Ubuntu
ubuntu-docs package

problème d'installation grub 2

Asked by Jeffrey Ilien on 2018-11-17

Je ne m'y connais pas trop en problème de grub2 mais ça m'affiche une erreur. J'ai fais un report avec le rapair boot alors je vous le partage :

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 (5.00 and higher) is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

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

sda2: __________________________________________________________________________

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

sda3: __________________________________________________________________________

    File system:
    Boot sector type: -
    Boot sector info:
    Mounting failed: mount: /mnt/BootInfo/sda3: unknown filesystem type ''.

sda4: __________________________________________________________________________

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

sda5: __________________________________________________________________________

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

sda6: __________________________________________________________________________

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

sda7: __________________________________________________________________________

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

sdb1: __________________________________________________________________________

    File system: vfat
    Boot sector type: SYSLINUX 6.03
    Boot sector info: Syslinux looks at sector 16392 of /dev/sdb1 for its
                       second stage. The integrity check of Syslinux failed.
                       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 / 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 1 250,069,679 250,069,679 ee GPT

GUID Partition Table detected.

Partition Attrs Start Sector End Sector # of Sectors System
/dev/sda1 R 2,048 923,647 921,600 Windows Recovery Environment (Windows)
/dev/sda2 923,648 1,128,447 204,800 EFI System partition
/dev/sda3 1,128,448 1,161,215 32,768 Microsoft Reserved Partition (Windows)
/dev/sda4 1,161,216 187,152,383 185,991,168 Data partition (Windows/Linux)
/dev/sda5 187,152,384 217,151,487 29,999,104 Data partition (Linux)
/dev/sda6 217,151,488 237,152,255 20,000,768 Data partition (Linux)
/dev/sda7 237,152,256 250,068,991 12,916,736 Swap partition (Linux)

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

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 3.8 GiB, 4089446400 bytes, 7987200 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 7,987,199 7,985,152 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 F2B86EC0B86E8349 ntfs Récupération
/dev/sda2 E470-56FB vfat
/dev/sda3
/dev/sda4 FA1274921274559B ntfs
/dev/sda5 bddfede7-ab7e-422f-9ebf-0f7997b7c51a ext4
/dev/sda6 5756ceb3-3423-4940-bf85-8527bc5dff3f ext4
/dev/sda7 6192a222-8e78-4b20-a958-3d27d7b3efd5 swap
/dev/sdb1 B23B-873B vfat UBUNTU 18_0

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

total 0
lrwxrwxrwx 1 root root 9 Nov 17 19:47 ata-SanDisk_SD8SN8U-128G-1006_1730A1802579 -> ../../sda
lrwxrwxrwx 1 root root 10 Nov 17 19:47 ata-SanDisk_SD8SN8U-128G-1006_1730A1802579-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Nov 17 19:47 ata-SanDisk_SD8SN8U-128G-1006_1730A1802579-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Nov 17 19:47 ata-SanDisk_SD8SN8U-128G-1006_1730A1802579-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Nov 17 19:47 ata-SanDisk_SD8SN8U-128G-1006_1730A1802579-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Nov 17 19:47 ata-SanDisk_SD8SN8U-128G-1006_1730A1802579-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Nov 17 19:47 ata-SanDisk_SD8SN8U-128G-1006_1730A1802579-part6 -> ../../sda6
lrwxrwxrwx 1 root root 10 Nov 17 19:47 ata-SanDisk_SD8SN8U-128G-1006_1730A1802579-part7 -> ../../sda7
lrwxrwxrwx 1 root root 9 Nov 17 19:47 usb-Generic_Flash_Disk_A2FC3657-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Nov 17 19:47 usb-Generic_Flash_Disk_A2FC3657-0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 9 Nov 17 19:47 wwn-0x5001b448b4d9f142 -> ../../sda
lrwxrwxrwx 1 root root 10 Nov 17 19:47 wwn-0x5001b448b4d9f142-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Nov 17 19:47 wwn-0x5001b448b4d9f142-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Nov 17 19:47 wwn-0x5001b448b4d9f142-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 Nov 17 19:47 wwn-0x5001b448b4d9f142-part4 -> ../../sda4
lrwxrwxrwx 1 root root 10 Nov 17 19:47 wwn-0x5001b448b4d9f142-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 Nov 17 19:47 wwn-0x5001b448b4d9f142-part6 -> ../../sda6
lrwxrwxrwx 1 root root 10 Nov 17 19:47 wwn-0x5001b448b4d9f142-part7 -> ../../sda7

