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#1 Le 30/10/2018, à 19:18

Shankar

Perte du boot Ubuntu 18.04

Bonjour à tous,

Après le formatage d'une carte micro-sd, connectée par un lecteur de de carte externe en usb, mon ordinateur ne boote plus...
Je pense que j'ai très idiotement formaté la partition du boot au passage...
Comment pourrais-je réparer mon boot sans tout réinstaller ?
Évidemment, ceci est une théorie de ma part, le problème pourrait être autre.

Voilà ce que me montre l'utilitaire "disque" lance depuis un clé usb live (celle de 4gb qui apparaît)

1540923709.png

Merci d'avance de votre aide !

Shankar


Sur Toile Libre, TDCT'Pix ou pix.debian-fr, choisir le lien « Insérer la miniature dans un forum : »

           1469894479.png

Dernière modification par cqfd93 (Le 30/10/2018, à 21:02)

Hors ligne

#2 Le 30/10/2018, à 20:13

Shankar

Re : Perte du boot Ubuntu 18.04

Hors ligne

#3 Le 31/10/2018, à 09:10

malbo

Re : Perte du boot Ubuntu 18.04

Bonjour,
Ton Boot-Info est là :

 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:  FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /EFI/ubuntu/grub.cfg /EFI/Boot/bkpbootx64.efi 
                       /EFI/Boot/bootx64.efi /EFI/Boot/bootx64.efi.origine 
                       /EFI/Boot/fbx64.efi /EFI/ubuntu/fwupx64.efi 
                       /EFI/ubuntu/grubx64.efi /EFI/ubuntu/mmx64.efi 
                       /EFI/ubuntu/shimx64.efi

sda2: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 18.04.1 LTS
    Boot files:        /boot/grub/grub.cfg /etc/fstab

sdb1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  SYSLINUX 4.03 2010-10-22 ........>..sr>.........f9...0...~.....~...f...M.f.f....f..0~....>E}.u......
    Boot sector info:  Syslinux looks at sector 3917416 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/grubx64.efi /ldlinux.sys

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

Drive: sda _____________________________________________________________________
Disk /dev/sda: 119.2 GiB, 128035676160 bytes, 250069680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1   250,069,679   250,069,679  ee GPT


GUID Partition Table detected.

Partition  Attrs   Start Sector    End Sector  # of Sectors System
/dev/sda1                 2,048     1,050,623     1,048,576 EFI System partition
/dev/sda2             1,050,624   250,068,991   249,018,368 Data partition (Linux)

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

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 3.8 GiB, 4009754624 bytes, 7831552 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    *             56     7,831,551     7,831,496   c W95 FAT32 (LBA)


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/loop1                                              squashfs   
/dev/loop2                                              squashfs   
/dev/loop3                                              squashfs   
/dev/loop4                                              squashfs   
/dev/loop5                                              squashfs   
/dev/loop6                                              squashfs   
/dev/loop7                                              squashfs   
/dev/sda1        F50B-91EE                              vfat       
/dev/sda2        81bf57b4-e072-4b61-b2f9-d269f5e91e4f   ext4       
/dev/sdb1        4AFC-8D27                              vfat       USB DISK

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

total 0
lrwxrwxrwx 1 root root  9 Oct 30 19:09 ata-TOSHIBA_THNSNJ128GMCT_Z35S10NUTW7Y -> ../../sda
lrwxrwxrwx 1 root root 10 Oct 30 19:09 ata-TOSHIBA_THNSNJ128GMCT_Z35S10NUTW7Y-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Oct 30 19:09 ata-TOSHIBA_THNSNJ128GMCT_Z35S10NUTW7Y-part2 -> ../../sda2
lrwxrwxrwx 1 root root  9 Oct 30 19:09 usb-USB_Flash_Disk_FBI1308161025502-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Oct 30 19:09 usb-USB_Flash_Disk_FBI1308161025502-0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root  9 Oct 30 19:09 wwn-0x500080d910068bef -> ../../sda
lrwxrwxrwx 1 root root 10 Oct 30 19:09 wwn-0x500080d910068bef-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Oct 30 19:09 wwn-0x500080d910068bef-part2 -> ../../sda2

