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#1 Le 20/07/2018, à 15:48

verdipuccini

Installation Ubuntu via USB - GNU-GRUB

Bonjour,
ce problème a été traité dans plusieurs cas différents, dans diverses discussions, mais après avoir avoir lu de nombreuses pages sur le sujet (site, forum) je n'ai pas réussi à utiliser les réponses pour résoudre mon problème.

Je travaille sur un Dell, sous Ubuntu 16.04.
J'ai voulu réinstaller Ubuntu sous la même version en utilisant unetbootin.

J'ai lancé l'installation qui a réussi, j'ai obtenu ensuite le message me demandant de redémarrer l'ordinateur et en redémarrant j'obtiens l'écran noir :         GNU GRUB version 2.00-19ubuntu2.1
Minimal BASH-like line .....
grub>

J'ai essayé de relancer en gardant la clé usb " lancer ubuntu sans installation"; dans cette session j'ai essayé de lancer un boot-repair via les instructions sur Wiki-Ubuntu mais la réparation s’arrête à un moment et l'ordinateur se bloque.

Je n'ai plus d'idées pour résoudre mon problème,
si quelqu'un peut m'aider je lui en serais très reconnaissant.

Merci d'avance

Dernière modification par verdipuccini (Le 20/07/2018, à 15:54)

Hors ligne

#2 Le 20/07/2018, à 15:56

Nuliel

Re : Installation Ubuntu via USB - GNU-GRUB

Bonjour,

A partir de " lancer ubuntu sans installation", peux tu faire un boot info et poster l'url ici? https://doc.ubuntu-fr.org/tutoriel/boot-info
Lors de l'installation, tu as coché "faire les mises à jour"?

Hors ligne

#3 Le 20/07/2018, à 16:08

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Alors j'ai réessayé plusieurs l'installation en cochant " faire les mises à jour" et sans et à chaque fois ça n'a pas marché, et je suis toujours retombé sur l'écran noir.

Pour faire boot info, je tape "boot info" de la façon suivante:     GNU GRUB version 2.00-19ubuntu2.1
Minimal BASH-like line .....
grub> boot info                                                           ?

Puis je prends une photo de l'écran?

Dernière modification par verdipuccini (Le 20/07/2018, à 16:09)

Hors ligne

#4 Le 20/07/2018, à 16:09

Nuliel

Re : Installation Ubuntu via USB - GNU-GRUB

Regarde le lien que j'ai fourni, il explique comment faire un boot info

Hors ligne

#5 Le 20/07/2018, à 16:10

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Ok merci beaucoup,

je regarde ça et je reviens vers vous

Hors ligne

#6 Le 20/07/2018, à 16:14

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Hors ligne

#7 Le 20/07/2018, à 16:38

Nuliel

Re : Installation Ubuntu via USB - GNU-GRUB

Heu, je sais pas ce que tu as fait mais c'est pas normal
Peux tu aller voir dans le bios onglet BOOT et dire si le secure boot est activé ou non, si CSM est activé ou non et si le système est en mode EFI ou legacy?

Hors ligne

#8 Le 20/07/2018, à 16:40

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Je dois redémarrer l'ordinateur pour cela? et faire F12?

Hors ligne

#9 Le 20/07/2018, à 16:48

Nuliel

Re : Installation Ubuntu via USB - GNU-GRUB

Oui, je sais pas pour la touche à utiliser, ça dépend de la carte mère. Si ça peut aider https://doc.ubuntu-fr.org/tutoriel/modi … _boot_menu

Hors ligne

#10 Le 20/07/2018, à 16:51

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Alors ça me donne : " Boot mode IS set to: UEFI ; Secure Boot : OFF

Hors ligne

#11 Le 20/07/2018, à 16:54

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Ah oui au dessus de ces informations la partie s'appelle Legacy Boot

Hors ligne

#12 Le 20/07/2018, à 17:01

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Quand j'entre dans la partie BIOS settings, dans la partie Général- Boot Sequence la case cochée pour "BOOT list option" est UEFI et pas Legacy

Hors ligne

#13 Le 20/07/2018, à 17:05

Nuliel

Re : Installation Ubuntu via USB - GNU-GRUB

Ok. Je proposerais bien de supprimer toutes les partitions sauf la première (et encore, faut il la garder?) puis réinstaller ubuntu afin de repartir sur une base saine. J'aimerais bien l'avis d'une autre personne.

