Flash Drive FS system skew

Using TestDisk to repair the filesystem
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extremelabs
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Joined: 28 Mar 2017, 03:41

Flash Drive FS system skew

#1 Post by extremelabs » 28 Mar 2017, 03:47

The drive is a 2GB Imation drive with a lot of jpgs in several subfolders. I believe the file table might have been over-written. Worked one day, not the next, exchanged between Mac and Linux Debian machines.

The FS lists incorrect file names, and one HUGE file substituting for hundreds of smaller ones.

The TestDisk software claimed incorrect geometry, so I re-did that, and nothing changed at all. It can find files, but one with non-sense creation dates and all the same file extensions.

I tried photorec on the drive as well, additionally to no avail.

It's a FAT 32 FS, and appears to have been somehow over-written, or skewed, or perhaps damaged somehow that i don't understand. The number of heads is 62, whereas your app claims there should be 255. I adjust to 255, and there is no change in the file listings, sizes, etc.

Any help sincerely appreciated. Not irreplaceable, but it will take time.

Thanks!

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cgrenier
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Re: Flash Drive FS system skew

#2 Post by cgrenier » 28 Mar 2017, 05:56

Can you try PhotoRec 7.1-WIP ? Enable the expert mode in Options, start the recovery, choose [Whole] and a blocksize of 512 bytes, use the default options otherwise.
Does it recover your data ?

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