================================ 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 81bf57b4-e072-4b61-b2f9-d269f5e91e4f root hd0,gpt2 
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=========================== sda2/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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  81bf57b4-e072-4b61-b2f9-d269f5e91e4f
else
  search --no-floppy --fs-uuid --set=root 81bf57b4-e072-4b61-b2f9-d269f5e91e4f
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=10
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 10 ; 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=1
	else
		set vt_handoff=
	fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-81bf57b4-e072-4b61-b2f9-d269f5e91e4f' {
	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,gpt2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  81bf57b4-e072-4b61-b2f9-d269f5e91e4f
	else
	  search --no-floppy --fs-uuid --set=root 81bf57b4-e072-4b61-b2f9-d269f5e91e4f
	fi
        linux	/boot/vmlinuz-4.15.0-38-generic root=UUID=81bf57b4-e072-4b61-b2f9-d269f5e91e4f ro  quiet splash $vt_handoff
	initrd	/boot/initrd.img-4.15.0-38-generic
}
submenu 'Options avancées pour Ubuntu' $menuentry_id_option 'gnulinux-advanced-81bf57b4-e072-4b61-b2f9-d269f5e91e4f' {
	menuentry 'Ubuntu, avec Linux 4.15.0-38-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-38-generic-advanced-81bf57b4-e072-4b61-b2f9-d269f5e91e4f' {
		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,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		else
		  search --no-floppy --fs-uuid --set=root 81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		fi
		echo	'Chargement de Linux 4.15.0-38-generic…'
	        linux	/boot/vmlinuz-4.15.0-38-generic root=UUID=81bf57b4-e072-4b61-b2f9-d269f5e91e4f ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-38-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-38-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-38-generic-recovery-81bf57b4-e072-4b61-b2f9-d269f5e91e4f' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		else
		  search --no-floppy --fs-uuid --set=root 81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		fi
		echo	'Chargement de Linux 4.15.0-38-generic…'
	        linux	/boot/vmlinuz-4.15.0-38-generic root=UUID=81bf57b4-e072-4b61-b2f9-d269f5e91e4f ro recovery nomodeset 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-38-generic
	}
	menuentry 'Ubuntu, avec Linux 4.15.0-36-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-36-generic-advanced-81bf57b4-e072-4b61-b2f9-d269f5e91e4f' {
		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,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		else
		  search --no-floppy --fs-uuid --set=root 81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		fi
		echo	'Chargement de Linux 4.15.0-36-generic…'
	        linux	/boot/vmlinuz-4.15.0-36-generic root=UUID=81bf57b4-e072-4b61-b2f9-d269f5e91e4f ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-36-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-36-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-36-generic-recovery-81bf57b4-e072-4b61-b2f9-d269f5e91e4f' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		else
		  search --no-floppy --fs-uuid --set=root 81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		fi
		echo	'Chargement de Linux 4.15.0-36-generic…'
	        linux	/boot/vmlinuz-4.15.0-36-generic root=UUID=81bf57b4-e072-4b61-b2f9-d269f5e91e4f ro recovery nomodeset 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-36-generic
	}
	menuentry 'Ubuntu, avec Linux 4.15.0-34-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-34-generic-advanced-81bf57b4-e072-4b61-b2f9-d269f5e91e4f' {
		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,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		else
		  search --no-floppy --fs-uuid --set=root 81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		fi
		echo	'Chargement de Linux 4.15.0-34-generic…'
	        linux	/boot/vmlinuz-4.15.0-34-generic root=UUID=81bf57b4-e072-4b61-b2f9-d269f5e91e4f ro  quiet splash $vt_handoff
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-34-generic
	}
	menuentry 'Ubuntu, with Linux 4.15.0-34-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.0-34-generic-recovery-81bf57b4-e072-4b61-b2f9-d269f5e91e4f' {
		recordfail
		load_video
		insmod gzio
		if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
		insmod part_gpt
		insmod ext2
		set root='hd0,gpt2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		else
		  search --no-floppy --fs-uuid --set=root 81bf57b4-e072-4b61-b2f9-d269f5e91e4f
		fi
		echo	'Chargement de Linux 4.15.0-34-generic…'
	        linux	/boot/vmlinuz-4.15.0-34-generic root=UUID=81bf57b4-e072-4b61-b2f9-d269f5e91e4f ro recovery nomodeset 
		echo	'Chargement du disque mémoire initial…'
		initrd	/boot/initrd.img-4.15.0-34-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 "Boot UEFI bkpbootx64.efi" {
search --fs-uuid --no-floppy --set=root F50B-91EE
chainloader (${root})/EFI/Boot/bkpbootx64.efi
}

