I have updated the btrfs tools.
The error with find roots was fixed.
I think i’m making some progress…
sudo ./btrfs restore -v -o -t 25606820544512 --path-regex
^/\(\|deer\(\|/masurca\(\|/quorum_mer_db.jf\)\)\)$ /dev/sdd1 ~/recover/
parent transid verify failed on 25606820544512 wanted 21614
Langhorst, Brad posted on Wed, 16 Dec 2015 03:13:48 + as excerpted:
> Hi:
>
> I just screwed up⊠spent the last 3 weeks generting a 400G file
> (genome assembly) .
> Went to back it up and swapped the arguments to tar (tar Jcf my_precious
> my_precious.tar.xz)
> what was once 400G is now
Hi:
I just screwed up… spent the last 3 weeks generting a 400G file (genome
assembly) .
Went to back it up and swapped the arguments to tar (tar Jcf my_precious
my_precious.tar.xz)
what was once 400G is now 108 bytes of xz header - argh.
This is on a 6-volume btrfs filesystem.
I
... Didn't read all of your original post originally, because I
haven't been into those internals. Now that I have, I see it seems to
be using 6 devices, so you might have to use 1 hard drive 6*size of
partition (others can say if this will work), or 6 other hard drives
to make the backups.