Hors ligne

#14 Le 20/07/2018, à 17:08

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Ok, merci beaucoup.
Comment puis je supprimer toutes les partitions sauf la première?

Hors ligne

#15 Le 20/07/2018, à 17:10

Nuliel

Re : Installation Ubuntu via USB - GNU-GRUB

Tu peux le faire avec Gparted ou équivalent à partir de " lancer ubuntu sans installation" mais j'aimerais avoir l'avis d'une autre personne avant de tenter ça: autant on peut refaire une partition EFI autant la partition BOOT j'en avais jamais vu. En tout cas il y a deux partitions de trop

Dernière modification par Nuliel (Le 20/07/2018, à 17:12)

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#16 Le 20/07/2018, à 17:15

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

C'est entendu. Merci beaucoup en tout cas.
J'espère alors que quelqu'un d'autre va pouvoir donner son avis sur la question.

Que voulez vous dire par "deux partitions de trop" ?

Hors ligne

#17 Le 20/07/2018, à 17:24

Nuliel

Re : Installation Ubuntu via USB - GNU-GRUB

Ton disque dur est coupé virtuellement en partitions (comme un diagramme en camembert). Tu as par exemple la partition racine pour ubuntu, si le système est en mode EFI tu as une partition EFI, tu as une partition swap (une extension de mémoire vive en cas de manque de ce dernier), ... Ici, tu as deux partitions EFI, il ne devrait en avoir qu'une seule, et tu as une partition BOOT, ce qui à mon avis devrait pas arriver (et ça correspond à une installation d'ubuntu en mode non-EFI). Les deux partitions de trop étant la deuxième partition EFI et la partition BOOT.

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#18 Le 20/07/2018, à 17:27

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Merci pour ces explications, je comprends mieux.

Je viens de relancer Ubuntu sans installation et je regarde la description de Gparted.

Dans mon cas quelles seraient donc les dev/sda que je devrais supprimer ?

Hors ligne

#19 Le 20/07/2018, à 17:28

Nuliel

Re : Installation Ubuntu via USB - GNU-GRUB

Ce serait pas un ordi avec ubuntu préinstallé? (je dirais sda2 et sda3)

Dernière modification par Nuliel (Le 20/07/2018, à 17:35)

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#20 Le 20/07/2018, à 17:35

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Non Ubuntu n'était pas pré installé sur cet ordinateur.

Merci beaucoup en tout cas Naziel pour votre temps et vos conseils.
Si d'autres solutions vous viennent à l'esprit n'hésitez pas à m'en faire part.

Hors ligne

#21 Le 20/07/2018, à 17:37

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Sinon j'essayerai d'utiliser Gparted.

Et si quelqu'un d'autre a un conseil sur le sujet il sera aussi le bienvenu

Hors ligne

#22 Le 20/07/2018, à 17:45

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Je redemanderai lundi, en confirmation, si par hasard un Ubuntu n'était pas déjà préinstallé.
Je vous relancerai à ce moment là.

Merci encore

Hors ligne

#23 Le 21/07/2018, à 11:14

Nuliel

Re : Installation Ubuntu via USB - GNU-GRUB

Après quelques recherches, j'ai trouvé https://help.ubuntu.com/community/DiskS … T_disks.29 qui dit qu'il faut une partition bios boot pour démarrer en legacy sur un disque GPT (ce qui n'est pas ton cas mais ça répond à ma question)

D'après mes recherches l'installeur d'ubuntu refait une partition EFI (ou plutôt ESP) s'il n'y en a pas, donc je serais pour supprimer toutes les partitions, puis réinstaller (l'installeur devrait savoir refaire tout proprement)

Edit: j'aimerais qu'avant tu fasses une photo de l'onglet boot du bios et que tu la postes en suivant ce lien: https://forum.ubuntu-fr.org/viewtopic.php?id=2021144
Le boot info annonce que tu bootes en legacy et tu annonces en EFI

pense bête: https://forum.ubuntu-fr.org/viewtopic.php?id=1994132
https://forum.ubuntu-fr.org/viewtopic.php?id=1988515

Dernière modification par Nuliel (Le 21/07/2018, à 11:30)

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#24 Le 22/07/2018, à 15:58

verdipuccini

Re : Installation Ubuntu via USB - GNU-GRUB

Merci infiniment pour ces recherches ultérieures.
Je prendrai la photo dès demain quand je serai de retour devant l'ordinateur

Hors ligne

#25 Le 22/07/2018, à 22:00

Babdu89

Re : Installation Ubuntu via USB - GNU-GRUB

Bonsoir.
Le boot-info est là.

