sdb1 sg0 sg1 sg2 shm snapshot snd sr0 stderr stdin stdout tpm0 tpmrm0 uhid uinput urandom userio v4l vfio vga_arbiter vhci vhost-net vhost-vsock video0 zero
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 02 fe 19  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 20 03 00 01 03 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 3b 1b aa d2 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 44 69  |..............Di|
000001b0  73 6b 20 65 72 72 6f 72  ff 0d 0a 50 72 65 73 73  |sk error...Press|
000001c0  20 61 6e 79 20 6b 65 79  20 74 6f 20 72 65 73 74  | any key to rest|
000001d0  61 72 74 0d 0a 00 00 00  00 00 00 00 00 00 00 00  |art.............|
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 b9 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda3
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 a8 03 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ca 57 88 6f 00 00 00 00  |.........W.o....|
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  b9 cc ab aa fa ab aa 5e  |...............^|
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 41 20 64 69  |............A di|
00000190  73 6b 20 72 65 61 64 20  65 72 72 6f 72 20 6f 63  |sk read error oc|
000001a0  63 75 72 72 65 64 00 0d  0a 42 4f 4f 54 4d 47 52  |curred...BOOTMGR|
000001b0  20 69 73 20 63 6f 6d 70  72 65 73 73 65 64 00 0d  | is compressed..|
000001c0  0a 50 72 65 73 73 20 43  74 72 6c 2b 41 6c 74 2b  |.Press Ctrl+Alt+|
000001d0  44 65 6c 20 74 6f 20 72  65 73 74 61 72 74 0d 0a  |Del to restart..|
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  a7 01 bf 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 68 50 74  |........?....hPt|
00000020  00 00 00 00 80 00 80 00  ff ff 1f 00 00 00 00 00  |................|
00000030  55 55 01 00 00 00 00 00  02 00 00 00 00 00 00 00  |UU..............|
00000040  f6 00 00 00 01 00 00 00  4d 1e ae f8 40 ae f8 16  |........M...@...|
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 41 20 64 69  |............A di|
00000190  73 6b 20 72 65 61 64 20  65 72 72 6f 72 20 6f 63  |sk read error oc|
000001a0  63 75 72 72 65 64 00 0d  0a 42 4f 4f 54 4d 47 52  |curred...BOOTMGR|
000001b0  20 69 73 20 63 6f 6d 70  72 65 73 73 65 64 00 0d  | is compressed..|
000001c0  0a 50 72 65 73 73 20 43  74 72 6c 2b 41 6c 74 2b  |.Press Ctrl+Alt+|
000001d0  44 65 6c 20 74 6f 20 72  65 73 74 61 72 74 0d 0a  |Del to restart..|
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  a7 01 bf 01 00 00 55 aa  |..............U.|
00000200

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

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  3.9G     0  3.9G   0% /dev
tmpfs          tmpfs     785M  9.4M  776M   2% /run
/dev/sdb1      vfat       15G  1.6G   13G  12% /cdrom
/dev/loop0     squashfs  1.5G  1.5G     0 100% /rofs
aufs           aufs      3.9G  106M  3.8G   3% /
tmpfs          tmpfs     3.9G   68M  3.8G   2% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     3.9G     0  3.9G   0% /sys/fs/cgroup
tmpfs          tmpfs     3.9G  652K  3.9G   1% /tmp
tmpfs          tmpfs     785M   88K  785M   1% /run/user/999
/dev/sda1      vfat       96M   48M   49M  50% /mnt/boot-sav/sda1
/dev/sda3      fuseblk   893G  758G  136G  85% /mnt/boot-sav/sda3
/dev/sda4      fuseblk   1.0G  407M  618M  40% /mnt/boot-sav/sda4
/dev/sda5      ext4       25G   19G  5.3G  78% /mnt/boot-sav/sda5

=================== fdisk -l:
Disk /dev/loop0: 1.5 GiB, 1601015808 bytes, 3126984 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: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: C5D0AB67-CFD1-49DF-A9C2-60E008AFE3D9

Device          Start        End    Sectors   Size Type
/dev/sda1        2048     206847     204800   100M EFI System
/dev/sda2      206848     239615      32768    16M Microsoft reserved
/dev/sda3      239616 1871445962 1871206347 892.3G Microsoft basic data
/dev/sda4  1951426560 1953523711    2097152     1G Windows recovery environment
/dev/sda5  1881686016 1934919679   53233664  25.4G Linux filesystem
/dev/sda6  1934919680 1951426559   16506880   7.9G Linux swap

Partition table entries are not in disk order.




