So I was trying to mount the drive that I removed from the raid partition yesterday (and zeroed the superblock with mdadm), in order to use it for something else. It is formatted as ext4. When I try to mount it, I got an error that said something about the device not being clean and unable to mount. So I ran # e2fsck -y -f -v /dev/sdb5 and it took about 20 minutes to cycle through a ton of block errors, moving things to the lost + found folder, etc. There seems to be some problem, I am sure it is related to this partition being part of a raid before, but no longer. I tried to run this e2fsck again, and it ran again, again taking a long time (like 20 minutes) to fix (again) errors in the partition. So I opened up gparted, formatted the partition as ntfs, then reformatted it to ext4 again. Now when I run e2fsck, it is ok, but I think there is still a problem. Here is why. First, e2fsck: # e2fsck -y -f -v /dev/sdb5 e2fsck 1.42.11 (09-Jul-2014) 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 11 inodes used (0.00%, out of 1921360) 0 non-contiguous files (0.0%) 0 non-contiguous directories (0.0%) # of inodes with ind/dind/tind blocks: 0/0/0 Extent depth histogram: 3 164604 blocks used (2.14%, out of 7680000) 0 bad blocks 1 large file 0 regular files 2 directories 0 character device files 0 block device files 0 fifos 0 links 0 symbolic links (0 fast symbolic links) 0 sockets ------------ 2 files It mounts ok now, and unmounts ok. But when I try this, there is a problem: # mke2fs -c -L root1bak ext4 -v /dev/sdb5 mke2fs 1.42.11 (09-Jul-2014) mke2fs: invalid blocks '/dev/sdb5' on device 'ext4' What does 'invalid blocks' mean? And how do I fix this? I want to make sure this partition is fully functional before I use it. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org