Ubuntu Pastebin
Paste from boot-repair at Fri, 20 Jul 2018 15:13:02 +0000

This paste expires on 2018-08-20.
Download as text

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


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

 => Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 
    7522304 of the same hard drive for core.img. core.img is at this location 
    and looks for (,gpt5)/boot/grub. It also embeds following components:
    
    modules
    ---------------------------------------------------------------------------
    fshelp ext2 part_gpt biosdisk
    ---------------------------------------------------------------------------
 => Syslinux MBR (5.00 and higher) 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/shimx64.efi 
                       /EFI/ubuntu/fwupx64.efi /EFI/ubuntu/grubx64.efi 
                       /EFI/ubuntu/mmx64.efi /EFI/ubuntu/shimx64.efi

sda2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows 8/2012: FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /boot/grub/grub.cfg /casper/vmlinuz.efi 
                       /efi.factory/boot/bootx64.efi 
                       /efi.factory/boot/grubx64.efi

sda3: __________________________________________________________________________

    File system:       BIOS Boot partition
    Boot sector type:  Grub2's core.img
    Boot sector info: 

sda4: __________________________________________________________________________

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

sda5: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 16.04.4 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab 
                       /boot/grub/i386-pc/core.img

sdb1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  SYSLINUX 6.03 20151222............................................@.....2....0............A20 gate n
    Boot sector info:  Syslinux looks at sector 3311920 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:        /syslinux.cfg /ldlinux.sys

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

Drive: sda _____________________________________________________________________
Disk /dev/sda: 953.9 GiB, 1024209543168 bytes, 2000409264 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 2,000,409,263 2,000,409,263  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048     1,230,847     1,228,800 EFI System partition
/dev/sda2             1,230,848     7,522,303     6,291,456 Data partition (Windows/Linux)
/dev/sda3             7,522,304     7,524,351         2,048 BIOS Boot partition
/dev/sda4         1,866,352,640 2,000,408,575   134,055,936 Swap partition (Linux)
/dev/sda5             7,524,352 1,866,352,639 1,858,828,288 Data partition (Linux)

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

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 14.4 GiB, 15493758976 bytes, 30261248 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1    *          2,048    30,261,247    30,259,200   c W95 FAT32 (LBA)


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/sda1        A4EC-C42A                              vfat       ESP
/dev/sda2        560A-3BF5                              vfat       OS
/dev/sda3                                                          
/dev/sda4        ae9c90f1-5713-49ca-b879-6d2969db92f0   swap       
/dev/sda5        8ced0f9a-0a20-40d8-a619-d10dd66dfede   ext4       
/dev/sdb1        DAAA-B3C4                              vfat       

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

total 0
lrwxrwxrwx 1 root root  9 Jul 20 15:12 ata-SK_hynix_SC311_SATA_1TB_MS7BN66841010C26D -> ../../sda
lrwxrwxrwx 1 root root 10 Jul 20 15:12 ata-SK_hynix_SC311_SATA_1TB_MS7BN66841010C26D-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Jul 20 15:12 ata-SK_hynix_SC311_SATA_1TB_MS7BN66841010C26D-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jul 20 15:12 ata-SK_hynix_SC311_SATA_1TB_MS7BN66841010C26D-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Jul 20 15:12 ata-SK_hynix_SC311_SATA_1TB_MS7BN66841010C26D-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Jul 20 15:12 ata-SK_hynix_SC311_SATA_1TB_MS7BN66841010C26D-part5 -> ../../sda5
lrwxrwxrwx 1 root root  9 Jul 20 15:12 usb-TDK_LoR_TF10_070737828EBC9152-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Jul 20 15:12 usb-TDK_LoR_TF10_070737828EBC9152-0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root  9 Jul 20 15:12 wwn-0x5ace42e02029ab68 -> ../../sda
lrwxrwxrwx 1 root root 10 Jul 20 15:12 wwn-0x5ace42e02029ab68-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Jul 20 15:12 wwn-0x5ace42e02029ab68-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Jul 20 15:12 wwn-0x5ace42e02029ab68-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Jul 20 15:12 wwn-0x5ace42e02029ab68-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Jul 20 15:12 wwn-0x5ace42e02029ab68-part5 -> ../../sda5

