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#1 Le 31/08/2015, à 13:56

RoKN

Restauration de partitions effacées par accident

Salut !
Alors voilà, je me sens bien bête...
J'ai voulu partitionner une carte SD avec fdisk. Jusque là no problemo, je sais comment faire.
...
sauf que je me suis planté de disque, j'ai créé une nouvelle table de partition vide sur mon deuxième disque dur au lieu de la-dite carte SD...
neutral neutral neutral yikes sad sad sad hmm (<<<--- les différents états par lesquels je suis passé)

hum... connaitriez-vous un moyen de restaurer les partitions svp ?

EDIT :

Je suis en train d'essayer la méthode d'écrite tout simplement ici, avec testdisk :
https://doc.ubuntu-fr.org/tutoriel/comm … partitions

... a suivre...

Dernière modification par RoKN (Le 31/08/2015, à 14:00)


On dit "chiffrer" : https://chiffrer.info/

Hors ligne

#2 Le 31/08/2015, à 14:24

Caribou22

Re : Restauration de partitions effacées par accident

Bonjour,
Si les données sont importantes, tu peux demander l'aide de la société crée par rmy, membre de la communauté Ubuntu-fr ici : http://diskcard.fr/

Hors ligne

#3 Le 31/08/2015, à 15:30

Bougron

Re : Restauration de partitions effacées par accident

Hors ligne

#4 Le 31/08/2015, à 16:29

Nasman

Re : Restauration de partitions effacées par accident

Si tu n'a fait que créer une nouvelle table de partitions, alors seul le mbr a dû être touché et testdisk devrait pouvoir retrouver les partitions sans trop de difficulté.


PC fixe sous Bionic 64 bits et portable avec Focal 64 bits

Hors ligne

#5 Le 01/09/2015, à 08:54

RoKN

Re : Restauration de partitions effacées par accident

Ben testdisk a bien retrouvé les partitions, mais c'est pas mal le bordel alors pour s'y retrouver...

Mon Aug 31 13:58:48 2015
Command line: TestDisk

TestDisk 6.14, Data Recovery Utility, July 2013
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
OS: Linux, kernel 3.16.0-46-lowlatency (#62~14.04.1-Ubuntu SMP PREEMPT Tue Aug 11 17:28:03 UTC 2015) x
Compiler: GCC 4.8
Compilation date: 2013-10-29T01:29:29
ext2fs lib: 1.42.9, ntfs lib: libntfs-3g, reiserfs lib: none, ewf lib: none
/dev/sda: LBA, HPA, LBA48, DCO support
/dev/sda: size       781422768 sectors
/dev/sda: user_max   781422768 sectors
/dev/sda: native_max 781422768 sectors
/dev/sda: dco        781422768 sectors
/dev/sdb: LBA, HPA, LBA48, DCO support
/dev/sdb: size       1953525168 sectors
/dev/sdb: user_max   1953525168 sectors
/dev/sdb: native_max 1953525168 sectors
/dev/sdb: dco        1953525168 sectors
Warning: can't get size for Disk /dev/mapper/control - 0 B - 1 sectors, sector size=512
Hard disk list
Disk /dev/sda - 400 GB / 372 GiB - CHS 48641 255 63, sector size=512 - ST3400620AS, S/N:9QH0C36J, FW:3.AAK
Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63, sector size=512 - Hitachi HDS721010CLA332, S/N:JP2930HQ261HVP, FW:JP4OA3EA

Partition table type default to Intel
Disk /dev/sdb - 1000 GB / 931 GiB - Hitachi HDS721010CLA332
Partition table type: Intel

Analyse Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63
Current partition structure:
No partition is bootable

search_part()
Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63
FAT16 at 0/130/3
FAT1 : 1-32
FAT2 : 33-64
start_rootdir : 65
Data : 97-114672
sectors : 114688
cluster_size : 16
no_of_cluster : 7161 (2 - 7162)
fat_length 32 calculated 28

FAT16 at 0/130/3
     FAT16 >32M               0 130  3     7 165 30     114688 [boot]
     FAT16, blocksize=8192, 58 MB / 56 MiB

recover_EXT2: s_block_group_nr=0/23, s_mnt_count=9/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8176
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 784640
recover_EXT2: part_size 6277120
     Linux                    7 165 31   398  97 19    6277120
     ext4 blocksize=4096 Large file Sparse superblock, 3213 MB / 3065 MiB

block_group_nr 25

recover_EXT2: "e2fsck -b 819200 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=25/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

recover_EXT2: s_block_group_nr=0/781, s_mnt_count=2/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock, 104 GB / 97 GiB

recover_EXT2: s_block_group_nr=0/3155, s_mnt_count=1/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock, 423 GB / 394 GiB

