#1 Le 23/03/2015, à 20:29
- malou
[Resolu]Perte de partition encrytptee LUKS apres erreur de reformatage
Bonjour
En demarrant mon pc, je me suis retrouver devant un Error : unknown filesystem... Enter Recovery mode.
Apres reflexion, mon probleme est probablement du a une erreur de ma part en essayant de reformater un disque dur externe. Je m'explique : j'ai voulu reformater un disque dur externe avec Gparted hier, et apres un message d'erreur, j'y suis parvenu. Je suppose que ce message d'erreur est apparu a un moment ou j'ai essayer de formater mon propre disque dur, celui interne, sur lequel mon systeme tourne. Aucun probleme subsequent n'est arrive jusqu'a ce que j'arrete mon pc, puis essaye de le redemarrer. Je suppose donc que toutes mes donnes sont toujours sur le disque dur, mais que mon systeme de partition est corrompu/non reconnu.
J'ai commence par lancer boot-repair-disk en live session, qui ne m'a pas enormement aide mais m'a fourni le log suivant
Boot Info Script e7fc706 + Boot-Repair extra info [Boot-Info 23Nov2014]
============================= Boot Info Summary: ===============================
=> Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for (,msdos1)/grub.
=> FreeDOS (eXtended FDisk) is installed in the MBR of /dev/sdb.
sda1: __________________________________________________________________________
File system:
Boot sector type: -
Boot sector info:
Mounting failed: mount: unknown filesystem type ''
sdb1: __________________________________________________________________________
File system: vfat
Boot sector type: SYSLINUX 4.03 2010-10-22 ........>..sr>.......u.v7...0...~.....~...f...M.f.f....f..0~....>E}.u......
Boot sector info: Syslinux looks at sector 14756426 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 /casper/vmlinuz.efi
/EFI/BOOT/grubx64.efi /ldlinux.sys
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 240.1 GB, 240057409536 bytes
255 heads, 63 sectors/track, 29185 cylinders, total 468862128 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 2,048 468,860,927 468,858,880 b W95 FAT32
Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 7747 MB, 7747397632 bytes
32 heads, 63 sectors/track, 7505 cylinders, total 15131636 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdb1 * 63 15,130,079 15,130,017 b W95 FAT32
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sdb1 7FC0-5044 vfat KINGSTON
/dev/zram0 c1f085a8-afe8-4edd-82b4-9c5888ea063a swap
/dev/zram1 4a4757c7-f19b-4037-ae3d-2f00e6bca4c1 swap
/dev/zram2 32e2ecd8-378e-415f-80d4-3e1caa7da53e swap
/dev/zram3 26b1879d-627d-4041-8dfa-07d9383c1330 swap
/dev/zram4 c8d0d472-6f1d-4460-8025-0da23a743cf0 swap
/dev/zram5 674b0aca-5967-4a9b-90e4-664520205ed7 swap
/dev/zram6 0fdf0612-31c7-40ea-9bc7-725b4ebac114 swap
/dev/zram7 a5851c5a-c60e-4f37-8002-4461c3369c68 swap
========================= "ls -l /dev/disk/by-id" output: ======================
total 0
lrwxrwxrwx 1 root root 9 Mar 23 17:05 ata-KINGSTON_SV300S37A240G_50026B7242045BE7 -> ../../sda
lrwxrwxrwx 1 root root 10 Mar 23 17:05 ata-KINGSTON_SV300S37A240G_50026B7242045BE7-part1 -> ../../sda1
lrwxrwxrwx 1 root root 9 Mar 23 17:05 ata-Slimtype_DVD_A_DU8A5SH_672330403191 -> ../../sr0
