Ok so I have a Debian Squeeze server that I use to share files and printers with over the network. Today, I boot up the server and I get filesystem error where fsck failed. It says that it could not find /dev/mapper/<insert partition here> (I use LVM) on all my partitions. So in order to use the backup superblock, I need to type in "e2fsck -b 8193", however, how would this help anything if it cannot find the partition in the first place?

What should I do to get this repaired quickly? I really need my printer back up and running.

Ok so it was able to find my root partition and swap, but my var, tmp, home, and usr have all disappeared.

Ok it looks like some of the partitions had their name changed. They were once sda3 but are now dm-0?