#StackBounty: #data-recovery #squashfs #forensics Fix/Repair Can't find a SQUASHFS superblock

Bounty: 100

I have an old filesystem backup that I made and compressed into a squashfs. It was stored on an ext4 filesystem, and I suspect it suffered from some bitrot. I don’t have a backup of the file. Is there any way I might be able to rescue this squashfs archive?

$ unsquashfs olddrive.sfs
Can't find a SQUASHFS superblock on olddrive.sfs

Edit: Adding Info

$ file olddrive.sfs
olddrive.sfs: data
$ sudo mount -t squashfs -o ro olddrive.sfs /tmp/sq
mount: /tmp/sq: wrong fs type, bad option, bad superblock on /dev/loop10, missing codepage or helper program, or other error.

Get this bounty!!!

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