[plug] Recovering a raid setup after a new install

[nigel]

Hi list,

A friend from another state just sent me an email. He has a
server with 5 drives. 1 40gb for the OS. 2 setup in raid0 and 2
setup in raid1. He had Ubuntu 6.06 on the OS drive wich he said
he wiped and replaced with Ubuntu 6.10.

He usually uses webmin but it dosn't see any raid arrays. 
He says there are 2 files - /dev/md0 and /dev/md1 - under /dev. 
If he tries to mount them he gets the following;

#mount -t ext3 /dev/md1 /storage/
mount: wrong fs type, bad option, bad superblock on /dev/md1,
missing codepage or other error  

I don't know anything about raid. Is there a quick fix for this
or do I need to read the docs and find out how to setup/run raid?
Any pointers will be appreciated.

Regards

Nigel