menuentry "Boot UEFI fbx64.efi" {
search --fs-uuid --no-floppy --set=root F50B-91EE
chainloader (${root})/EFI/Boot/fbx64.efi
}

menuentry "EFI/ubuntu/fwupx64.efi" {
search --fs-uuid --no-floppy --set=root F50B-91EE
chainloader (${root})/EFI/ubuntu/fwupx64.efi
}

menuentry "EFI/ubuntu/mmx64.efi" {
search --fs-uuid --no-floppy --set=root F50B-91EE
chainloader (${root})/EFI/ubuntu/mmx64.efi
}
### END /etc/grub.d/25_custom ###

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

=============================== sda2/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/sda2 during installation
UUID=81bf57b4-e072-4b61-b2f9-d269f5e91e4f /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda1 during installation
#UUID=F50B-91EE  /boot/efi       vfat    umask=0077      0       1
/swapfile                                 none            swap    sw              0       0
UUID=F50B-91EE	/boot/efi	vfat	defaults	0	1
--------------------------------------------------------------------------------

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

           GiB - GB             File                                 Fragment(s)

  80.654403687 = 86.602006528   boot/grub/grub.cfg                             2
  25.516487122 = 27.398119424   boot/vmlinuz-4.15.0-34-generic                 1
  27.805557251 = 29.855989760   boot/vmlinuz-4.15.0-36-generic                 1
  38.328994751 = 41.155444736   boot/vmlinuz-4.15.0-38-generic                 1
  38.328994751 = 41.155444736   vmlinuz                                        1
  27.805557251 = 29.855989760   vmlinuz.old                                    1
  26.388572693 = 28.334514176   boot/initrd.img-4.15.0-34-generic              4
  28.052635193 = 30.121287680   boot/initrd.img-4.15.0-36-generic              2
  39.603427887 = 42.523856896   boot/initrd.img-4.15.0-38-generic              1
  39.603427887 = 42.523856896   initrd.img                                     1
  28.052635193 = 30.121287680   initrd.img.old                                 2

=========================== 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

set timeout=5
menuentry "Try Ubuntu without installing" {
	set gfxpayload=keep
	linux	/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
	initrd	/casper/initrd.lz
}
menuentry "Install Ubuntu" {
	set gfxpayload=keep
	linux	/casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
	initrd	/casper/initrd.lz
}
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.lz
}
menuentry "Check disc for defects" {
	set gfxpayload=keep
	linux	/casper/vmlinuz  boot=casper integrity-check quiet splash ---
	initrd	/casper/initrd.lz
}
--------------------------------------------------------------------------------

============================== 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 --- persistent

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

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 --- persistent

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 --- persistent

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

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

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

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

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

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

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

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

=================== 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/14002/mountinfo) leaked on lvs invocation. Parent PID 21418: bash
File descriptor 63 (pipe:[126425]) leaked on lvs invocation. Parent PID 21418: bash

ADDITIONAL INFORMATION :
=================== log of boot-info 20181030_1909 ===================
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 18.04.1 LTS, bionic, Ubuntu, x86_64)
CPU op-mode(s):      32-bit, 64-bit
BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
ls: impossible d'accéder à '/home/usr/.config': Aucun fichier ou dossier de ce type

=================== os-prober:
/dev/sda2:Ubuntu 18.04.1 LTS (18.04):Ubuntu:linux

=================== blkid:
/dev/sda1: UUID="F50B-91EE" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="ccf86741-7aa4-43aa-9b04-1134344d7366"
/dev/sda2: UUID="81bf57b4-e072-4b61-b2f9-d269f5e91e4f" TYPE="ext4" PARTUUID="ffa56f0d-fb7a-4a14-9162-c044b2a983a0"
/dev/sdb1: LABEL="USB DISK" UUID="4AFC-8D27" TYPE="vfat" PARTUUID="c3072e18-01"
/dev/loop0: TYPE="squashfs"
/dev/loop1: TYPE="squashfs"
/dev/loop2: TYPE="squashfs"
/dev/loop3: TYPE="squashfs"
/dev/loop4: TYPE="squashfs"
/dev/loop5: TYPE="squashfs"
/dev/loop6: TYPE="squashfs"
/dev/loop7: TYPE="squashfs"


