I was trying to fix my corrupted external hard drive (wouldn't mount anymore). I had all the symptoms described in this howto:
Basically I had a bad superblock (if I understand properly, which might not be the case).
As explained in the link, I ran:
sudo e2fsck -b 32768 /dev/sdc (sdc being my corrupted drive, and 3276 an alternative superblock number).
e2fsck 1.42.13 (17-May-2015) /dev/sdc was not cleanly unmounted, check forced. Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/sdc: ***** FILE SYSTEM WAS MODIFIED ***** /dev/sdc: 11/61046784 files (0.0% non-contiguous), 3849809/244182272 blocks
After this, my disk will mount properly, but all my data are gone!!! Am I missing something, or did I do something wrong? Please help!