Disk /dev/sdb: 14.4 GiB, 15479597056 bytes, 30233588 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: 0x013c0ef6

Device     Boot Start      End  Sectors  Size Id Type
/dev/sdb1  *       63 30231935 30231873 14.4G  c W95 FAT32 (LBA)




=================== 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:        sda1/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 sda1/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 reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda1/boot/efi,
Additional repair will be performed: unhide-bootmenu-10s   fix-windows-boot use-standard-efi-file


/boot/efi added in sda5/fstab
Quantity of real Windows: 1
Mount sda1 on /mnt/boot-sav/sda5/boot/efi
efi files in sda1/efi: /OEM/Boot/memtest.efi /OEM/Boot/bootmgr.efi /OEM/Boot/bootmgfw.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/bootx64.efi
lspci: Unable to load libkmod resources: error -12

*******lspci -nnk | grep -iA3 vga
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 620 [8086:5916] (rev 02)
Subsystem: Acer Incorporated [ALI] Device [1025:1094]
Kernel driver in use: i915
00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller [8086:9d2f] (rev 21)
*******

grub-install --version
grub-install (GRUB) 2.02~beta2-36ubuntu3.23,grub-install (GRUB) 2.

chroot /mnt/boot-sav/sda5 efibootmgr -v
BootCurrent: 0001
Timeout: 0 seconds
BootOrder: 2001,0003,0004,0002,2002,2003
Boot0000* Unknown Device: 	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntushimx64.efi)RC
Boot0001* USB HDD: KingstonDataTraveler 2.0	PciRoot(0x0)/Pci(0x14,0x0)/USB(1,0)/HD(1,MBR,0x4294967286,0x3f,0x1cd4d41)RC
Boot0002* ubuntu	PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..
Boot0003* Windows Boot Manager	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIMicrosoftBootbootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...`................
Boot0004* Ubuntu	PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..
Boot2001* EFI USB Device	RC
Boot2002* EFI DVD/CDROM	RC
Boot2003* EFI Network	RC

chroot /mnt/boot-sav/sda5 uname -r
Kernel: 4.15.0-45-generic

Reinstall the grub-efi-amd64-signed 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 sda1/efi: /OEM/Boot/memtest.efi /OEM/Boot/bootmgr.efi /OEM/Boot/bootmgfw.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/bootx64.efi
df /dev/sda1
Save and rename /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 sda1/efi: /OEM/Boot/memtest.efi /OEM/Boot/bootmgr.efi /OEM/Boot/bootmgfw.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/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
sda1/bkpbootx64.efi already added
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/fwupx64.efi
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/ubuntu/mmx64.efi
sda1/bootmgfw.efi already added
Adding custom /mnt/boot-sav/sda5/boot/efi/EFI/OEM/Boot/bootmgfw.efi
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: 0001
Timeout: 0 seconds
BootOrder: 0002,2001,0003,2002,2003
Boot0000* Unknown Device: 	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntushimx64.efi)RC
Boot0001* USB HDD: KingstonDataTraveler 2.0	PciRoot(0x0)/Pci(0x14,0x0)/USB(1,0)/HD(1,MBR,0x4294967286,0x3f,0x1cd4d41)RC
Boot0002* ubuntu	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntushimx64.efi)
Boot0003* Windows Boot Manager	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIMicrosoftBootbootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...`................
Boot2001* EFI USB Device	RC
Boot2002* EFI DVD/CDROM	RC
Boot2003* EFI Network	RC

chroot /mnt/boot-sav/sda5 update-grub
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.15.0-74-generic
Found initrd image: /boot/initrd.img-4.15.0-74-generic
Found linux image: /boot/vmlinuz-4.15.0-46-generic
Found initrd image: /boot/initrd.img-4.15.0-46-generic
Found linux image: /boot/vmlinuz-4.4.0-171-generic
Found initrd image: /boot/initrd.img-4.4.0-171-generic
Found linux image: /boot/vmlinuz-4.4.0-142-generic
Found initrd image: /boot/initrd.img-4.4.0-142-generic
Found Windows Boot Manager on /dev/sda1@/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 sda1/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

Cordialement, smile

Hors ligne

#4 Le 23/01/2020, à 17:44

malbo

Re : Impossible d'accéder à mon Ubuntu 16.04 LTS installé en dual-boot

Bonne nouvelle.
Cependant, j'ai du mal à juger du résultat final (*). Aussi je te prie de démarrer une session sur ton Ubuntu installé, faire un Boot-info depuis cette session et donner l'URL de ce Boot-info dans ta réponse (ou bien si tu préfères ça, tu peux en coller le contenu dans ta réponse puisque tu sais utiliser les balises)

(*) en particulier, je veux savoir sur quelle entrée UEFI ton Ubuntu démarre effectivement. On pourrait croire que c'est l'entrée "ubuntu" mais je n'en suis pas sûr du tout.