Results
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB
     FAT16 >32M               0 130  3     7 165 30     114688 [boot]
     FAT16, blocksize=8192, 58 MB / 56 MiB
     Linux                    7 165 31   398  97 19    6277120
     ext4 blocksize=4096 Large file Sparse superblock, 3213 MB / 3065 MiB
   * Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock, 104 GB / 97 GiB
   P Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock, 423 GB / 394 GiB

interface_write()
 1 * Linux                38244 193 30 50992 247  7  204800000 [Debian]
 2 P Linux                50992 247  8 102479   9 58  827123712 [stock]
simulate write!

write_mbr_i386: starting...
write_all_log_i386: starting...
No extended partition

Analyse Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63
Current partition structure:
No partition is bootable

search_part()
Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63
FAT16 at 0/130/3
FAT1 : 1-32
FAT2 : 33-64
start_rootdir : 65
Data : 97-114672
sectors : 114688
cluster_size : 16
no_of_cluster : 7161 (2 - 7162)
fat_length 32 calculated 28

FAT16 at 0/130/3
     FAT16 >32M               0 130  3     7 165 30     114688 [boot]
     FAT16, blocksize=8192, 58 MB / 56 MiB

recover_EXT2: s_block_group_nr=0/23, s_mnt_count=9/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8176
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 784640
recover_EXT2: part_size 6277120
     Linux                    7 165 31   398  97 19    6277120
     ext4 blocksize=4096 Large file Sparse superblock, 3213 MB / 3065 MiB

block_group_nr 25

recover_EXT2: "e2fsck -b 819200 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=25/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

recover_EXT2: s_block_group_nr=0/781, s_mnt_count=2/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock, 104 GB / 97 GiB

recover_EXT2: s_block_group_nr=0/3155, s_mnt_count=1/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock, 423 GB / 394 GiB
Search for partition aborted

Results
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB
     FAT16 >32M               0 130  3     7 165 30     114688 [boot]
     FAT16, blocksize=8192, 58 MB / 56 MiB
     Linux                    7 165 31   398  97 19    6277120
     ext4 blocksize=4096 Large file Sparse superblock, 3213 MB / 3065 MiB
   * Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock, 104 GB / 97 GiB
   P Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock, 423 GB / 394 GiB

interface_write()
 1 * Linux                38244 193 30 50992 247  7  204800000 [Debian]
 2 P Linux                50992 247  8 102479   9 58  827123712 [stock]

search_part()
Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63
FAT16 at 0/130/3
FAT1 : 1-32
FAT2 : 33-64
start_rootdir : 65
Data : 97-114672
sectors : 114688
cluster_size : 16
no_of_cluster : 7161 (2 - 7162)
fat_length 32 calculated 28

FAT16 at 0/130/3
     FAT16 >32M               0 130  3     7 165 30     114688 [boot]
     FAT16, blocksize=8192, 58 MB / 56 MiB

recover_EXT2: s_block_group_nr=0/23, s_mnt_count=9/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8176
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 784640
recover_EXT2: part_size 6277120
     Linux                    7 165 31   398  97 19    6277120
     ext4 blocksize=4096 Large file Sparse superblock, 3213 MB / 3065 MiB

block_group_nr 1

recover_EXT2: "e2fsck -b 32768 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=1/23, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8176
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 784640
recover_EXT2: part_size 6277120
     Linux                    7 165 31   398  97 19    6277120
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 3213 MB / 3065 MiB

block_group_nr 3

recover_EXT2: "e2fsck -b 98304 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=3/23, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8176
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 784640
recover_EXT2: part_size 6277120
     Linux                    7 165 31   398  97 19    6277120
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 3213 MB / 3065 MiB

block_group_nr 5

recover_EXT2: "e2fsck -b 163840 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=5/23, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8176
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 784640
recover_EXT2: part_size 6277120
     Linux                    7 165 31   398  97 19    6277120
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 3213 MB / 3065 MiB

block_group_nr 7

recover_EXT2: "e2fsck -b 229376 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=7/23, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8176
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 784640
recover_EXT2: part_size 6277120
     Linux                    7 165 31   398  97 19    6277120
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 3213 MB / 3065 MiB

block_group_nr 9

recover_EXT2: "e2fsck -b 294912 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=9/23, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8176
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 784640
recover_EXT2: part_size 6277120
     Linux                    7 165 31   398  97 19    6277120
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 3213 MB / 3065 MiB

