Urgent please help!

[Thomas Ward]

Hello, ok here is what is up with my drive. It will boot, but it has alot of
input output errors. Also when logging into root all it says is bash and the
bash version. No matter what you type.
When I tried running shutdown with the -h now option it says program not
found.
Also it gives me input output errors when trying to mount /mnt/floppy and
/mnt/cdrom.
Everything was working fine until my system locked up, and I was forced to
switch it off manually. After that everything has been acting weird, and it
refuses to shutt itself down properly.