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

Presence of EFI/Boot file detected: /mnt/boot-sav/sda1/EFI/Boot/bkpbootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda1/EFI/Boot/bootx64.efi
Presence of EFI/Boot file detected: /mnt/boot-sav/sda1/EFI/Boot/fbx64.efi
Presence of bkp file detected: /mnt/boot-sav/sda1/EFI/Boot/bkpbootx64.efi

=================== sda2/etc/grub.d/ :
drwxr-xr-x  2 root root     4096 oct.  30 16:34 grub.d
total 84
-rwxr-xr-x 1 root root  9783 juil. 17 18:13 00_header
-rwxr-xr-x 1 root root  6258 juil. 16 15:15 05_debian_theme
-rwxr-xr-x 1 root root 12693 juil. 17 18:13 10_linux
-rwxr-xr-x 1 root root 11298 juil. 17 18:13 20_linux_xen
-rwxr-xr-x 1 root root  1992 janv. 28  2016 20_memtest86+
-rwxr-xr-x 1 root root   561 sept. 27 20:26 25_custom
-rwxr-xr-x 1 root root 12059 juil. 17 18:13 30_os-prober
-rwxr-xr-x 1 root root  1418 juil. 17 18:13 30_uefi-firmware
-rwxr-xr-x 1 root root   214 juil. 17 18:13 40_custom
-rwxr-xr-x 1 root root   216 juil. 17 18:13 41_custom
-rw-r--r-- 1 root root   483 juil. 17 18:13 README




=================== sda2/etc/default/grub :

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

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

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

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

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

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

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

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



/boot/efi detected in the fstab of sda2: UUID=F50B-91EE	 (sda1)
/usr/share/boot-sav/bs-cmd_terminal.sh: ligne 179: avertissement : command substitution: ignored null byte in input

=================== efibootmgr -v
BootCurrent: 0004
Timeout: 1 seconds
BootOrder: 0004,0000,0001,0003,0002
Boot0000* ubuntu	HD(1,GPT,ccf86741-7aa4-43aa-9b04-1134344d7366,0x800,0x100000)/File(EFIubuntushimx64.efi)
Boot0001* HDD/SSD	PciRoot(0x0)/Pci(0x1f,0x2)/Sata(0,0,0)
Boot0002* Réseau2	PciRoot(0x0)/Pci(0x19,0x0)/MAC(b86b23120c73,0)/IPv4(0.0.0.00.0.0.0,0,0)
Boot0003* Réseau1	PciRoot(0x0)/Pci(0x19,0x0)/MAC(b86b23120c73,0)/IPv6([::]:<->[::]:,0,0)
Boot0004* Mémoire USB	PciRoot(0x0)/Pci(0x14,0x0)/USB(0,0)

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


=================== 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,	grubenv-ok	grub2,	signed grub-pc grub-efi ,	update-grub,	64,	with-boot,	is-os,	not--efi--part,	fstab-without-boot,	fstab-has-goodEFI,	no-nt,	no-winload,	no-recov-nor-hid,	no-bmgr,	notwinboot,	apt-get,	grub-install,	with--usr,	fstab-without-usr,	not-sep-usr,	standard,	farbios,	notbiosboot, /mnt/boot-sav/sda2.