block_group_nr 25

recover_EXT2: "e2fsck -b 819200 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=25/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

block_group_nr 27

recover_EXT2: "e2fsck -b 884736 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=27/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

block_group_nr 49

recover_EXT2: "e2fsck -b 1605632 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=49/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

block_group_nr 81

recover_EXT2: "e2fsck -b 2654208 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=81/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

block_group_nr 125

recover_EXT2: "e2fsck -b 4096000 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=125/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

block_group_nr 243

recover_EXT2: "e2fsck -b 7962624 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=243/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

block_group_nr 343

recover_EXT2: "e2fsck -b 11239424 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=343/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

block_group_nr 625

recover_EXT2: "e2fsck -b 20480000 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=625/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

block_group_nr 729

recover_EXT2: "e2fsck -b 23887872 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=729/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

block_group_nr 2187

recover_EXT2: "e2fsck -b 71663616 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=2187/2343, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 76800000
recover_EXT2: part_size 614400000
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

recover_EXT2: s_block_group_nr=0/781, s_mnt_count=2/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock, 104 GB / 97 GiB

block_group_nr 1

recover_EXT2: "e2fsck -b 32768 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=1/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 3

recover_EXT2: "e2fsck -b 98304 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=3/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 5

recover_EXT2: "e2fsck -b 163840 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=5/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 7

recover_EXT2: "e2fsck -b 229376 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=7/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 9

recover_EXT2: "e2fsck -b 294912 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=9/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 25

recover_EXT2: "e2fsck -b 819200 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=25/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 27

recover_EXT2: "e2fsck -b 884736 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=27/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 49

recover_EXT2: "e2fsck -b 1605632 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=49/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 81

recover_EXT2: "e2fsck -b 2654208 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=81/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 125

recover_EXT2: "e2fsck -b 4096000 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=125/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 243

recover_EXT2: "e2fsck -b 7962624 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=243/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 343

recover_EXT2: "e2fsck -b 11239424 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=343/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 625

recover_EXT2: "e2fsck -b 20480000 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=625/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

block_group_nr 729

recover_EXT2: "e2fsck -b 23887872 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=729/781, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 25600000
recover_EXT2: part_size 204800000
     Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 104 GB / 97 GiB

recover_EXT2: s_block_group_nr=0/3155, s_mnt_count=1/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock, 423 GB / 394 GiB

block_group_nr 1

recover_EXT2: "e2fsck -b 32768 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=1/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 3

recover_EXT2: "e2fsck -b 98304 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=3/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 5

recover_EXT2: "e2fsck -b 163840 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=5/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 7

recover_EXT2: "e2fsck -b 229376 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=7/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 9

recover_EXT2: "e2fsck -b 294912 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=9/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 25

recover_EXT2: "e2fsck -b 819200 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=25/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 27

recover_EXT2: "e2fsck -b 884736 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=27/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 49

recover_EXT2: "e2fsck -b 1605632 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=49/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 81

recover_EXT2: "e2fsck -b 2654208 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=81/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 125

recover_EXT2: "e2fsck -b 4096000 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=125/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 243

recover_EXT2: "e2fsck -b 7962624 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=243/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 343

recover_EXT2: "e2fsck -b 11239424 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=343/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 625

recover_EXT2: "e2fsck -b 20480000 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=625/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 729

recover_EXT2: "e2fsck -b 23887872 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=729/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

recover_EXT2: s_block_group_nr=0/37, s_mnt_count=2/38, s_blocks_per_group=32768, s_inodes_per_group=8160
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 1239808
recover_EXT2: part_size 9918464
     Linux                82363 162 40 82981   8 35    9918464
     ext4 blocksize=4096 Large file Sparse superblock Recover, 5078 MB / 4843 MiB

recover_EXT2: s_block_group_nr=0/37, s_mnt_count=2/38, s_blocks_per_group=32768, s_inodes_per_group=8160
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 1239808
recover_EXT2: part_size 9918464
     Linux                82365 172 48 82983  18 43    9918464
     ext4 blocksize=4096 Large file Sparse superblock Recover, 5078 MB / 4843 MiB

recover_EXT2: s_block_group_nr=0/37, s_mnt_count=2/38, s_blocks_per_group=32768, s_inodes_per_group=8160
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 1239808
recover_EXT2: part_size 9918464
     Linux                82370   1  1 82987 101 59    9918464
     ext4 blocksize=4096 Large file Sparse superblock Recover, 5078 MB / 4843 MiB

block_group_nr 2187

recover_EXT2: "e2fsck -b 71663616 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=2187/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

block_group_nr 2401

recover_EXT2: "e2fsck -b 78675968 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=2401/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB

