Bonjour,
J'allais faire un "secure boot" et en démarrant mon ordinateur, miracle le cd de "boot repar disk" à démarrer.
Du coup je vous met le rapport du boot info :
Boot Info Script 8f991e4 + Boot-Repair extra info [Boot-Info 25oct2017]
============================= Boot Info Summary: ===============================
=> libparted MBR boot code is installed in the MBR of /dev/sda.
sda1: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 18.04.2 LTS
Boot files: /etc/fstab
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 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/sda1 2,048 976,771,071 976,769,024 83 Linux
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 4435c005-fcba-4c76-932d-342b8706e700 ext4
/dev/sr0 2017-10-29-00-56-18-00 iso9660 Boot-Repair-Disk 64bit
/dev/zram0 53a643e4-e01d-45a3-a0ee-f7a63106bbe9 swap
/dev/zram1 284ea31f-18cb-46c9-b0ec-40540f647ae9 swap
========================= "ls -l /dev/disk/by-id" output: ======================
total 0
lrwxrwxrwx 1 root root 9 Apr 6 20:16 ata-Optiarc_DVD_RW_AD-7580S_30656330_2161756Q112 -> ../../sr0
lrwxrwxrwx 1 root root 9 Apr 6 20:17 ata-WDC_WD5000BEVT-22ZAT0_WD-WXN309SC9479 -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 6 20:17 ata-WDC_WD5000BEVT-22ZAT0_WD-WXN309SC9479-part1 -> ../../sda1
lrwxrwxrwx 1 root root 9 Apr 6 20:17 wwn-0x50014ee2ad4c1117 -> ../../sda
lrwxrwxrwx 1 root root 10 Apr 6 20:17 wwn-0x50014ee2ad4c1117-part1 -> ../../sda1
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sr0 /cdrom iso9660 (ro,noatime,nojoliet,check=s,map=n,blocksize=2048)
=============================== sda1/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/sda1 during installation
UUID=4435c005-fcba-4c76-932d-342b8706e700 / ext4 errors=remount-ro 0 1
/swapfile none swap sw 0 0
--------------------------------------------------------------------------------
merci.