================================ 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 4f878a36-fa38-483b-886b-19f0a13a1474 root hd0,gpt3 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=========================== sda2/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#########################################################
#                                                       #
# Dell Grub2 configuration file for ISO Images          #
# By: Mario Limonciello <Mario_Limonciello@Dell.com>    #
#                                                       #
#########################################################

# First check for additional options on ISO image
if [ -s /factory/common.cfg ]; then
    source /factory/common.cfg
fi

#Post RTS deliverables
if [ -s /factory/post-rts-gfx.cfg ]; then
    source /factory/post-rts-gfx.cfg
fi
if [ -s /factory/post-rts-wlan.cfg ]; then
    source /factory/post-rts-wlan.cfg
fi

# If missing, load a nice basic default set
if [ -z "${options}" ]; then
    set options="boot=casper automatic-ubiquity noprompt quiet splash nomodeset --"
fi

# Setup theme
set timeout=5
set gfxmode=auto
insmod gfxterm
terminal_output gfxterm
loadfont /boot/grub/dejavu-sans-12.pf2
loadfont /boot/grub/dejavu-sans-bold-14.pf2
insmod gfxmenu
insmod png
set theme=/boot/grub/dell/theme.txt

# Search for the RP (which contains grubenv in /factory)
search --file --set=new_root /factory/grubenv
if [ -s ($new_root)/factory/grubenv ]; then
    set have_grubenv=true
    load_env -f ($new_root)/factory/grubenv
    if [ -n "${install_finished}" ]; then
        set timeout=-1
        menuentry "Install Complete, remove media and reboot." {
        chainloader +1
        }
    fi
    if [ "x${install_in_progress}" = "x1" ]; then
        set root=$new_root
        configfile ($new_root)/factory/grub.cfg
    fi
fi

#Default behavior
menuentry "Dell Recovery" {
	set gfxpayload=keep
	linux	/casper/vmlinuz.efi $options
	initrd	/casper/initrd.lz
}

menuentry "Dell Recovery (safe graphics mode)" {
	set gfxpayload=keep
	linux   /casper/vmlinuz.efi $options ubiquity/force_failsafe_graphics=true
	initrd	/casper/initrd.lz
}
--------------------------------------------------------------------------------