lrwxrwxrwx 1 root root 9 Mar 23 17:05 usb-Kingston_DataTraveler_2.0_60A44C3FB03BFF11898F3192-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Mar 23 17:05 usb-Kingston_DataTraveler_2.0_60A44C3FB03BFF11898F3192-0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 9 Mar 23 17:05 wwn-0x50026b7242045be7 -> ../../sda
lrwxrwxrwx 1 root root 10 Mar 23 17:05 wwn-0x50026b7242045be7-part1 -> ../../sda1
================================ 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)
=========================== 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
menuentry "Boot-Repair-Disk session" {
set gfxpayload=keep
linux /casper/vmlinuz.efi file=/cdrom/preseed/lubuntu.seed boot=casper 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/lubuntu.seed boot=casper quiet splash --
label ubnentry0
menu label ^Help
kernel /ubnkern
append initrd=/ubninit
label ubnentry1
menu label ^64bit session
kernel /casper/vmlinuz.efi
append initrd=/casper/initrd.lz file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash --
label ubnentry2
menu label ^64bit session (failsafe)
kernel /casper/vmlinuz.efi
append initrd=/casper/initrd.lz file=/cdrom/preseed/lubuntu.seed boot=casper noapic noapm nodma nomce nolapic nomodeset nosmp vga=normal --
label ubnentry3
menu label Boot-Repair-Disk session
kernel /casper/vmlinuz.efi
append initrd=/casper/initrd.lz file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash --
--------------------------------------------------------------------------------
============== sdb1: Version of COM32(R) files used by Syslinux: ===============
menu.c32 : COM32R module (v4.xx)
=============================== StdErr Messages: ===============================
cat: write error: Broken pipe
File descriptor 9 (/proc/2027/mounts) leaked on lvs invocation. Parent PID 7705: bash
File descriptor 63 (pipe:[23365]) leaked on lvs invocation. Parent PID 7705: bash
No volume groups found
ADDITIONAL INFORMATION :
=================== log of boot-repair 2015-03-23__17h05 ===================
boot-repair version : 4ppa14
boot-sav version : 4ppa14
glade2script version : 3.2.2~ppa47~saucy
boot-sav-extra version : 4ppa14
File descriptor 9 (/proc/2027/mounts) leaked on lvs invocation. Parent PID 4618: /bin/sh
No volume groups found
boot-repair is executed in live-session (Boot-Repair-Disk 64bit 29nov2014, trusty, Ubuntu, x86_64)
ls: cannot access /home/usr/.config: No such file or directory
CPU op-mode(s): 32-bit, 64-bit
initrd=/ubninit file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash -- BOOT_IMAGE=/ubnkern
=================== os-prober:
=================== blkid:
/dev/loop0: TYPE="squashfs"
/dev/sdb1: LABEL="KINGSTON" UUID="7FC0-5044" TYPE="vfat"
/dev/zram0: UUID="c1f085a8-afe8-4edd-82b4-9c5888ea063a" TYPE="swap"
/dev/zram1: UUID="4a4757c7-f19b-4037-ae3d-2f00e6bca4c1" TYPE="swap"
/dev/zram2: UUID="32e2ecd8-378e-415f-80d4-3e1caa7da53e" TYPE="swap"
/dev/zram3: UUID="26b1879d-627d-4041-8dfa-07d9383c1330" TYPE="swap"
/dev/zram4: UUID="c8d0d472-6f1d-4460-8025-0da23a743cf0" TYPE="swap"
/dev/zram5: UUID="674b0aca-5967-4a9b-90e4-664520205ed7" TYPE="swap"
/dev/zram6: UUID="0fdf0612-31c7-40ea-9bc7-725b4ebac114" TYPE="swap"
/dev/zram7: UUID="a5851c5a-c60e-4f37-8002-4461c3369c68" TYPE="swap"
=================== UEFI/Legacy mode:
This live-session is not in EFI-mode.
SecureBoot maybe enabled.