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


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

BYT;
/dev/sda:128GB:scsi:512:512:gpt:ATA TOSHIBA THNSNJ12:;
1:1049kB:538MB:537MB:fat32:EFI System Partition:boot, esp;
2:538MB:128GB:127GB:ext4::;

BYT;
/dev/sdb:4010MB:scsi:512:512:msdos:USB Flash Disk:;
1:28.7kB:4010MB:4010MB:fat32::boot, lba;

=================== lsblk:
KNAME TYPE FSTYPE     SIZE LABEL
loop0 loop squashfs   1,8G
loop1 loop squashfs  86,9M
loop2 loop squashfs  34,7M
loop3 loop squashfs 140,9M
loop4 loop squashfs   2,3M
loop5 loop squashfs    13M
loop6 loop squashfs  14,5M
loop7 loop squashfs   3,7M
sda   disk          119,2G
sda1  part vfat       512M
sda2  part ext4     118,8G
sdb   disk            3,8G
sdb1  part vfat       3,8G USB DISK

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


=================== mount:
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=4024620k,nr_inodes=1006155,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=809160k,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)
/cow on / type overlay (rw,relatime,lowerdir=//filesystem.squashfs,upperdir=/cow/upper,workdir=/cow/work)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
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/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
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/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/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/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=25,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=15647)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (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=809156k,mode=700,uid=999,gid=999)
/var/lib/snapd/snaps/core_4917.snap on /snap/core/4917 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_319.snap on /snap/gtk-common-themes/319 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-26-1604_70.snap on /snap/gnome-3-26-1604/70 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-calculator_180.snap on /snap/gnome-calculator/180 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-characters_103.snap on /snap/gnome-characters/103 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-logs_37.snap on /snap/gnome-logs/37 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-system-monitor_51.snap on /snap/gnome-system-monitor/51 type squashfs (ro,nodev,relatime,x-gdu.hide)
tmpfs on /run/user/121 type tmpfs (rw,nosuid,nodev,relatime,size=809156k,mode=700,uid=121,gid=125)
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 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 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
/dev (filtered):  autofs block bsg btrfs-control bus cdc-wdm1 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-2 i2c-3 i2c-4 i2c-5 i2c-6 i2c-7 i2c-8 initctl input kmsg lightnvm log mapper mcelog media0 mei0 mem memory_bandwidth mqueue net network_latency network_throughput null port ppp psaux ptmx ptp0 pts random rfkill rtc rtc0 sda sda1 sda2 sdb sdb1 sg0 sg1 shm snapshot snd stderr stdin stdout toshiba_acpi tpm0 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 6d 6b 66 73 2e  66 61 74 00 02 08 20 00  |.X.mkfs.fat... .|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 08 00 00  |........?.......|
00000020  00 00 10 00 fe 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 ee 91 0b f5 4e  4f 20 4e 41 4d 45 20 20  |..)....NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 0e 1f be 77 7c ac  |  FAT32   ...w|.|
00000060  22 c0 74 0b 56 b4 0e bb  07 00 cd 10 5e eb f0 32  |".t.V.......^..2|
00000070  e4 cd 16 cd 19 eb fe 54  68 69 73 20 69 73 20 6e  |.......This is n|
00000080  6f 74 20 61 20 62 6f 6f  74 61 62 6c 65 20 64 69  |ot a bootable di|
00000090  73 6b 2e 20 20 50 6c 65  61 73 65 20 69 6e 73 65  |sk.  Please inse|
000000a0  72 74 20 61 20 62 6f 6f  74 61 62 6c 65 20 66 6c  |rt a bootable fl|
000000b0  6f 70 70 79 20 61 6e 64  0d 0a 70 72 65 73 73 20  |oppy and..press |
000000c0  61 6e 79 20 6b 65 79 20  74 6f 20 74 72 79 20 61  |any key to try a|
000000d0  67 61 69 6e 20 2e 2e 2e  20 0d 0a 00 00 00 00 00  |gain ... .......|
000000e0  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  00 00 00 00 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     791M  1.9M  789M   1% /run
/dev/sdb1      vfat      3.8G  2.1G  1.7G  56% /cdrom
/dev/loop0     squashfs  1.8G  1.8G     0 100% /rofs
/cow           overlay   3.9G  432M  3.5G  11% /
tmpfs          tmpfs     3.9G   25M  3.9G   1% /dev/shm
tmpfs          tmpfs     5.0M  8.0K  5.0M   1% /run/lock
tmpfs          tmpfs     3.9G     0  3.9G   0% /sys/fs/cgroup
tmpfs          tmpfs     3.9G  520K  3.9G   1% /tmp
tmpfs          tmpfs     791M   44K  791M   1% /run/user/999
/dev/loop1     squashfs   87M   87M     0 100% /snap/core/4917
/dev/loop2     squashfs   35M   35M     0 100% /snap/gtk-common-themes/319
/dev/loop3     squashfs  141M  141M     0 100% /snap/gnome-3-26-1604/70
/dev/loop4     squashfs  2.4M  2.4M     0 100% /snap/gnome-calculator/180
/dev/loop5     squashfs   13M   13M     0 100% /snap/gnome-characters/103
/dev/loop6     squashfs   15M   15M     0 100% /snap/gnome-logs/37
/dev/loop7     squashfs  3.8M  3.8M     0 100% /snap/gnome-system-monitor/51
tmpfs          tmpfs     791M   12K  791M   1% /run/user/121
/dev/sda1      vfat      511M  8.5M  503M   2% /mnt/boot-sav/sda1
/dev/sda2      ext4      117G   37G   74G  34% /mnt/boot-sav/sda2

