Hi, I tried to recover an accidentally deleted text file from a btrfs volume using the trusty old 'grep --text -C 500' method and failed, since the filesystem was compressed. So I wrote a shell script that uses btrfs-progs for a proper undelete functionality.
Attached is the script that implements a working btrfs-undelete using the find-
root and restore tools from btrfs-progs. It is fairly complete and solid and
it even has some command line help. It needs bash and common unix utilities
(sed, grep, wc, dirname, sort). I have successfully used it to recover a
couple of files I deleted accidentally and was able to recover 2/3 of them just
fine. The rest was zero-sized, I assume that's because the file blocks have
already been reused.
If you like it, feel free to add it to btrfs-progs. I've chosen GPLv2 or later
as license, as that's what btrfs-progs seems to use.
Please CC me on replies, I am not subscribed (and don't intend to).
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Mit freundlichen Grüßen,
Jörg Walter
btrfs-undelete
Description: application/shellscript