=================== PARTITIONS & DISKS:
=================== parted -l:
Model: ATA KINGSTON SV300S3 (scsi)
Disk /dev/sda: 240GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 1049kB 240GB 240GB primary
Model: Kingston DataTraveler 2.0 (scsi)
Disk /dev/sdb: 7747MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 7747MB 7747MB primary fat32 boot
Error: /dev/zram0: unrecognised disk label
Error: /dev/zram1: unrecognised disk label
Error: /dev/zram2: unrecognised disk label
Error: /dev/zram3: unrecognised disk label
Error: /dev/zram4: unrecognised disk label
Error: /dev/zram5: unrecognised disk label
Error: /dev/zram6: unrecognised disk label
Error: /dev/zram7: unrecognised disk label
=================== parted -lm:
BYT;
/dev/sda:240GB:scsi:512:512:msdos:ATA KINGSTON SV300S3;
1:1049kB:240GB:240GB:::;
BYT;
/dev/sdb:7747MB:scsi:512:512:msdos:Kingston DataTraveler 2.0;
1:32.3kB:7747MB:7747MB:fat32::boot;
Error: /dev/zram0: unrecognised disk label
Error: /dev/zram1: unrecognised disk label
Error: /dev/zram2: unrecognised disk label
Error: /dev/zram3: unrecognised disk label
Error: /dev/zram4: unrecognised disk label
Error: /dev/zram5: unrecognised disk label
Error: /dev/zram6: unrecognised disk label
Error: /dev/zram7: unrecognised disk label
=================== mount:
/cow on / type overlayfs (rw)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
/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)
none on /sys/fs/cgroup type tmpfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
none on /sys/fs/pstore type pstore (rw)
systemd on /sys/fs/cgroup/systemd type cgroup (rw,noexec,nosuid,nodev,none,name=systemd)
gvfsd-fuse on /run/user/999/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=lubuntu)
=================== ls:
/sys/block/sda (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight power queue range removable ro sda1 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 power queue range removable ro sdb1 size slaves stat subsystem trace uevent
/sys/block/sr0 (filtered): alignment_offset bdi capability dev device discard_alignment events events_async events_poll_msecs ext_range holders inflight power queue range removable ro size slaves stat subsystem trace uevent
/dev (filtered): autofs block bsg btrfs-control bus cdrom char console core cpu cpu_dma_latency cuse disk dri ecryptfs fb0 fd full fuse hpet input kmsg kvm log mapper mcelog mei mem net network_latency network_throughput null port ppp psaux ptmx pts random rfkill rtc rtc0 sda sda1 sdb sdb1 sg0 sg1 sg2 shm snapshot snd sr0 stderr stdin stdout uhid uinput urandom v4l vga_arbiter vhci vhost-net video0 watchdog watchdog0 zero
ls /dev/mapper: control
=================== df -Th:
Filesystem Type Size Used Avail Use% Mounted on
/cow overlayfs 3.9G 5.2M 3.9G 1% /
udev devtmpfs 3.9G 12K 3.9G 1% /dev
tmpfs tmpfs 787M 1.1M 785M 1% /run
/dev/sdb1 vfat 7.3G 1.3G 6.0G 18% /cdrom
/dev/loop0 squashfs 549M 549M 0 100% /rofs
none tmpfs 4.0K 0 4.0K 0% /sys/fs/cgroup
tmpfs tmpfs 3.9G 8.0K 3.9G 1% /tmp
none tmpfs 5.0M 0 5.0M 0% /run/lock
none tmpfs 3.9G 0 3.9G 0% /run/shm
none tmpfs 100M 16K 100M 1% /run/user
=================== fdisk -l:
Disk /dev/sda: 240.1 GB, 240057409536 bytes
255 heads, 63 sectors/track, 29185 cylinders, total 468862128 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 identifier: 0x000456ec
Device Boot Start End Blocks Id System
/dev/sda1 2048 468860927 234429440 b W95 FAT32
Disk /dev/sdb: 7747 MB, 7747397632 bytes
32 heads, 63 sectors/track, 7505 cylinders, total 15131636 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 identifier: 0x59651ba7
Device Boot Start End Blocks Id System
/dev/sdb1 * 63 15130079 7565008+ b W95 FAT32
Error: no partitions
=================== Suggested repair
The default repair of the Boot-Repair utility would not act on the MBR.
Additional repair would be performed: repair-filesystems
=================== User settings
The settings chosen by the user will not act on the boot.J'ai par la suite redemarrer sur une live session d'ubuntu de laquelle j'ai pu tirer les infos suivantes :
sfdisk
Disk /dev/sda: 29185 cylinders, 255 heads, 63 sectors/track
Units = sectors of 512 bytes, counting from 0
Device Boot Start End #sectors Id System
/dev/sda1 2048 468860927 468858880 b W95 FAT32
/dev/sda2 0 - 0 0 Empty
/dev/sda3 0 - 0 0 Empty
/dev/sda4 0 - 0 0 Empty
Disk /dev/sdb: 1021 cylinders, 239 heads, 62 sectors/track
Warning: The partition table looks like it was made
for C/H/S=*/32/63 (instead of 1021/239/62).
