Comment 34 for bug 561390

was having the same problem here with /data refusing to mount at boot

added your ppa and updated.

dpkg-query -W dmsetup
shows:
dmsetup 2:1.02.39-1ubuntu4

dpkg-query -W mountall
shows:
mountall 2.15~ppa1

however when i boot i still get message to skip or go to maintenance shell but if i skip it goes to maintenance shell and gives message that there's a general error mounting filesystems and i'm unable to boot at all.

have edited fstab to prevent loading the problematic drive but need help actually identifying why this is happening please.