=================== sda2: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

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

=========================== 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  8ced0f9a-0a20-40d8-a619-d10dd66dfede
else
  search --no-floppy --fs-uuid --set=root 8ced0f9a-0a20-40d8-a619-d10dd66dfede
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=hidden
    set timeout=0
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 0 ; then
    set timeout=0
  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-8ced0f9a-0a20-40d8-a619-d10dd66dfede' {
	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  8ced0f9a-0a20-40d8-a619-d10dd66dfede
	else
	  search --no-floppy --fs-uuid --set=root 8ced0f9a-0a20-40d8-a619-d10dd66dfede
	fi
        linux	/boot/vmlinuz-4.13.0-36-generic root=UUID=8ced0f9a-0a20-40d8-a619-d10dd66dfede ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-4.13.0-36-generic
}
submenu 'Options avancées pour Ubuntu' $menuentry_id_option 'gnulinux-advanced-8ced0f9a-0a20-40d8-a619-d10dd66dfede' {
	menuentry 'Ubuntu, avec Linux 4.13.0-36-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.13.0-36-generic-advanced-8ced0f9a-0a20-40d8-a619-d10dd66dfede' {
		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  8ced0f9a-0a20-40d8-a619-d10dd66dfede
		else
		  search --no-floppy --fs-uuid --set=root 8ced0f9a-0a20-40d8-a619-d10dd66dfede
		fi
		echo	'Chargement de Linux 4.13.0-36-generic…'
	        linux	/boot/vmlinuz-4.13.0-36-generic root=UUID=8ced0f9a-0a20-40d8-a619-d10dd66dfede ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.13.0-36-generic
	}
	menuentry 'Ubuntu, with Linux 4.13.0-36-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.13.0-36-generic-init-upstart-8ced0f9a-0a20-40d8-a619-d10dd66dfede' {
		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  8ced0f9a-0a20-40d8-a619-d10dd66dfede
		else
		  search --no-floppy --fs-uuid --set=root 8ced0f9a-0a20-40d8-a619-d10dd66dfede
		fi
		echo	'Chargement de Linux 4.13.0-36-generic…'
	        linux	/boot/vmlinuz-4.13.0-36-generic root=UUID=8ced0f9a-0a20-40d8-a619-d10dd66dfede ro  quiet splash $vt_handoff init=/sbin/upstart
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.13.0-36-generic
	}
	menuentry 'Ubuntu, with Linux 4.13.0-36-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.13.0-36-generic-recovery-8ced0f9a-0a20-40d8-a619-d10dd66dfede' {
		recordfail
		load_video
		insmod gzio
		if [ x$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  8ced0f9a-0a20-40d8-a619-d10dd66dfede
		else
		  search --no-floppy --fs-uuid --set=root 8ced0f9a-0a20-40d8-a619-d10dd66dfede
		fi
		echo	'Chargement de Linux 4.13.0-36-generic…'
	        linux	/boot/vmlinuz-4.13.0-36-generic root=UUID=8ced0f9a-0a20-40d8-a619-d10dd66dfede ro recovery nomodeset 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.13.0-36-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+ ###
menuentry 'Memory test (memtest86+)' {
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt5'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt5 --hint-efi=hd0,gpt5 --hint-baremetal=ahci0,gpt5  8ced0f9a-0a20-40d8-a619-d10dd66dfede
	else
	  search --no-floppy --fs-uuid --set=root 8ced0f9a-0a20-40d8-a619-d10dd66dfede
	fi
	knetbsd	/boot/memtest86+.elf
}
menuentry 'Memory test (memtest86+, serial console 115200)' {
	insmod part_gpt
	insmod ext2
	set root='hd0,gpt5'
	if [ x$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  8ced0f9a-0a20-40d8-a619-d10dd66dfede
	else
	  search --no-floppy --fs-uuid --set=root 8ced0f9a-0a20-40d8-a619-d10dd66dfede
	fi
	linux16	/boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
### 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=8ced0f9a-0a20-40d8-a619-d10dd66dfede /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda4 during installation
UUID=ae9c90f1-5713-49ca-b879-6d2969db92f0 none            swap    sw              0       0
--------------------------------------------------------------------------------

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

           GiB - GB             File                                 Fragment(s)

 175.757286072 = 188.717948928  boot/grub/grub.cfg                             2
 175.757282257 = 188.717944832  boot/grub/i386-pc/core.img                     2
 193.756420135 = 208.044371968  boot/vmlinuz-4.13.0-36-generic                 2
 193.756420135 = 208.044371968  vmlinuz                                        2
 172.142559052 = 184.836665344  boot/initrd.img-4.13.0-36-generic              2
 172.142559052 = 184.836665344  initrd.img                                     2

============================== 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.lz file=/cdrom/preseed/ubuntu.seed boot=casper  quiet splash ---

label ubnentry2
menu label ^Install Ubuntu
kernel /casper/vmlinuz
append initrd=/casper/initrd.lz 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.lz 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 

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

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

           GiB - GB             File                                 Fragment(s)

            ?? = ??             syslinux.cfg                                   1
            ?? = ??             ldlinux.sys                                    1
            ?? = ??             ldlinux.c32                                    1
            ?? = ??             libcom32.c32                                   1
            ?? = ??             libutil.c32                                    1
            ?? = ??             menu.c32                                       1

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

 ldlinux.c32                        :  not a COM32/COM32R module
 libcom32.c32                       :  not a COM32/COM32R module
 libutil.c32                        :  not a COM32/COM32R module
 menu.c32                           :  not a COM32/COM32R module

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

File descriptor 9 (/proc/5592/mounts) leaked on lvs invocation. Parent PID 15862: bash
File descriptor 63 (pipe:[49359]) leaked on lvs invocation. Parent PID 15862: bash