================================ 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)

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

--------------------------------------------------------------------------------
search.fs_uuid bddfede7-ab7e-422f-9ebf-0f7997b7c51a root hd0,gpt5
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
--------------------------------------------------------------------------------

=============================== 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=bddfede7-ab7e-422f-9ebf-0f7997b7c51a / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda2 during installation
UUID=E470-56FB /boot/efi vfat umask=0077 0 1
# /home was on /dev/sda6 during installation
UUID=5756ceb3-3423-4940-bf85-8527bc5dff3f /home ext4 defaults 0 2
# swap was on /dev/sda7 during installation
UUID=6192a222-8e78-4b20-a958-3d27d7b3efd5 none swap sw 0 0
--------------------------------------------------------------------------------

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

GiB - GB File Fragment(s)

  91.498897552 = 98.246193152 boot/vmlinuz-4.15.0-29-generic 1
  91.498897552 = 98.246193152 vmlinuz 1
  97.842670441 = 105.057767424 boot/initrd.img-4.15.0-29-generic 3
  97.842670441 = 105.057767424 initrd.img 3
  97.842670441 = 105.057767424 initrd.img.old 3

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

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

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

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

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 loadconfig

LABEL loadconfig
CONFIG /isolinux/isolinux.cfg
APPEND /isolinux/
--------------------------------------------------------------------------------

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

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

File descriptor 9 (/proc/5378/mountinfo) leaked on lvs invocation. Parent PID 16434: bash
File descriptor 63 (pipe:[73349]) leaked on lvs invocation. Parent PID 16434: bash

ADDITIONAL INFORMATION :
=================== log of boot-info 20181117_1947 ===================
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: cannot access '/home/usr/.config': No such file or directory
The disk contains an unclean file system (0, 0).
Metadata kept in Windows cache, refused to mount.
Falling back to read-only mount because the NTFS partition is in an
unsafe state. Please resume and shutdown Windows fully (no hibernation
or fast restarting.)
Windows is hibernated, refused to mount.
The disk contains an unclean file system (0, 0).
Metadata kept in Windows cache, refused to mount.
Falling back to read-only mount because the NTFS partition is in an
unsafe state. Please resume and shutdown Windows fully (no hibernation
or fast restarting.)

=================== os-prober:
/dev/sda2@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
/dev/sda5:Ubuntu 18.04.1 LTS (18.04):Ubuntu:linux

=================== blkid:
/dev/sda1: LABEL="RM-CM-)cupM-CM-)ration" UUID="F2B86EC0B86E8349" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="47e68721-a80d-4242-b6f4-f073457a57c7"
/dev/sda2: UUID="E470-56FB" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="1bb4b803-5632-4fe1-a55a-b3c5df0ff2c7"
/dev/sda4: UUID="FA1274921274559B" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="14492276-d8bf-44f0-8841-60a0f200f067"
/dev/sda5: UUID="bddfede7-ab7e-422f-9ebf-0f7997b7c51a" TYPE="ext4" PARTUUID="e20347e2-4b3c-4aee-880c-dae53e195b9c"
/dev/sda6: UUID="5756ceb3-3423-4940-bf85-8527bc5dff3f" TYPE="ext4" PARTUUID="73159dc7-14b5-4a3a-aec3-3cc5151ceb88"
/dev/sdb1: LABEL="UBUNTU 18_0" UUID="B23B-873B" TYPE="vfat" PARTUUID="0006aef0-01"
/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"
/dev/sda7: UUID="6192a222-8e78-4b20-a958-3d27d7b3efd5" TYPE="swap" PARTUUID="d620fb3e-38fb-4c8a-8a3d-4eb6b2cfa364"
/dev/sda3: PARTLABEL="Microsoft reserved partition" PARTUUID="66a4b913-c778-4126-8a8f-90c3b4c46201"

