I've a .tar backup, when I try to extract using below command.
tar -xvf backup.tar
Nothing is extracting and no errors or warning
Seems like its corrupted. Is there any way to recover the .tar backup?
Asked
Active
Viewed 2,304 times
1
Augustin
- 281
- 1
- 3
- 11
-
3Does `tar -tvf backup.tar` show anything? It should list the contents of the tar file. – Eric Renouf Oct 11 '15 at 00:02
-
Run `tar -xvf backup.tar ; echo $?` and tell us the exit status. Is it 0? – A.P. Oct 11 '15 at 00:04
-
tar -tvf backup.tar, shows nothing, – Augustin Oct 11 '15 at 00:09
-
1it's a common error to run `tar -cvf filename.tar` instead of `tar -xvf ...` (possibly because x is adjacent to c on the qwerty keyboard). if you've accidentally done that, then backup.tar is wiped, beyond recovery unless you have another copy of it somewhere. – cas Oct 11 '15 at 00:09
-
tar -xvf backup.tar; echo$? shows output 0 – Augustin Oct 11 '15 at 00:09
-
What's the actual size of backup.tar? Does the size make sense to you? – A.P. Oct 11 '15 at 00:15
-
yes, 300MB and another backup file 607MB – Augustin Oct 11 '15 at 00:17
-
Try cpio, see my answer below. – A.P. Oct 11 '15 at 00:23
-
1What's the output of `file backup.tar`? – Gilles 'SO- stop being evil' Oct 11 '15 at 21:14
2 Answers
1
If tar fails to work due to a corrupted file, sometimes cpio is your friend:
cpio -ivd -H tar < backup.tar
cpio has been known to skip corrupted parts in a tar file. In this case you'll see a message about "skipping N bytes of junk".
A.P.
- 1,416
- 9
- 11
-
Tried running cpio, cpio -ivd -H tar < backup.tar 1 block this is the output, I'm seing – Augustin Oct 11 '15 at 00:38
-
What does `file backup.tar` say? Is the archive even recognized as a tar one by `file`? Maybe it's compressed? – A.P. Oct 11 '15 at 10:22
-
-
1@Augustin (A) so what does `file backup.tar` say? (B) Maybe a command like `v-restore-user` would help (see https://vestacp.com/docs/)? – A.P. Oct 11 '15 at 18:53
0
Try solution from https://unix.stackexchange.com/a/96431/582295 i.e. -i. I had 209G archive that extracted only to 90G files with xf, but using xfi i was able to extract additional files (with some error at the end, but still better than nothing).