ADDITIONAL INFORMATION :
=================== log of boot-info 20180720_1512 ===================
boot-info version : 4ppa65
boot-sav version : 4ppa65
boot-sav-extra version : 4ppa65
glade2script version : 3.2.3~ppa4
boot-info is executed in live-session (Ubuntu 16.04.4 LTS, xenial, Ubuntu, i686)
CPU op-mode(s):        32-bit, 64-bit
BOOT_IMAGE=/casper/vmlinuz initrd=/casper/initrd.lz file=/cdrom/preseed/ubuntu.seed boot=casper  quiet splash ---
ls: cannot access '/home/usr/.config': No such file or directory

=================== os-prober:
/dev/sda5:Ubuntu 16.04.4 LTS (16.04):Ubuntu:linux

=================== blkid:
/dev/sda1: LABEL="ESP" UUID="A4EC-C42A" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="7d3e22e8-c6b2-4145-ac6d-2c514bac0bc4"
/dev/sda2: LABEL="OS" UUID="560A-3BF5" TYPE="vfat" PARTLABEL="Basic data partition" PARTUUID="8cb81c54-cc5e-4bf3-8582-a51109865ca3"
/dev/sda5: UUID="8ced0f9a-0a20-40d8-a619-d10dd66dfede" TYPE="ext4" PARTUUID="f130af21-d294-48f9-9115-9dc17a03e1a4"
/dev/sdb1: UUID="DAAA-B3C4" TYPE="vfat" PARTUUID="8d37a101-01"
/dev/loop0: TYPE="squashfs"
/dev/sda4: UUID="ae9c90f1-5713-49ca-b879-6d2969db92f0" TYPE="swap" PARTUUID="e6dbd9bb-5c3b-4574-a699-9a887a4ff789"
/dev/sda3: PARTUUID="9f05e915-7d6b-4459-9494-981f621cad1f"


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

Linux not detected by os-prober on sda3. Please report this message to boot.repair@gmail.com
Presence of EFI/Boot file detected: /mnt/boot-sav/sda1/EFI/Boot/shimx64.efi
=================== No kernel in /mnt/boot-sav/sda2/boot:
efi.img
grub



=================== sda5/etc/grub.d/ :
drwxr-xr-x  2 root root    4096 Feb 28 18:32 grub.d
total 80
-rwxr-xr-x 1 root root  9791 Feb  8 14:43 00_header
-rwxr-xr-x 1 root root  6258 Jan 24 21:21 05_debian_theme
-rwxr-xr-x 1 root root 12512 Feb  8 14:43 10_linux
-rwxr-xr-x 1 root root 11082 Feb  8 14:43 20_linux_xen
-rwxr-xr-x 1 root root  1992 Jan 28  2016 20_memtest86+
-rwxr-xr-x 1 root root 11692 Feb  8 14:43 30_os-prober
-rwxr-xr-x 1 root root  1418 Feb  8 14:43 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Feb  8 14:43 40_custom
-rwxr-xr-x 1 root root   216 Feb  8 14:43 41_custom
-rw-r--r-- 1 root root   483 Feb  8 14:43 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"




=================== /etc/grub.d/ :
drwxr-xr-x  2 root root     204 Feb 28 18:32 grub.d
total 57
-rwxr-xr-x 1 root root  9791 Feb  8 14:43 00_header
-rwxr-xr-x 1 root root  6258 Jan 24 21:21 05_debian_theme
-rwxr-xr-x 1 root root 12512 Feb  8 14:43 10_linux
-rwxr-xr-x 1 root root 11082 Feb  8 14:43 20_linux_xen
-rwxr-xr-x 1 root root  1992 Jan 28  2016 20_memtest86+
-rwxr-xr-x 1 root root 11692 Feb  8 14:43 30_os-prober
-rwxr-xr-x 1 root root  1418 Feb  8 14:43 30_uefi-firmware
-rwxr-xr-x 1 root root   214 Feb  8 14:43 40_custom
-rwxr-xr-x 1 root root   216 Feb  8 14:43 41_custom
-rw-r--r-- 1 root root   483 Feb  8 14:43 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"



=================== No kernel in /boot:
abi-4.13.0-36-generic
config-4.13.0-36-generic
grub
memtest86+.bin
memtest86+.elf
memtest86+_multiboot.bin
retpoline-4.13.0-36-generic
System.map-4.13.0-36-generic



=================== UEFI/Legacy mode:
BIOS is EFI-compatible, but it is not setup in EFI-mode for this live-session.
EFI in dmesg.
[    0.000000] ACPI: UEFI 0x00000000C9FBF228 000042 (v01 INTEL  EDK2     00000002      01000013)
SecureBoot maybe enabled.


