Corrupted Volume: fsck shows thousands of group descriptor errors on ext4 volume.
This data drive disappeared from the system two days ago. I've had problems with drives in the bay when rebooting into Ubuntu from Windows and so I put it in a different bay and it seemed to be working well after reboot. Today when I rebooted into Ubuntu from Windows, I saw Deluge showing errors and unable to recheck files cleanly. Running fsck -a gave
fsck from util-linux-ng 2.17.2
/dev/sdc1: One or more block group descriptor checksums are invalid. FIXED.
/dev/sdc1: Group descriptor 0 checksum is invalid.
/dev/sdc1: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
(i.e., without -a or -p options)
But running fsck manually, I get
One or more block group descriptor checksums are invalid. Fix<y>? Y
THen lots of:
Group descriptor 888 checksum is invalid. FIXED.
Group descriptor 889 checksum is invalid. FIXED.
Group descriptor 890 checksum is invalid. FIXED.
/dev/sdc1 contains a file system with errors, 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
Free blocks count wrong for group #335 (32768, counted=5759).
Then thousands of
Free blocks count wrong for group #891 (32768, counted=9409).
Free blocks count wrong for group #892 (32768, counted=7494).
So I need help here. This is a 1.5 TB volume. If there are tens of thousands of these wrong block counts my finger will wear out and if there are hundreds of thousands, I could be dead of old age.
Use the '-y' option to automatically acknowledge the prompts.
Please post your thread in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread is being closed because it is a duplicate.
EDIT: reopen as per request.
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