Re: Disk drive recovery help
On 08.04.09 08:50, tony mollica wrote:
> Thorny, I know what you're asking, I just wasn't clear. But yes, the
> partition is there (or here):
>
> fdisk -l output:
>
> Disk /dev/sdg: 184.4 GB, 184416067584 bytes
> 255 heads, 63 sectors/track, 22420 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdg1 * 1 7295 58597056 83 Linux
> /dev/sdg2 7296 22420 121491562+ f W95 Ext'd (LBA)
> /dev/sdg5 7296 14590 58597056 83 Linux
> /dev/sdg6 14591 22420 62894443+ 83 Linux
>
>
> I'm having no problems with the extended partitions, only the first
> primary. All the number look good, just doesn't recognize sdg1
> for mounting, or for fsck.
>
> # fsck /dev/sdg1
> fsck 1.40-WIP (14-Nov-2006)
> e2fsck 1.40-WIP (14-Nov-2006)
> fsck.ext2: No such file or directory while trying to open /dev/sdg1
>
> The superblock could not be read or does not describe a correct ext2
> filesystem. If the device is valid and it really contains an ext2
> filesystem (and not swap or ufs or something else), then the superblock
> is corrupt, and you might try running e2fsck with an alternate superblock:
> e2fsck -b 8193 <device>
>
> All the partitioning software and disk utilities find the partitions. The
> first primary partition is not found or recognized. Tried backup
> superblocks too, but if it doesn't find the device, it won't find the
> data.
>
> All the data is there, I can see it with testdisk, I just can't retrieve
> or do anything with it.
try to issue command "mke2fs -n -v /dev/sdg1" which should give you hints
on where could superblock backups be, for example:
mke2fs 1.41.3 (12-Oct-2008)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
1224000 inodes, 4887776 blocks
244388 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=0
150 block groups
32768 blocks per group, 32768 fragments per group
8160 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000
Then, you can try to give those numbers to e2fsck:
e2fsck -b 32768 /dev/sdg1
Hopefully one of those blocks will be real and working superblock.
--
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