=================== PARTITIONS & DISKS:
sda1	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-boot,	no-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.
sda2	: sda,	not-sepboot,	no-grubenv	nogrub,	no-docgrub,	no-update-grub,	32,	no-kernel,	no-os,	not--efi--part,	part-has-no-fstab,	part-has-no-fstab,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	nopakmgr,	nogrubinstall,	no---usr,	part-has-no-fstab,	not-sep-usr,	standard,	not-far,	notbiosboot, /mnt/boot-sav/sda2.
sda5	: sda,	not-sepboot,	grubenv-ok	grub2,	grub-pc ,	update-grub,	32,	with-boot,	is-os,	not--efi--part,	fstab-without-boot,	fstab-without-efi,	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.
sda3	: sda,	not-sepboot,	grubenv-ok	grub2,	grub-pc ,	update-grub,	32,	no-kernel,	is-os,	not--efi--part,	fstab-without-boot,	fstab-without-efi,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	apt-get,	grub-install,	with--usr,	fstab-without-usr,	not-sep-usr,	standard,	not-far,	is-biosboot, .

sda	: GPT,	BIOS_boot,	has-correctEFI, 	not-usb,	not-mmc, has-os,	2048 sectors * 512 bytes


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

BYT;
/dev/sda:1024GB:scsi:512:4096:gpt:ATA SK hynix SC311 S:;
1:1049kB:630MB:629MB:fat32:EFI system partition:boot, esp;
2:630MB:3851MB:3221MB:fat32:Basic data partition:msftdata;
3:3851MB:3852MB:1049kB:::bios_grub;
5:3852MB:956GB:952GB:ext4::;
4:956GB:1024GB:68.6GB:linux-swap(v1)::;

BYT;
/dev/sdb:15.5GB:scsi:512:512:msdos:TDK LoR TF10:;
1:1049kB:15.5GB:15.5GB:fat32::boot, lba;

=================== lsblk:
KNAME TYPE FSTYPE     SIZE LABEL
sdb   disk           14.4G
sdb1  part vfat      14.4G
loop0 loop squashfs   1.5G
sda   disk          953.9G
sda4  part swap      63.9G
sda2  part vfat         3G OS
sda5  part ext4     886.4G
sda3  part              1M
sda1  part vfat       600M ESP

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


=================== 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=32772264k,nr_inodes=52726,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=6557612k,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=e375ef49)
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)
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/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
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/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)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=33,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=14644)
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)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,relatime)
tmpfs on /run/user/999 type tmpfs (rw,nosuid,nodev,relatime,size=2363308k,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/sda2 on /mnt/boot-sav/sda2 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/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 holders inflight integrity power queue range removable ro sda1 sda2 sda3 sda4 sda5 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 holders inflight integrity power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/dev (filtered):  autofs block bsg btrfs-control bus char console core cpu cpu_dma_latency cuse disk dri drm_dp_aux0 drm_dp_aux1 drm_dp_aux2 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-2 i2c-3 i2c-4 i2c-5 i2c-6 i2c-7 i2c-8 i2c-9 initctl input kmsg kvm lightnvm log mapper mcelog mei0 mem memory_bandwidth mqueue net network_latency network_throughput null port ppp pps0 psaux ptmx ptp0 ptp1 pts random rfkill rtc rtc0 sda sda1 sda2 sda3 sda4 sda5 sdb sdb1 sg0 sg1 shm snapshot snd stderr stdin stdout uhid uinput urandom userio vfio vga_arbiter vhci vhost-net vhost-vsock zero
ls /dev/mapper:  control

=================== hexdump -n512 -C /dev/sda1
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 08 ae 16  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 c0 12 00 a9 04 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 2a c4 ec a4 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/sda2
00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 08 1e 10  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 c8 12 00  |........?.......|
00000020  00 00 60 00 f1 17 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 f5 3b 0a 56 4e  4f 20 4e 41 4d 45 20 20  |..).;.VNO 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

