I ran into this problem tonight and I'm trying to be very cautious so if anyone can give me (a semi newbie) some advice I'd appreciate it.
Here's what happened. I used CFDISK to re-designate a extra partition on my hard drive from BeOS type (it wasn't being used at all) to Windows95 Fat 32 so that I could expand some room for my win95 (games ya know). Rebooted and went directly to windows, formatted, ect. When I rebooted to Linux I received a number of errors regarding the /dev/hda5 drive (my /usr directory) that is 2 gigs in size. The errors went something like this: EXT2-fs error (device ide0(3,5): ext2_check_blocks_bitmap: Block #227 of the inode table group 57 is group. (I think this is the correct error) It recommends I run fsck manually. After altering the fstab so that /usr wasn't mounted right away i tried to run fsck /dev/hda5 and received a message that stated "/dev/hda5 has illegal blocks (a number here), clear? <y> I'm cautious about clearing some illegal block for fearing I'll lose data or what not. Can anyone fill me in on what's happening or will I lose data or what not? I have too much there to not be concerned :) Thanks Jon