Dernière modification par malbo (Le 23/01/2020, à 17:48)

Hors ligne

#5 Le 24/01/2020, à 16:11

Aurélien10

Re : Impossible d'accéder à mon Ubuntu 16.04 LTS installé en dual-boot

Re bonjour Malbo,

J'ai exécuté un boot-info sur ma session d'Ubuntu comme tu me l'as conseillé, en voici le résultat :

Boot Info Script 8f991e4 + Boot-Repair extra info      [Boot-Info 25oct2017]


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

 => No boot loader is installed in the MBR of /dev/sda.

sda1: __________________________________________________________________________

    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/ubuntu/fwupx64.efi 
                       /EFI/ubuntu/grubx64.efi /EFI/ubuntu/mmx64.efi 
                       /EFI/ubuntu/shimx64.efi 
                       /EFI/Microsoft/Boot/bootmgfw.efi 
                       /EFI/Microsoft/Boot/bootmgr.efi 
                       /EFI/Microsoft/Boot/memtest.efi 
                       /EFI/OEM/Boot/bootmgfw.efi /EFI/OEM/Boot/bootmgr.efi 
                       /EFI/OEM/Boot/memtest.efi 
                       /boot-repair/log/20200123_151352/sda1/bootx64.efi

sda2: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 
    Mounting failed:   mount: unknown filesystem type ''

sda3: __________________________________________________________________________

    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

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:        

sda5: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 16.04.6 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab /grub/i386-pc/core.img 
                       /boot/grub/i386-pc/core.img

sda6: __________________________________________________________________________

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

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

Drive: sda _____________________________________________________________________
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1 1,953,525,167 1,953,525,167  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048       206,847       204,800 EFI System partition
/dev/sda2               206,848       239,615        32,768 Microsoft Reserved Partition (Windows)
/dev/sda3               239,616 1,871,445,962 1,871,206,347 Data partition (Windows/Linux)
/dev/sda4      R  1,951,426,560 1,953,523,711     2,097,152 Windows Recovery Environment (Windows)
/dev/sda5         1,881,686,016 1,934,919,679    53,233,664 Data partition (Linux)
/dev/sda6         1,934,919,680 1,951,426,559    16,506,880 Swap partition (Linux)

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

"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/loop1                                              squashfs   
/dev/loop2                                              squashfs   
/dev/sda1        D2AA-1B3B                              vfat       ESP
/dev/sda2                                                          
/dev/sda3        5EAAABFAAAABCCB9                       ntfs       Acer
/dev/sda4        16F8AE40F8AE1E4D                       ntfs       Recovery
/dev/sda5        e18f2451-2ae4-42db-9d6f-8218e001db75   ext4       
/dev/sda6        9ba72e2e-51d4-4251-afc1-6d0f5fcd5ac9   swap       

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

total 0
lrwxrwxrwx 1 root root  9 Jan 24 14:43 ata-HL-DT-ST_DVDRAM_GUE1N_KXGG9UA5042 -> ../../sr0
lrwxrwxrwx 1 root root  9 Jan 24 15:04 ata-TOSHIBA_MQ01ABD100_X64OPB1GT -> ../../sda
lrwxrwxrwx 1 root root 10 Jan 24 15:04 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Jan 24 15:04 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jan 24 15:04 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Jan 24 15:04 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Jan 24 15:04 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Jan 24 15:04 ata-TOSHIBA_MQ01ABD100_X64OPB1GT-part6 -> ../../sda6
lrwxrwxrwx 1 root root  9 Jan 24 15:04 wwn-0x5000039752d0177b -> ../../sda
lrwxrwxrwx 1 root root 10 Jan 24 15:04 wwn-0x5000039752d0177b-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Jan 24 15:04 wwn-0x5000039752d0177b-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jan 24 15:04 wwn-0x5000039752d0177b-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Jan 24 15:04 wwn-0x5000039752d0177b-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Jan 24 15:04 wwn-0x5000039752d0177b-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Jan 24 15:04 wwn-0x5000039752d0177b-part6 -> ../../sda6
lrwxrwxrwx 1 root root  9 Jan 24 14:43 wwn-0x5001480000000000 -> ../../sr0