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

Filesystem     Type      Size  Used Avail Use% Mounted on
udev           devtmpfs   32G     0   32G   0% /dev
tmpfs          tmpfs     6.3G  9.6M  6.3G   1% /run
/dev/sdb1      vfat       15G  1.6G   13G  11% /cdrom
/dev/loop0     squashfs  1.5G  1.5G     0 100% /rofs
aufs           aufs       32G  111M   32G   1% /
tmpfs          tmpfs      32G   31M   32G   1% /dev/shm
tmpfs          tmpfs     5.0M  4.0K  5.0M   1% /run/lock
tmpfs          tmpfs      32G     0   32G   0% /sys/fs/cgroup
tmpfs          tmpfs      32G  780K   32G   1% /tmp
tmpfs          tmpfs     2.3G   80K  2.3G   1% /run/user/999
/dev/sda1      vfat      596M   18M  579M   3% /mnt/boot-sav/sda1
/dev/sda2      vfat      3.0G  2.5G  606M  81% /mnt/boot-sav/sda2
/dev/sda5      ext4      873G  4.5G  824G   1% /mnt/boot-sav/sda5

=================== fdisk -l:
Disk /dev/loop0: 1.5 GiB, 1591058432 bytes, 3107536 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: 953.9 GiB, 1024209543168 bytes, 2000409264 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: AC409EA9-BE7F-4F15-BAA1-15CE10D24377

Device          Start        End    Sectors   Size Type
/dev/sda1        2048    1230847    1228800   600M EFI System
/dev/sda2     1230848    7522303    6291456     3G Microsoft basic data
/dev/sda3     7522304    7524351       2048     1M BIOS boot
/dev/sda4  1866352640 2000408575  134055936  63.9G Linux swap
/dev/sda5     7524352 1866352639 1858828288 886.4G Linux filesystem

Partition table entries are not in disk order.


Disk /dev/sdb: 14.4 GiB, 15493758976 bytes, 30261248 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: 0x8d37a101

Device     Boot Start      End  Sectors  Size Id Type
/dev/sdb1  *     2048 30261247 30259200 14.4G  c W95 FAT32 (LBA)




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


=================== Blockers in case of suggested repair
The current session is in Legacy mode. Please reboot the computer, and use this software in an EFI session. This will enable this feature. For example, use a live-USB of Boot-Repair-Disk-64bit (www.sourceforge.net/p/boot-repair-cd), after making sure your BIOS is set up to boot USB in EFI mode.


=================== Advice in case of suggested repair
The boot of your PC is in Legacy mode. You may want to retry after changing it to EFI mode.
Alternatively, you may want to retry after deactivating the [Separate /boot/efi partition:] option.
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!

The boot of your PC is in Legacy mode. You may want to retry after changing it to EFI mode.


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

Download as text

Questions;
Sachant que Ubuntu a été réinstallé plusieurs fois. On voit des restes d'installations faite en UEFI dans la partition boot-esp /sda1.

Mais le boot info est fait avec un live usb Ubuntu 16.04.4 . Si çà a servi pour la dernière installation çà ne peut pas être installé en mode UEFI.

boot-info is executed in live-session (Ubuntu 16.04.4 LTS, xenial, Ubuntu, i686)   

Ubuntu ,i686 c'est une iso en 32 bits. Elle ne peut qu'être installé en mode Bios_Legacy, avec la partition boot-bios /sda3

Confirmation d'une installation en mode Bios_Legacy. On voit ceci dans le boot info;

pas de partition  boot-efi dans le fichier fstab de l'installation.

=============================== 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=8ced0f9a-0a20-40d8-a619-d10dd66dfede /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda4 during installation
UUID=ae9c90f1-5713-49ca-b879-6d2969db92f0 none            swap    sw              0       0

ce n'est pas un grub-efi qui est installé.

sda5	: sda,	not-sepboot,	grubenv-ok	grub2,	grub-pc ,	update-grub,	32,	

Voila pour l'installation actuelle de Ubuntu.

Je ne saurais dire si Windows est installé en UEFI ou Bios_Legacy.

Normalement il faut installer tous les Os dans le même mode pour ne pas avoir de soucis au démarrage.

Et pour pouvoir installer Ubuntu en mode UEFI, Il faut télécharger et utiliser une iso en 64 Bits.

@+.   Babdu89   .


J'ai découvert Ubuntu avec la 07.10.... Et alors?!...  Depuis je regarde de temps en temps si Windows marche toujours....

Hors ligne