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


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


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


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


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


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


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


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


Disk /dev/sda: 119.2 GiB, 128035676160 bytes, 250069680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: D846D6B9-673B-49D5-986D-467147C2B4CF

Device       Start       End   Sectors   Size Type
/dev/sda1     2048   1050623   1048576   512M EFI System
/dev/sda2  1050624 250068991 249018368 118.8G Linux filesystem


Disk /dev/sdb: 3.8 GiB, 4009754624 bytes, 7831552 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: 0xc3072e18

Device     Boot Start     End Sectors  Size Id Type
/dev/sdb1  *       56 7831551 7831496  3.8G  c W95 FAT32 (LBA)




=================== Suggested repair
The default repair of the Boot-Repair utility would reinstall the grub-efi-amd64-signed of sda2, using the following options:        sda1/boot/efi,
Additional repair would be performed: unhide-bootmenu-10s    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 !


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

Tout est correct là-dedans. Ton Ubuntu 18.04 installé devrait démarrer.
Je te prie de donner le nom complet du modèle de cet ordi et son fabricant.

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#4 Le 31/10/2018, à 09:59

Shankar

Re : Perte du boot Ubuntu 18.04

Étrange...

C'est un Toshiba Portégé Z30-A.

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#5 Le 31/10/2018, à 14:07

malbo

Re : Perte du boot Ubuntu 18.04

Je t'ai déjà conseillé de refaire ton installation dans ce post : https://forum.ubuntu-fr.org/viewtopic.p … #p21979892
C'est cette partie du post :
---------------------------------------------------
EDIT_2 : j'ai trouvé cette doc sur ton modèle : https://www.manualslib.com/manual/73652 … Z30-A.html
On y voit qu'il est possible de passer le Boot Mode sur "CSM Boot" (au lieu de "UEFI Boot" par défaut). Si un jour tu envisages de réinstaller un Ubuntu tout neuf dans ton ordi, ça pourrait être l'occasion de passer le Boot Mode sur "CSM Boot" et de faire l'installation de Ubuntu dans ce mode. L'avantage d'installer dans ce mode, c'est qu'il n'y aurait plus besoin de bidouiller pour contourner le verrouillage de ton système UEFI comme tu as été obligé de le faire en 2015 et que tu es encore obligé de le faire en 2018. "CSM Boot", c'est plus simple quand il n'y a que Ubuntu tout seul dans l'ordi.
-----------------------------------------------------
C'est le moment de réinstaller un Ubuntu tout neuf...

Dernière modification par malbo (Le 31/10/2018, à 14:08)

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#6 Le 07/07/2021, à 19:17

Shankar

Re : Perte du boot Ubuntu 18.04

Bonjour,

Pendant 3 ans, la solution de Malbo a parfaitement fonctionné à chaque fois que j'ai rencontré ce même problème.
Cependant, depuis hier, je n'arrive plus à booter sur une clé USB live, ce qui ne me permet pas d'accéder a un terminal et du coup ne me permet pas de mettre en oeuvre la solution...

Je vais me procurer un nouvelle clé usb pour voir si ce n'est pas la mienne qui merdouille.
En attendant....quelqu'un aurait une idée ?

Merci d'avance !


Shankar

Dernière modification par Shankar (Le 07/07/2021, à 19:17)

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