For this listing I'll assume that geometry.
Units = sectors of 512 bytes, counting from 0
Device Boot Start End #sectors Id System
/dev/sdb1 * 63 15130079 15130017 b W95 FAT32
end: (c,h,s) expected (1023,31,63) found (336,31,63)
/dev/sdb2 0 - 0 0 Empty
/dev/sdb3 0 - 0 0 Empty
/dev/sdb4 0 - 0 0 Emptyubuntu@ubuntu:~$ udisks --show-info /dev/sda
Showing information for /org/freedesktop/UDisks/devices/sda
native-path: /sys/devices/pci0000:00/0000:00:1f.2/ata1/host0/target0:0:0/0:0:0:0/block/sda
device: 8:0
device-file: /dev/sda
presentation: /dev/sda
by-id: /dev/disk/by-id/ata-KINGSTON_SV300S37A240G_50026B7242045BE7
by-id: /dev/disk/by-id/wwn-0x50026b7242045be7
detected at: Mon 23 Mar 2015 06:16:32 PM UTC
system internal: 1
removable: 0
has media: 1 (detected at Mon 23 Mar 2015 06:16:32 PM UTC)
detects change: 0
detection by polling: 0
detection inhibitable: 0
detection inhibited: 0
is read only: 0
is mounted: 0
mount paths:
mounted by uid: 0
presentation hide: 0
presentation nopolicy: 0
presentation name:
presentation icon:
automount hint:
size: 240057409536
block size: 512
job underway: no
usage:
type:
version:
uuid:
label:
partition table:
scheme: mbr
count: 1
drive:
vendor: ATA
model: KINGSTON SV300S37A240G
revision: 520ABBF0
serial: 50026B7242045BE7
WWN: 50026b7242045be7
detachable: 0
can spindown: 1
rotational media: No
write-cache: enabled
ejectable: 0
adapter: Unknown
ports:
similar devices:
media:
compat:
interface: ata
if speed: (unknown)
ATA SMART: Data not collectedEnfin ma partition etait une partition encryptee Luks.
Mon objectif est de recuperer mes donnees.
Merci a toute personne qui pourra m'aider
Edit : Testdisk me trouve deux partitions : Linux, une ext2 bootable et une luks, dois-je faire [write] ?
Dernière modification par malou (Le 24/03/2015, à 18:40)
enfin libre !!! ( www.hcnogent.fr, www.arsenal28.fr )
Hors ligne
#2 Le 24/03/2015, à 00:20
- le cinglé_001
Re : [Resolu]Perte de partition encrytptee LUKS apres erreur de reformatage
Bonsoir.
Je ne pas vraiment vraiment t'aider vu que ta partition était chiffrée mais tu peux essayer avec photorec
#3 Le 24/03/2015, à 18:38
- malou
Re : [Resolu]Perte de partition encrytptee LUKS apres erreur de reformatage
Merci pour ta reponse.
J'ai finalement pu recuperer mes donnees sans passer par photorec.
En utilisant testdisk, j'ai pu reecrire les deux partitions mentionnees precedemment (une ext2 and une LUKS, qui est celle qui m'interesse)
Les headers LUKS ne precisent pas la taille des partitions, je me suis donc retrouve avec une partition LUKS de 2,1 MB. Il s'agit en realite juste du header de la partition LUKS.
J'ai ensuite pu utiliser fdisk pour etendre cette partition (la supprimer, puis la recreer avec le meme secteur de depart, mais avec le dernier secteur du disque pour secteur de fin)
Apres redemarrage (toujours avec un live cd) j'obtiens une partition LUKS de 240Giga, il ne me reste qu'a l'ouvrir avec Nautilus et taper mon mot de passe, et je retrouve tous mes fichiers et dossiers bien ranges. (Avec quelques petits problemes de permissions sur certains fichiers, mais rien d'insurmontable)
En esperant que cela aura aide certains ( et desole pour les accents, j'ai un clavier US)
Voir aussi mon cas sur ce forum http://www.linuxquestions.org/questions … 175537666/
Dernière modification par malou (Le 24/03/2015, à 18:39)
enfin libre !!! ( www.hcnogent.fr, www.arsenal28.fr )
Hors ligne