Raid problems

[DB]

Hi all

I'm trying to install FreeBSD 5.3-Beta5 on a friend's server. He has a promise
fasttracks SX4000 raid controller (raid level 5), but when booting freebsd we
get a list of all the 4 disks. Is that right? (haven't tried installing freebsd
on a raid computer). I've tried install freebsd on one of the disks, but when I
restart the computer, it says it can't find /boot/kernel?

A fast reply or a link to a howto would be much appreciated.

br
db and mk