recover_EXT2: s_block_group_nr=0/35, s_mnt_count=2/27, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 1179392
recover_EXT2: part_size 9435136
     Linux                91608   0  1 92195  79  4    9435136
     ext4 blocksize=4096 Large file Sparse superblock Recover, 4830 MB / 4607 MiB

block_group_nr 3125

recover_EXT2: "e2fsck -b 102400000 -B 4096 device" may be needed
recover_EXT2: s_block_group_nr=3125/3155, s_mnt_count=0/4294967295, s_blocks_per_group=32768, s_inodes_per_group=8192
recover_EXT2: s_blocksize=4096
recover_EXT2: s_blocks_count 103390464
recover_EXT2: part_size 827123712
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 423 GB / 394 GiB
get_geometry_from_list_part_aux head=255 nbr=2
get_geometry_from_list_part_aux head=8 nbr=1
get_geometry_from_list_part_aux head=255 nbr=2

Results
     Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
     ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB
     FAT16 >32M               0 130  3     7 165 30     114688 [boot]
     FAT16, blocksize=8192, 58 MB / 56 MiB
     Linux                    7 165 31   398  97 19    6277120
     ext4 blocksize=4096 Large file Sparse superblock, 3213 MB / 3065 MiB
   * Linux                38244 193 30 50992 247  7  204800000 [Debian]
     ext4 blocksize=4096 Large file Sparse superblock, 104 GB / 97 GiB
     Linux                50992 247  8 102479   9 58  827123712 [stock]
     ext4 blocksize=4096 Large file Sparse superblock, 423 GB / 394 GiB
     Linux                82363 162 40 82981   8 35    9918464
     ext4 blocksize=4096 Large file Sparse superblock Recover, 5078 MB / 4843 MiB
     Linux                82365 172 48 82983  18 43    9918464
     ext4 blocksize=4096 Large file Sparse superblock Recover, 5078 MB / 4843 MiB
     Linux                82370   1  1 82987 254 63    9928107
     ext4 blocksize=4096 Large file Sparse superblock Recover, 5083 MB / 4847 MiB
     Linux                91608   0  1 92195 254 63    9446220
     ext4 blocksize=4096 Large file Sparse superblock Recover, 4836 MB / 4612 MiB

interface_write()
 1 * Linux                38244 193 30 50992 247  7  204800000 [Debian]
simulate write!

write_mbr_i386: starting...
write_all_log_i386: starting...
No extended partition

TestDisk exited normally.

Dernière modification par RoKN (Le 01/09/2015, à 08:55)


On dit "chiffrer" : https://chiffrer.info/

Hors ligne

#6 Le 01/09/2015, à 09:33

Bougron

Re : Restauration de partitions effacées par accident

Bonjour
Je ne sais pas d'où sort ton testdisk.     
il n'y a que le tout début qui ressemble à celui que je connais.

TestDisk 6.14, Data Recovery Utility, July 2013
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org


TestDisk is free data recovery software designed to help recover lost
partitions and/or make non-booting disks bootable again when these symptoms
are caused by faulty software, certain types of viruses or human error.
It can also be used to repair some filesystem errors.

Information gathered during TestDisk use can be recorded for later
review. If you choose to create the text file, testdisk.log , it
will contain TestDisk options, technical information and various
outputs; including any folder/file names TestDisk was used to find and
list onscreen.

Use arrow keys to select, then press Enter key:
>[ Create ] Create a new log file
 [ Append ] Append information to log file
 [ No Log ] Don't record anything


Mille excuses .... C'est le fichier de log.

Ce qui est intéressant c'est ce qui va suivre cet écran.

TestDisk 6.14, Data Recovery Utility, July 2013
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org

Disk /dev/sdb - 500 GB / 465 GiB - CHS 60801 255 63
     Partition               Start        End    Size in sectors
>P MS Data                     2048    1048575    1046528 [ESPUSB]
 P MS Data                  1048576   34603007   33554432
   Linux Swap              34603008   42991599    8388592
   MS Data                 38797310  976766973  937969664
   MS Data                 42786817   42991616     204800
   MS Data                 42991616   43196415     204800
   MS Data                 43810817   44015616     204800
   MS Data                 44015616   44220415     204800
   MS Data                 44834817   45039616     204800
   MS Data                 45039616   45244415     204800


Structure: Ok.  Use Up/Down Arrow keys to select partition.
Use Left/Right Arrow keys to CHANGE partition characteristics:
                P=Primary  D=Deleted
Keys A: add partition, L: load backup, T: change type, P: list files,
     Enter: to continue
FAT32, blocksize=4096, 535 MB / 511 MiB

car c'est cette partie là qui est très claire à traiter
soit c'est compréhensible ou pas