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

Device           Mount_Point              Type       Options

/dev/sda1        /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,data=ordered)


========================== sda1/EFI/ubuntu/grub.cfg: ===========================

--------------------------------------------------------------------------------
search.fs_uuid e18f2451-2ae4-42db-9d6f-8218e001db75 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  e18f2451-2ae4-42db-9d6f-8218e001db75
else
  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
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=fr_FR
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=30
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=menu
    set timeout=10
  # Fallback normal timeout code in case the timeout_style feature is
  # unavailable.
  else
    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=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-e18f2451-2ae4-42db-9d6f-8218e001db75' {
	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  e18f2451-2ae4-42db-9d6f-8218e001db75
	else
	  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
	fi
        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-4.15.0-74-generic
}
submenu 'Options avancées pour Ubuntu' $menuentry_id_option 'gnulinux-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
	menuentry 'Ubuntu, avec Linux 4.15.0-74-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-74-generic-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-74-generic…'
	        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-74-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-74-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-74-generic-init-upstart-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-74-generic…'
	        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-74-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-74-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-74-generic-recovery-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-74-generic…'
	        linux	/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro recovery nomodeset 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-74-generic
	}
	menuentry 'Ubuntu, avec Linux 4.15.0-46-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-46-generic-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-46-generic…'
	        linux	/boot/vmlinuz-4.15.0-46-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-46-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-46-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-46-generic-init-upstart-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-46-generic…'
	        linux	/boot/vmlinuz-4.15.0-46-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-46-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-46-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-46-generic-recovery-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.15.0-46-generic…'
	        linux	/boot/vmlinuz-4.15.0-46-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro recovery nomodeset 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-46-generic
	}
	menuentry 'Ubuntu, avec Linux 4.4.0-171-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-171-generic-advanced-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.4.0-171-generic…'
	        linux	/boot/vmlinuz-4.4.0-171-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.4.0-171-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-171-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-171-generic-init-upstart-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.4.0-171-generic…'
	        linux	/boot/vmlinuz-4.4.0-171-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.4.0-171-generic
	}
	menuentry 'Ubuntu, with Linux 4.4.0-171-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-171-generic-recovery-e18f2451-2ae4-42db-9d6f-8218e001db75' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  e18f2451-2ae4-42db-9d6f-8218e001db75
		else
		  search --no-floppy --fs-uuid --set=root e18f2451-2ae4-42db-9d6f-8218e001db75
		fi
		echo	'Chargement de Linux 4.4.0-171-generic…'
	        linux	/boot/vmlinuz-4.4.0-171-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro recovery nomodeset 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.4.0-171-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/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###

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

menuentry "Windows UEFI bootmgfw.efi" {
search --fs-uuid --no-floppy --set=root D2AA-1B3B
chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}

menuentry "Windows Boot UEFI loader" {
search --fs-uuid --no-floppy --set=root D2AA-1B3B
chainloader (${root})/EFI/Boot/bkpbootx64.efi
}

menuentry "EFI/ubuntu/fwupx64.efi" {
search --fs-uuid --no-floppy --set=root D2AA-1B3B
chainloader (${root})/EFI/ubuntu/fwupx64.efi
}

menuentry "EFI/ubuntu/mmx64.efi" {
search --fs-uuid --no-floppy --set=root D2AA-1B3B
chainloader (${root})/EFI/ubuntu/mmx64.efi
}

menuentry "EFI/OEM/Boot/bootmgfw.efi" {
search --fs-uuid --no-floppy --set=root D2AA-1B3B
chainloader (${root})/EFI/OEM/Boot/bootmgfw.efi
}
### END /etc/grub.d/25_custom ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (sur /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-efi-D2AA-1B3B' {
	insmod part_gpt
	insmod fat
	set root='hd0,gpt1'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  D2AA-1B3B
	else
	  search --no-floppy --fs-uuid --set=root D2AA-1B3B
	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=e18f2451-2ae4-42db-9d6f-8218e001db75 /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda1 during installation
#UUID=D2AA-1B3B  /boot/efi       vfat    umask=0077      0       1
# swap was on /dev/sda6 during installation
UUID=9ba72e2e-51d4-4251-afc1-6d0f5fcd5ac9 none            swap    sw              0       0
UUID=D2AA-1B3B	/boot/efi	vfat	defaults	0	1
--------------------------------------------------------------------------------

