Timothy Weaver wrote:
Hi, I had 2x750GB drives in a RAID1 configuration in a D-Link NAS (DNS-323) device with embedded Linux as an ext2 volume. The configuration was corrupted and the NAS no longer saw the RAID. I put the drives in another Linux box and was able to use mdadm to scan the drives. It recognized the RAID1 configuration and created the RAID device at /dev/md0. Unfortunately, it says it is corrupt and cannot be mounted. I tried using e2fsck / fsck but it says the superblock is corrupt. Trying to use copies of the superblock were unsuccessful. I am confident the data is still there and want to get to it. Is there a way to take one of the drives and convert it from being in the RAID1 set to just a standard ext2 partition in a non-destructive way? I figured this should be possible with the second drive just to be sure not to destroy both copies of the data.
Try a read-only loopback mount of the partition (either). However, I think you're missing something else, although I don't have a clue what. Unless the O/S started writing bad data or the hardware got sick, you should be able to recover. In any case this allows you to do something non-destructive and use offset= depending on the superblock location.
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