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

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

=================== sda5/etc/grub.d/ :
drwxr-xr-x 2 root root 4096 Jul 25 03:08 grub.d
total 80
-rwxr-xr-x 1 root root 9783 Jul 17 18:13 00_header
-rwxr-xr-x 1 root root 6258 Jul 16 15:15 05_debian_theme
-rwxr-xr-x 1 root root 12693 Jul 17 18:13 10_linux
-rwxr-xr-x 1 root root 11298 Jul 17 18:13 20_linux_xen
-rwxr-xr-x 1 root root 1992 Jan 28 2016 20_memtest86+
-rwxr-xr-x 1 root root 12059 Jul 17 18:13 30_os-prober
-rwxr-xr-x 1 root root 1418 Jul 17 18:13 30_uefi-firmware
-rwxr-xr-x 1 root root 214 Jul 17 18:13 40_custom
-rwxr-xr-x 1 root root 216 Jul 17 18:13 41_custom
-rw-r--r-- 1 root root 483 Jul 17 18:13 README

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

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

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

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

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

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

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

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

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

/boot/efi detected in the fstab of sda5: UUID=E470-56FB (sda2)
/usr/share/boot-sav/bs-cmd_terminal.sh: line 179: warning: command substitution: ignored null byte in input

=================== efibootmgr -v
BootCurrent: 0004
Timeout: 0 seconds
BootOrder: 0004,0000,0003,2003,2001,2002
Boot0000* ubuntu HD(2,GPT,1bb4b803-5632-4fe1-a55a-b3c5df0ff2c7,0xe1800,0x32000)/File(EFIubuntushimx64.efi)RC
Boot0001* EFI Network 0 for IPv4 (48-BA-4E-EC-32-C9) PciRoot(0x0)/Pci(0x13,0x0)/Pci(0x0,0x0)/MAC(48ba4eec32c9,0)/IPv4(0.0.0.00.0.0.0,0,0)RC
Boot0002* EFI Network 0 for IPv6 (48-BA-4E-EC-32-C9) PciRoot(0x0)/Pci(0x13,0x0)/Pci(0x0,0x0)/MAC(48ba4eec32c9,0)/IPv6([::]:<->[::]:,0,0)RC
Boot0003* Windows Boot Manager HD(2,GPT,1bb4b803-5632-4fe1-a55a-b3c5df0ff2c7,0xe1800,0x32000)/File(EFIMicrosoftBootbootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...a................
Boot0004* Linpus lite HD(1,MBR,0x6aef0,0x800,0x79d800)/File(EFIBootgrubx64.efi)RC
Boot2001* EFI USB Device RC
Boot2002* EFI DVD/CDROM RC
Boot2003* EFI Network RC

=================== UEFI/Legacy mode:
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot disabled. (maybe sec-boot, Please report this message to <email address hidden>)

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

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

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

BYT;
/dev/sda:128GB:scsi:512:4096:gpt:ATA SanDisk SD8SN8U-:;
1:1049kB:473MB:472MB:ntfs:Basic data partition:hidden, diag;
2:473MB:578MB:105MB:fat32:EFI system partition:boot, esp;
3:578MB:595MB:16.8MB::Microsoft reserved partition:msftres;
4:595MB:95.8GB:95.2GB:ntfs:Basic data partition:msftdata;
5:95.8GB:111GB:15.4GB:ext4::;
6:111GB:121GB:10.2GB:ext4::;
7:121GB:128GB:6613MB:linux-swap(v1)::;

