I rebuilt my main desktop PC tonight. I’m running LVM on top of RAID1. The problem is, the second time I booted the machine my main 250GB data partition went belly-up. The boot-time error advised me to run fsck, which I did. Everything looked good, but I still couldn’t mount the volume. sudo mount -a gave me this error:
mount: wrong fs type, bad option, bad superblock on /dev/mapper/vgdata-lvdata, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so
So I ran dmesg | tail and got this:
…
[ 2357.033305] ext3: No journal on filesystem on dm-4
PCFascist over at the Ubuntu Forums has the fix:
tune2fs -j /dev/yourpartitionid
This command will write a new journal to your partition. You will then be able to mount it normally.