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

           GiB - GB             File                                 Fragment(s)

 899.861614227 = 966.219051008  boot/grub/grub.cfg                             1
 917.905361176 = 985.593376768  grub/i386-pc/core.img                          1
 907.512954712 = 974.434615296  boot/grub/i386-pc/core.img                     1
 898.640377045 = 964.907757568  boot/vmlinuz-4.15.0-46-generic                 1
 920.716072083 = 988.611354624  boot/vmlinuz-4.15.0-74-generic                 1
 920.514526367 = 988.394946560  boot/vmlinuz-4.4.0-171-generic                 1
 920.716072083 = 988.611354624  vmlinuz                                        1
 920.514526367 = 988.394946560  vmlinuz.old                                    1
 922.373977661 = 990.391517184  boot/initrd.img-4.15.0-46-generic              2
 922.513019562 = 990.540812288  boot/initrd.img-4.15.0-74-generic              3
 922.460494995 = 990.484414464  boot/initrd.img-4.4.0-171-generic              3
 922.513019562 = 990.540812288  initrd.img                                     3


ADDITIONAL INFORMATION :
=================== log of boot-info 20200124_1504 ===================
boot-info version : 4ppa66
boot-sav version : 4ppa66
boot-sav-extra version : 4ppa66
glade2script version : 3.2.3~ppa4
Warning: failed to translate partition name
boot-info is executed in installed-session (Ubuntu 16.04.6 LTS, xenial, Ubuntu, x86_64)
CPU op-mode(s):        32-bit, 64-bit
BOOT_IMAGE=/boot/vmlinuz-4.15.0-74-generic root=UUID=e18f2451-2ae4-42db-9d6f-8218e001db75 ro quiet splash vt.handoff=7

=================== os-prober:
/dev/sda5:L'OS actuellement utilisé - Ubuntu 16.04.6 LTS CurrentSession:linux
/dev/sda1@/EFI/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi

=================== blkid:
/dev/loop0: TYPE="squashfs"
/dev/loop1: TYPE="squashfs"
/dev/loop2: TYPE="squashfs"
/dev/sda1: LABEL="ESP" UUID="D2AA-1B3B" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="f6ffcce8-5593-4ed5-b081-af377a5a681f"
/dev/sda3: LABEL="Acer" UUID="5EAAABFAAAABCCB9" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="84d9eafd-5b4c-4ff0-805d-87a8aead94db"
/dev/sda4: LABEL="Recovery" UUID="16F8AE40F8AE1E4D" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="a9d05afc-426f-49e3-97ec-81902aacc995"
/dev/sda5: UUID="e18f2451-2ae4-42db-9d6f-8218e001db75" TYPE="ext4" PARTUUID="ffab8080-0843-4827-86d5-6a3415ebd54f"
/dev/sda6: UUID="9ba72e2e-51d4-4251-afc1-6d0f5fcd5ac9" TYPE="swap" PARTUUID="b9702e91-fce2-40b5-ad82-dff4bc8408be"
/dev/sda2: PARTLABEL="Microsoft reserved partition" PARTUUID="2e8c1f81-70d2-47ba-810f-24dac315b840"


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

Windows not detected by os-prober on sda3.

=================== /etc/grub.d/ :
drwxr-xr-x  2 root root     4096 janv. 23 16:15 grub.d
total 84
-rwxr-xr-x 1 root root  9791 avril 16  2016 00_header
-rwxr-xr-x 1 root root  6258 mars  15  2016 05_debian_theme
-rwxr-xr-x 1 root root 12512 nov.  28  2018 10_linux
-rwxr-xr-x 1 root root 11082 avril 16  2016 20_linux_xen
-rwxr-xr-x 1 root root  1992 janv. 28  2016 20_memtest86+
-rwxr-xr-x 1 root root   721 janv. 23 16:15 25_custom
-rwxr-xr-x 1 root root 11692 avril 16  2016 30_os-prober
-rwxr-xr-x 1 root root  1418 avril 16  2016 30_uefi-firmware
-rwxr-xr-x 1 root root   214 avril 16  2016 40_custom
-rwxr-xr-x 1 root root   216 avril 16  2016 41_custom
-rw-r--r-- 1 root root   483 avril 16  2016 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_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
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=D2AA-1B3B	 (sda1)
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 bkp file detected: /boot/efi/EFI/Boot/bkpbootx64.efi

