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jubushi
Tux's lil' helper
Joined: 04 Oct 2005
Posts: 139
Location: Montesilvano
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 Posted: Thu May 11, 2006 12:08 pm Post subject: recupero device usb |
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ho una penna usb che da un momento all'altro mi ha cominciato a dare problemi. se provo a montarla:
| Code: | localhost jubushi # !mount
mount -t auto /dev/sda /mnt/sda
mount: /dev/sda: can't read superblock
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se provo un fsck:
| Code: | localhost jubushi # fsck /dev/sda
fsck 1.37 (21-Mar-2005)
e2fsck 1.37 (21-Mar-2005)
fsck.ext2: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda
Could this be a zero-length partition?
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ed lsusb:
| Code: | localhost jubushi # !ls
lsusb
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 005: ID 0930:6533 Toshiba Corp. 512M USB Stick
Bus 001 Device 001: ID 0000:0000 |
c'è qualche modo per recuperarne il contenuto? |
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Luca89
Advocate
Joined: 27 Apr 2005
Posts: 2107
Location: Agrigento (Italy)
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| Posted: Thu May 11, 2006 12:32 pm Post subject: |
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potresti provare a recuperare un altro superblocco (ext di solito ne fa una copia ogni tot di byte).
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Cazzantonio
Bodhisattva
Joined: 20 Mar 2004
Posts: 4514
Location: Somewere around the world
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| Posted: Thu May 11, 2006 2:02 pm Post subject: |
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Moved from Forum italiano (Italian) to Forum di discussione italiano.
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jubushi
Tux's lil' helper
Joined: 04 Oct 2005
Posts: 139
Location: Montesilvano
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| Posted: Thu May 11, 2006 6:41 pm Post subject: |
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| Luca89 wrote: | | potresti provare a recuperare un altro superblocco (ext di solito ne fa una copia ogni tot di byte). |
cioè??
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Luca89
Advocate
Joined: 27 Apr 2005
Posts: 2107
Location: Agrigento (Italy)
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| Posted: Thu May 11, 2006 8:23 pm Post subject: |
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| Code: | -b superblock
Instead of using the normal superblock, use an alternative superblock specified by superblock. This option is normally used
when the primary superblock has been corrupted. The location of the backup superblock is dependent on the filesystems block‐
size. For filesystems with 1k blocksizes, a backup superblock can be found at block 8193; for filesystems with 2k blocksizes,
at block 16384; and for 4k blocksizes, at block 32768.
Additional backup superblocks can be determined by using the mke2fs program using the -n option to print out where the
superblocks were created. The -b option to mke2fs, which specifies blocksize of the filesystem must be specified in order for
the superblock locations that are printed out to be accurate.
If an alternative superblock is specified and the filesystem is not opened read-only, e2fsck will make sure that the primary
superblock is updated appropriately upon completion of the filesystem check.
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jubushi
Tux's lil' helper
Joined: 04 Oct 2005
Posts: 139
Location: Montesilvano
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| Posted: Thu May 11, 2006 9:11 pm Post subject: |
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nada:
| Code: | localhost jubushi # e2fsck -B ext2 /dev/sda
e2fsck 1.37 (21-Mar-2005)
e2fsck: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda
Could this be a zero-length partition?
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bender86
Guru
Joined: 18 Mar 2005
Posts: 484
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| Posted: Fri May 12, 2006 11:14 am Post subject: |
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| Funziona su altri sistemi? Sei sicuro che il device sia proprio sda (vedi dmesg)? Cosa ti dice |
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Peach
Advocate
Joined: 08 Mar 2003
Posts: 3686
Location: London, UK
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| Posted: Fri May 12, 2006 11:18 am Post subject: |
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spero non sia il tuo caso, ma sapevi l'esistenza del problema descritto in questo thread? https://forums.gentoo.org/viewtopic-t-451427.html
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