• [^] # Re: Suivi

    Posté par . En réponse au message Récupération données disque NTFS (sous Linux). Évalué à 1.

    testdisk arrive à lire le contenu de la partition que j'arrive à monter (sdh2-copie_travail.img) mais pas celle que je ne parviens pas à monter (la première : sdh1-copie_travail.img), j'obtiens :

    Can't open filesystem. Filesystem seems damaged.

    J'ai tenté une réparation de la MFT :

    MFT and MFT mirror are bad. Failed to repair them.

    J'ai tenté une reconstruction du Boot Sector "Rebuild BS" (pas sûr d'en voir l'intérêt), sans succès :

    Disk ./sdh1-copie_travail.img - 268 GB / 249 GiB - CHS 32636 255 63
     Partition Start End Size in sectors
     P NTFS 0 0 1 32635 106 13 524287966
    Boot sector
    Status: OK
    Backup boot sector
    Status: OK
    Sectors are identical.
    A valid NTFS Boot sector must be present in order to access any data; even if the partition is not bootable.
    

    J'ai donc relancé un ddrescue sur l'intégralité du disque : ddrescue /dev/sdh ./sdh-copie_maitre.img ./sdh-copie_maitre.mapfile qui a donné le résultat suivant :

    GNU ddrescue 1.27
    Press Ctrl-C to interrupt
     ipos: 1000 GB, non-trimmed: 81920 B, current rate: 41222 kB/s
     opos: 1000 GB, non-scraped: 0 B, average rate: 41956 kB/s
    non-tried: 50135 kB, bad-sector: 0 B, error rate: 0 B/s
     rescued: 1000 GB, bad areas: 0, run time: 6h 37m 17s
    pct rescued: 99.99%, read errors: 5, remaining time: 2s
     time since last successful read: 0s
    Copying non-tried blocks... Pass 1 (forwards)
     ipos: 65536 B, non-trimmed: 229376 B, current rate: 12320 kB/s
     opos: 65536 B, non-scraped: 0 B, average rate: 41904 kB/s
    non-tried: 19988 kB, bad-sector: 0 B, error rate: 0 B/s
     rescued: 1000 GB, bad areas: 0, run time: 6h 37m 48s
    pct rescued: 99.99%, read errors: 8, remaining time: 3s
     time since last successful read: 0s
    Copying non-tried blocks... Pass 2 (backwards)
     ipos: 6284 MB, non-trimmed: 294912 B, current rate: 1385 kB/s
     opos: 6284 MB, non-scraped: 0 B, average rate: 41892 kB/s
    non-tried: 17956 kB, bad-sector: 0 B, error rate: 9362 B/s
     rescued: 1000 GB, bad areas: 0, run time: 6h 37m 55s
    pct rescued: 99.99%, read errors: 9, remaining time: 14s
     time since last successful read: 0s
    Copying non-tried blocks... Pass 4 (backwards)
     ipos: 6284 MB, non-trimmed: 2232 kB, current rate: 1365 B/s
     opos: 6284 MB, non-scraped: 0 B, average rate: 41223 kB/s
    non-tried: 0 B, bad-sector: 0 B, error rate: 5916 B/s
     rescued: 1000 GB, bad areas: 0, run time: 6h 44m 23s
    pct rescued: 99.99%, read errors: 49, remaining time: 17s
     time since last successful read: 0s
    Copying non-tried blocks... Pass 5 (forwards) 
     ipos: 6291 MB, non-trimmed: 0 B, current rate: 597 B/s
     opos: 6291 MB, non-scraped: 1182 kB, average rate: 40642 kB/s
    non-tried: 0 B, bad-sector: 37888 B, error rate: 85 B/s
     rescued: 1000 GB, bad areas: 74, run time: 6h 50m 10s
    pct rescued: 99.99%, read errors: 123, remaining time: 3m
     time since last successful read: 0s
    Trimming failed blocks... (forwards) 
     ipos: 6291 MB, non-trimmed: 0 B, current rate: 0 B/s
     opos: 6291 MB, non-scraped: 0 B, average rate: 34872 kB/s
    non-tried: 0 B, bad-sector: 629760 B, error rate: 0 B/s
     rescued: 1000 GB, bad areas: 93, run time: 7h 58m 1s
    pct rescued: 99.99%, read errors: 1279, remaining time: 0s
     time since last successful read: 19s
    Scraping failed blocks... (forwards)
    Finished
    

    Mais, là encore la partition n°1 ne veut pas être lue :

    $ kpartx -l sdh-copie_travail.img
    loop1p1 : 0 524287966 /dev/loop1 34
    loop1p2 : 0 1429237135 /dev/loop1 524288000
    $ kpartx -v -a sdh-copie_travail.img
    add map loop1p1 (252:1): 0 524287966 linear 7:1 34
    add map loop1p2 (252:2): 0 1429237135 linear 7:1 524288000
    $ ntfsfix -b -d -n /dev/mapper/loop1p1
    Mounting volume... ntfs_mst_post_read_fixup_warn: magic: 0x00000000 size: 1024 usa_ofs: 0 usa_count: 0: Invalid argument
    Record 0 has no FILE magic (0x0)
    Failed to load $MFT: Input/output error
    FAILED
    Attempting to correct errors... ntfs_mst_post_read_fixup_warn: magic: 0x00000000 size: 1024 usa_ofs: 0 usa_count: 0: Invalid argument
    Record 0 has no FILE magic (0x0)
    Failed to load $MFT: Input/output error
    FAILED
    Failed to startup volume: Input/output error
    Checking for self-located MFT segment... ntfs_mst_post_read_fixup_warn: magic: 0x00000000 size: 1024 usa_ofs: 0 usa_count: 0: Invalid argument
    OK
    Unrecoverable error
    Volume is corrupt. You should run chkdsk.
    No change made