=================== efibootmgr -v
BootCurrent: 0005
Timeout: 0 seconds
BootOrder: 0003,0005,0000,2001,2002,2003
Boot0000* ubuntu	PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..
Boot0001* Unknown Device: 	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntushimx64.efi)RC
Boot0002* ubuntu	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntushimx64.efi)
Boot0003* Windows Boot Manager	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIMicrosoftBootbootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...`................
Boot0005* Ubuntu	PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..
Boot2001* EFI USB Device	RC
Boot2002* EFI DVD/CDROM	RC
Boot2003* EFI Network	RC

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this installed-session.
SecureBoot disabled. (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,	farbios,	notbiosboot, .
sda1	: 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.
sda3	: 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,	farbios,	notbiosboot, /mnt/boot-sav/sda3.
sda4	: 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,	farbios,	notbiosboot, /mnt/boot-sav/sda4.

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


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

BYT;
/dev/sda:1000GB:scsi:512:4096:gpt:ATA TOSHIBA MQ01ABD1:;
1:1049kB:106MB:105MB:fat32:EFI system partition:boot, esp;
2:106MB:123MB:16.8MB::Microsoft reserved partition:msftres;
3:123MB:958GB:958GB:ntfs:Basic data partition:msftdata;
5:963GB:991GB:27.3GB:ext4::;
6:991GB:999GB:8452MB:linux-swap(v1)::;
4:999GB:1000GB:1074MB:ntfs::hidden, diag;

=================== lsblk:
KNAME TYPE FSTYPE     SIZE LABEL
loop1 loop squashfs  89,1M
sr0   rom            1024M
loop2 loop squashfs  89,1M
loop0 loop squashfs 151,4M
sda   disk          931,5G
sda4  part ntfs         1G Recovery
sda2  part             16M
sda5  part ext4      25,4G
sda3  part ntfs     892,3G Acer
sda1  part vfat       100M ESP
sda6  part swap       7,9G

KNAME ROTA RO RM STATE   MOUNTPOINT
loop1    1  1  0         /snap/core/8268
sr0      1  0  1 running
loop2    1  1  0         /snap/core/8213
loop0    1  1  0         /snap/arduino-mhall119/5
sda      1  0  0 running
sda4     1  0  0         /mnt/boot-sav/sda4
sda2     1  0  0
sda5     1  0  0         /
sda3     1  0  0         /mnt/boot-sav/sda3
sda1     1  0  0         /boot/efi
sda6     1  0  0         [SWAP]


=================== 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=3985844k,nr_inodes=996461,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=803268k,mode=755)
/dev/sda5 on / type ext4 (rw,relatime,errors=remount-ro,data=ordered)
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/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,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/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/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
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/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/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=29,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=14964)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
/var/lib/snapd/snaps/arduino-mhall119_5.snap on /snap/arduino-mhall119/5 type squashfs (ro,nodev,relatime)
/var/lib/snapd/snaps/core_8268.snap on /snap/core/8268 type squashfs (ro,nodev,relatime)
/var/lib/snapd/snaps/core_8213.snap on /snap/core/8213 type squashfs (ro,nodev,relatime)
/dev/sda1 on /boot/efi type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=803268k,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/sda3 on /mnt/boot-sav/sda3 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)


=================== 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 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 cdrw char console core cpu cpu_dma_latency cuse disk dri drm_dp_aux0 drm_dp_aux1 dvd dvdrw ecryptfs fb0 fd full fuse hidraw0 hpet hugepages hwrng i2c-0 i2c-1 i2c-10 i2c-11 i2c-12 i2c-13 i2c-14 i2c-15 i2c-16 i2c-17 i2c-2 i2c-3 i2c-4 i2c-5 i2c-6 i2c-7 i2c-8 i2c-9 initctl input kmsg kvm lightnvm log mapper mcelog media0 mei0 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 sg0 sg1 shm snapshot snd sr0 stderr stdin stdout tpm0 tpmrm0 uhid uinput urandom userio v4l vfio vga_arbiter vhci vhost-net vhost-vsock video0 zero
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 02 fe 19  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 20 03 00 01 03 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 3b 1b aa d2 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 44 69  |..............Di|
000001b0  73 6b 20 65 72 72 6f 72  ff 0d 0a 50 72 65 73 73  |sk error...Press|
000001c0  20 61 6e 79 20 6b 65 79  20 74 6f 20 72 65 73 74  | any key to rest|
000001d0  61 72 74 0d 0a 00 00 00  00 00 00 00 00 00 00 00  |art.............|
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 b9 01 00 00 55 aa  |..............U.|
00000200