BYT;
/dev/sdb:4089MB:scsi:512:512:msdos:Generic Flash Disk:;
1:1049kB:4089MB:4088MB: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 ntfs 450M Récupération
sda2 part vfat 100M
sda3 part 16M
sda4 part ntfs 88.7G
sda5 part ext4 14.3G
sda6 part ext4 9.6G
sda7 part swap 6.2G
sdb disk 3.8G
sdb1 part vfat 3.8G UBUNTU 18_0

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
sda3 0 0 0
sda4 0 0 0 /mnt/boot-sav/sda4
sda5 0 0 0 /mnt/boot-sav/sda5
sda6 0 0 0 /mnt/boot-sav/sda6
sda7 0 0 0 [SWAP]
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=1902684k,nr_inodes=475671,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=384772k,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/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
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/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=26,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=14282)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
mqueue on /dev/mqueue type mqueue (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
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=384768k,mode=700,uid=999,gid=999)
gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=999,group_id=999)
/var/lib/snapd/snaps/core_4917.snap on /snap/core/4917 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_319.snap on /snap/gtk-common-themes/319 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-26-1604_70.snap on /snap/gnome-3-26-1604/70 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-calculator_180.snap on /snap/gnome-calculator/180 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-characters_103.snap on /snap/gnome-characters/103 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-logs_37.snap on /snap/gnome-logs/37 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-system-monitor_51.snap on /snap/gnome-system-monitor/51 type squashfs (ro,nodev,relatime,x-gdu.hide)
/dev/sda1 on /mnt/boot-sav/sda1 type fuseblk (ro,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda2 on /mnt/boot-sav/sda2 type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda4 on /mnt/boot-sav/sda4 type fuseblk (ro,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda5 on /mnt/boot-sav/sda5 type ext4 (rw,relatime,data=ordered)
/dev/sda6 on /mnt/boot-sav/sda6 type ext4 (rw,relatime,data=ordered)

=================== ls:
/sys/block/sda (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity power queue range removable ro sda1 sda2 sda3 sda4 sda5 sda6 sda7 size slaves stat subsystem trace uevent
/sys/block/sdb (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range hidden holders inflight integrity power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/dev (filtered): HID-SENSOR-2000e1.1.auto HID-SENSOR-2000e1.10.auto HID-SENSOR-2000e1.12.auto HID-SENSOR-2000e1.13.auto HID-SENSOR-2000e1.18.auto HID-SENSOR-2000e1.19.auto HID-SENSOR-2000e1.2.auto HID-SENSOR-2000e1.4.auto HID-SENSOR-2000e1.5.auto HID-SENSOR-2000e1.6.auto HID-SENSOR-2000e1.7.auto acpi_thermal_rel autofs block bsg btrfs-control bus char console core cpu cpu_dma_latency cuse disk dri drm_dp_aux0 ecryptfs fb0 fd full fuse gpiochip0 gpiochip1 gpiochip2 gpiochip3 hidraw0 hpet hugepages hwrng i2c-0 i2c-1 i2c-2 i2c-3 i2c-4 i2c-5 iio:device0 iio:device1 iio:device2 iio:device3 iio:device4 iio:device5 initctl input kmsg lightnvm log mapper mcelog media0 mei0 mem memory_bandwidth mqueue net network_latency network_throughput null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sda2 sda3 sda4 sda5 sda6 sda7 sdb sdb1 sg0 sg1 shm snapshot snd stderr stdin stdout tpm0 tpmrm0 uhid uinput urandom userio v4l vfio vga_arbiter vhci vhost-net vhost-vsock video0 zero
ls /dev/mapper: control

