I have a disk image taken around ten years ago. It has a .dsk file
extension, which might be a clue to what I used to take the image but
more likely is something I picked because it was a disk!
I'm trying to recover data from it but none of my normal tools are
recognising it. Eg:
$ file myfile.dsk
myfile.dks: data
$ fdisk -l myfile.dsk
Disk myfile.dsk: 39.7 GB, 39711651840 bytes
255 heads, 63 sectors/track, 4828 cylinders, total 77561820 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: 0x00000000
Disk myfile.dsk doesn't contain a valid partition table
Testdisk isn't giving me any clear results (it can find an ext3
partition but doesn't seem then able to extract anything from it).
I'm pretty sure this was a straight image from a physical disk (it
could have been a virtual disk but it's 39GB so I doubt that). It's
quite possible that the default geometry settings in tesdisk etc are
wrong but short of random guesses I don't know what to try.
I am confident my data is there; if I view the raw data I am able to
find a lot of it (mostly scripts which are therefore in plain text).
Not that this is a very easy way to extract data!
Suggestions as to what I should do to recover data?
If it helps, the first 4096 bytes are all zero (so there's no obvious
file header).
Mark
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