=================== hexdump -n512 -C /dev/sda3
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 a8 03 00  |........?.......|
00000020  00 00 00 00 80 00 80 00  ca 57 88 6f 00 00 00 00  |.........W.o....|
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  b9 cc ab aa fa ab aa 5e  |...............^|
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 41 20 64 69  |............A di|
00000190  73 6b 20 72 65 61 64 20  65 72 72 6f 72 20 6f 63  |sk read error oc|
000001a0  63 75 72 72 65 64 00 0d  0a 42 4f 4f 54 4d 47 52  |curred...BOOTMGR|
000001b0  20 69 73 20 63 6f 6d 70  72 65 73 73 65 64 00 0d  | is compressed..|
000001c0  0a 50 72 65 73 73 20 43  74 72 6c 2b 41 6c 74 2b  |.Press Ctrl+Alt+|
000001d0  44 65 6c 20 74 6f 20 72  65 73 74 61 72 74 0d 0a  |Del to restart..|
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  a7 01 bf 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 68 50 74  |........?....hPt|
00000020  00 00 00 00 80 00 80 00  ff ff 1f 00 00 00 00 00  |................|
00000030  55 55 01 00 00 00 00 00  02 00 00 00 00 00 00 00  |UU..............|
00000040  f6 00 00 00 01 00 00 00  4d 1e ae f8 40 ae f8 16  |........M...@...|
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 41 20 64 69  |............A di|
00000190  73 6b 20 72 65 61 64 20  65 72 72 6f 72 20 6f 63  |sk read error oc|
000001a0  63 75 72 72 65 64 00 0d  0a 42 4f 4f 54 4d 47 52  |curred...BOOTMGR|
000001b0  20 69 73 20 63 6f 6d 70  72 65 73 73 65 64 00 0d  | is compressed..|
000001c0  0a 50 72 65 73 73 20 43  74 72 6c 2b 41 6c 74 2b  |.Press Ctrl+Alt+|
000001d0  44 65 6c 20 74 6f 20 72  65 73 74 61 72 74 0d 0a  |Del to restart..|
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  a7 01 bf 01 00 00 55 aa  |..............U.|
00000200

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

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs  3.9G     0  3.9G   0% /dev
tmpfs          tmpfs     785M  9.4M  776M   2% /run
/dev/sda5      ext4       25G   18G  6.0G  75% /
tmpfs          tmpfs     3.9G  212M  3.7G   6% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs     3.9G     0  3.9G   0% /sys/fs/cgroup
/dev/loop0     squashfs  152M  152M     0 100% /snap/arduino-mhall119/5
/dev/loop1     squashfs   90M   90M     0 100% /snap/core/8268
/dev/loop2     squashfs   90M   90M     0 100% /snap/core/8213
/dev/sda1      vfat       96M   51M   46M  53% /boot/efi
tmpfs          tmpfs     785M   64K  785M   1% /run/user/1000
/dev/sda3      fuseblk   893G  767G  126G  86% /mnt/boot-sav/sda3
/dev/sda4      fuseblk   1.0G  407M  618M  40% /mnt/boot-sav/sda4

=================== fdisk -l:
Disk /dev/loop0: 151.4 MiB, 158715904 bytes, 309992 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: 89.1 MiB, 93417472 bytes, 182456 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: 89.1 MiB, 93429760 bytes, 182480 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: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: C5D0AB67-CFD1-49DF-A9C2-60E008AFE3D9

Device          Start        End    Sectors   Size Type
/dev/sda1        2048     206847     204800   100M EFI System
/dev/sda2      206848     239615      32768    16M Microsoft reserved
/dev/sda3      239616 1871445962 1871206347 892.3G Microsoft basic data
/dev/sda4  1951426560 1953523711    2097152     1G Windows recovery environment
/dev/sda5  1881686016 1934919679   53233664  25.4G Linux filesystem
/dev/sda6  1934919680 1951426559   16506880   7.9G Linux swap

Partition table entries are not in disk order.