=================== hexdump -n512 -C /dev/sda2
00000000 eb 58 90 4d 53 44 4f 53 35 2e 30 00 02 02 fe 19 |.X.MSDOS5.0.....|
00000010 02 00 00 00 00 f8 00 00 3f 00 ff 00 00 18 0e 00 |........?.......|
00000020 00 20 03 00 01 03 00 00 00 00 00 00 02 00 00 00 |. ..............|
00000030 01 00 06 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000040 80 01 29 fb 56 70 e4 4e 4f 20 4e 41 4d 45 20 20 |..).Vp.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 |.<email address hidden>|
00000170 54 4d 47 52 20 20 20 20 00 00 00 00 00 00 00 00 |TMGR ........|
00000180 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000001a0 00 00 00 00 00 00 00 00 00 00 00 00 0d 0a 45 72 |..............Er|
000001b0 72 2e 20 64 69 73 71 75 65 ff 0d 0a 50 72 65 73 |r. disque...Pres|
000001c0 73 65 7a 20 75 6e 65 20 74 6f 75 63 68 65 20 70 |sez une touche p|
000001d0 6f 75 72 20 72 65 64 82 6d 61 72 72 65 72 0d 0a |our red.marrer..|
000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 00 00 ac 01 ba 01 00 00 55 aa |..............U.|
00000200

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

Filesystem Type Size Used Avail Use% Mounted on
udev devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs tmpfs 376M 1.7M 375M 1% /run
/dev/sdb1 vfat 3.8G 1.9G 2.0G 48% /cdrom
/dev/loop0 squashfs 1.8G 1.8G 0 100% /rofs
/cow overlay 1.9G 408M 1.5G 22% /
tmpfs tmpfs 1.9G 32M 1.9G 2% /dev/shm
tmpfs tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
tmpfs tmpfs 1.9G 4.0K 1.9G 1% /tmp
tmpfs tmpfs 376M 44K 376M 1% /run/user/999
/dev/loop1 squashfs 87M 87M 0 100% /snap/core/4917
/dev/loop2 squashfs 35M 35M 0 100% /snap/gtk-common-themes/319
/dev/loop3 squashfs 141M 141M 0 100% /snap/gnome-3-26-1604/70
/dev/loop4 squashfs 2.4M 2.4M 0 100% /snap/gnome-calculator/180
/dev/loop5 squashfs 13M 13M 0 100% /snap/gnome-characters/103
/dev/loop6 squashfs 15M 15M 0 100% /snap/gnome-logs/37
/dev/loop7 squashfs 3.8M 3.8M 0 100% /snap/gnome-system-monitor/51
/dev/sda1 fuseblk 450M 301M 150M 67% /mnt/boot-sav/sda1
/dev/sda2 vfat 96M 29M 68M 30% /mnt/boot-sav/sda2
/dev/sda4 fuseblk 89G 30G 60G 33% /mnt/boot-sav/sda4
/dev/sda5 ext4 15G 3.9G 9.5G 29% /mnt/boot-sav/sda5
/dev/sda6 ext4 9.4G 37M 8.8G 1% /mnt/boot-sav/sda6

=================== 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 / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 6CA8B134-1F93-40F8-8885-65117A307981

Device Start End Sectors Size Type
/dev/sda1 2048 923647 921600 450M Windows recovery environment
/dev/sda2 923648 1128447 204800 100M EFI System
/dev/sda3 1128448 1161215 32768 16M Microsoft reserved
/dev/sda4 1161216 187152383 185991168 88.7G Microsoft basic data
/dev/sda5 187152384 217151487 29999104 14.3G Linux filesystem
/dev/sda6 217151488 237152255 20000768 9.6G Linux filesystem
/dev/sda7 237152256 250068991 12916736 6.2G Linux swap

Disk /dev/sdb: 3.8 GiB, 4089446400 bytes, 7987200 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: 0x0006aef0

Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 2048 7987199 7985152 3.8G c W95 FAT32 (LBA)

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

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

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

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