TestDisk 6.14, Data Recovery Utility, July 2013
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org

Disk /dev/sdb - 500 GB / 465 GiB - CHS 60801 255 63

     Partition                  Start        End    Size in sectors

 1 P MS Data                     2048    1048575    1046528 [ESPUSB]
 2 P MS Data                  1048576   34603007   33554432


 [  Quit  ] >[Deeper Search]  [ Write  ]
                          Try to find more partitions

Fait donc une capture de l'écran que tu as à ce niveau.
Pour la suite on te guidera

Dernière modification par Bougron (Le 01/09/2015, à 09:46)

Hors ligne

#7 Le 02/09/2015, à 11:03

RoKN

Re : Restauration de partitions effacées par accident

Merci :-)
Alors après le quick search, j'ai :

TestDisk 6.14, Data Recovery Utility, July 2013
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org

Disk /dev/sdb - 1000 GB / 931 GiB - CHS 121601 255 63
     Partition               Start        End    Size in sectors
>  Linux                    0  32 33 38244 193 29  614400000 [Ubuntustudio]
   FAT16 >32M               0 130  3     7 165 30     114688 [boot]
   Linux                    7 165 31   398  97 19    6277120
 * Linux                38244 193 30 50992 247  7  204800000 [Debian]
 P Linux                50992 247  8 102479   9 58  827123712 [stock]

Structure: Ok.  Use Up/Down Arrow keys to select partition.
Use Left/Right Arrow keys to CHANGE partition characteristics:
*=Primary bootable  P=Primary  L=Logical  E=Extended  D=Deleted
Keys A: add partition, L: load backup, T: change type, P: list files,
     Enter: to continue
ext4 blocksize=4096 Large file Sparse superblock Backup superblock, 314 GB / 292 GiB

On dit "chiffrer" : https://chiffrer.info/

Hors ligne

#8 Le 02/09/2015, à 11:21

Nasman

Re : Restauration de partitions effacées par accident

Cela correspond à des adresses LBA suivantes:

a) 2048 - 614402047
b) 8192 - 122879
c) 122880 - 6399999
d) 614402048 - 819202047
e) 819202048 - 1646325759

la LBA est calculée par la formule
LBA = cylindre*16065 + tête*63 + secteur - 1

On voit qu'il semble y avoir des traces des deux partitionnements suivants :
partition a) + partition d) + partition e) + espace non alloué de 1646325760 à 1953536192
partition b) + partition c) + espace non alloué de 6400000 à 1953536192


PC fixe sous Bionic 64 bits et portable avec Focal 64 bits

Hors ligne

#9 Le 02/09/2015, à 11:22

Bougron

Re : Restauration de partitions effacées par accident

C'est déjà pas mal comme présentation.
Tu peux faire enter pour continuer.

Tu verras l'autre grille. Je pense qu'elle va te rappeler ce que tu avais.
Dans ce cas tu pourras continuer..
Tu seras positionné par défaut sur deeper search
tu te positionneras à droite sur write.
          de mémoire tu devrais avoir une demande de confirmation.  Que tu devras accepter.
      testdisk te dira de faire un boot pour valider  la modification. C'est à faire dans la foulée.

Dernière modification par Bougron (Le 02/09/2015, à 11:37)

Hors ligne

#10 Le 02/09/2015, à 12:54

RoKN

Re : Restauration de partitions effacées par accident

Dak, je vais m'y atteler dans l'aprèm.

Petite question pour laquelle je pense déjà avoir la réponse : il y avait une partition cryptée (avec truecrypt), j'imagine que celle-ci est irrécupérable ?


On dit "chiffrer" : https://chiffrer.info/

Hors ligne

#11 Le 02/09/2015, à 13:02

Bougron

Re : Restauration de partitions effacées par accident

testdisk récupère des partitions, il ne s'amuse pas à comprendre la signification logique des  bits qui sont dedans.
Le cryptage est une opération logique.

Dernière modification par Bougron (Le 02/09/2015, à 13:02)

Hors ligne

#12 Le 04/09/2015, à 14:51

RoKN

Re : Restauration de partitions effacées par accident

Bon ben alors j'ai appliqué la restauration mais il semblerait que ça n'as pas fonctionné.
Je me retrouve avec effectivement 2 partitions restaurées mais sans contenu.
Bref, tant pis, je repars de zéro :-(

Merci pour votre aide :-)


On dit "chiffrer" : https://chiffrer.info/

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