=================== Suggested repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sda5, using the following options:        sda1/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 sda1/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.

L'entrée UEFI que j'uitlise pour lancer Ubuntu est celle nommée "Ubuntu", toutefois j'en ai une autre qui s'appelle "ubuntu" que je n'utilise pas.

Cordialement, smile

Hors ligne

#6 Le 24/01/2020, à 17:40

malbo

Re : Impossible d'accéder à mon Ubuntu 16.04 LTS installé en dual-boot

Aurélien10 a écrit :

L'entrée UEFI que j'uitlise pour lancer Ubuntu est celle nommée "Ubuntu", toutefois j'en ai une autre qui s'appelle "ubuntu" que je n'utilise pas.

C'est bien confirmé par ce qu'on peut voir dans cet extrait : 

=================== efibootmgr -v
BootCurrent: 0005
Timeout: 0 seconds
BootOrder: 0003,0005,0000,2001,2002,2003
Boot0000* ubuntu	PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..
Boot0001* Unknown Device: 	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntushimx64.efi)RC
Boot0002* ubuntu	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntushimx64.efi)
Boot0003* Windows Boot Manager	HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIMicrosoftBootbootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...`................
Boot0005* Ubuntu	PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..
Boot2001* EFI USB Device	RC
Boot2002* EFI DVD/CDROM	RC
Boot2003* EFI Network	RC

C'est à dire que le démarrage s'est fait sur l'entrée 0005 : 

BootCurrent: 0005

qui est bien l'entrée nommée "Ubuntu" (avec un U majuscule en tête) : 

Boot0005* Ubuntu	PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..

J'ai fortement l'impression que cette entrée a été créée en utilisant la fonctionnalité "select an uefi file as trusted" du Bios. Peux-tu le confirmer ?

Dernière modification par malbo (Le 24/01/2020, à 17:44)

Hors ligne

#7 Le 24/01/2020, à 18:18

Aurélien10

Re : Impossible d'accéder à mon Ubuntu 16.04 LTS installé en dual-boot

Non en réalité il me semble avoir déjà essayé d'installer une version d'ubuntu en dual-boot il y a longtemps seulement j'avais eu une erreur....j'avais donc réinstallé Ubuntu 16.04 en l'appelant Ubuntu cette fois-ci.
Je ne me rappelle pas avoir utilisé la fonctionnalité "select an uefi file as trusted" du Bios...

Hors ligne

#8 Le 24/01/2020, à 18:52

malbo

Re : Impossible d'accéder à mon Ubuntu 16.04 LTS installé en dual-boot

Aurélien10 a écrit :

Je ne me rappelle pas avoir utilisé la fonctionnalité "select an uefi file as trusted" du Bios...

C'est bizarre parce que dans le ligne Aspire E5-575G-543V de la Liste des portables « Acer », on peut lire : "Il est indispensable d'utiliser la fonctionnalité "select an uefi file as trusted" dans le "Bios" pour parvenir à démarrer sur Ubuntu".

Hors ligne

#9 Le 24/01/2020, à 19:00

Aurélien10

Re : Impossible d'accéder à mon Ubuntu 16.04 LTS installé en dual-boot

Et bien j'ai surement dû l'utiliser, je l'ai installé il y a plus d'un an donc je ne me rappelle pas.
Tu sais si il y a un moyen de vérifier ça ?

Hors ligne

#10 Le 24/01/2020, à 19:19

malbo

Re : Impossible d'accéder à mon Ubuntu 16.04 LTS installé en dual-boot

Aurélien10 a écrit :

Tu sais si il y a un moyen de vérifier ça ?

Non.
Par contre, je sais que la partie que je mets en gras ci-dessous est "la signature" d'une entrée créée par cette méthode :
Boot0005* Ubuntu    PciRoot(0x0)/Pci(0x17,0x0)/Sata(0,0,0)/HD(1,GPT,f6ffcce8-5593-4ed5-b081-af377a5a681f,0x800,0x32000)/File(EFIubuntugrubx64.efi)A01 ..

EDIT : on peut retrouver cette signature dans ce post. Il s'agit d'une entrée créée avec la fonctionnalité "select an uefi file as trusted" qui a été nommée "UbuntuShix64".

Dernière modification par malbo (Le 25/01/2020, à 08:35)

Hors ligne

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