Oui et ça m'exaspère.... la dernière fois, c'était aussi suite à une MAJ de Windows. Sauf que Boot Repair avait marché, mais là non.
Voilà ce que me donne Boot Info :
Code : Tout sélectionner
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.
=> Grub2 (v1.99-2.00) is installed in the MBR of /dev/sdb and looks at sector
830525096 of the same hard drive for core.img, but core.img can not be
found at this location.
=> Syslinux MBR (4.04-4.07) is installed in the MBR of /dev/sdc.
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:
sdb1: __________________________________________________________________________
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:
sdb2: __________________________________________________________________________
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/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
sdb3: __________________________________________________________________________
File system:
Boot sector type: -
Boot sector info:
Mounting failed: mount: /mnt/BootInfo/sdb3: unknown filesystem type ''.
sdb4: __________________________________________________________________________
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: /Windows/System32/winload.exe
sdb5: __________________________________________________________________________
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:
sdb6: __________________________________________________________________________
File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed: mount: /mnt/BootInfo/sdb3: unknown filesystem type ''.
mount: /mnt/BootInfo/sdb6: unknown filesystem type ''.
sdc1: __________________________________________________________________________
File system: vfat
Boot sector type: SYSLINUX 4.07 2013-07-25
Boot sector info: Syslinux looks at sector 1816196 of /dev/sdc1 for its
second stage. SYSLINUX is installed in the /uui
directory. No errors found in the Boot Parameter Block.
Operating System:
Boot files: /boot/grub/grub.cfg /casper/vmlinuz.efi
/EFI/BOOT/grubx64.efi
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 1 4,294,967,295 4,294,967,295 ee GPT
/dev/sda1 ends after the last sector of /dev/sda
GUID Partition Table detected.
Partition Attrs Start Sector End Sector # of Sectors System
/dev/sda1 2,048 1,953,523,711 1,953,521,664 Data partition (Windows/Linux)
Attributes: R=Required, N=No Block IO, B=Legacy BIOS Bootable, +=More bi