I recently came into possession of an IBM xseries 346 server with 4 SCSI drives in some RAID configuration. The server doesn't boot so I thought I would install Ubuntu server (12.04) on it, but when I go through the installation it doesn't find the disks. I'm assumming this is is because the drives are handled by the ServeRAID-7k card.

I've tried putting Ubuntu drivers for the ServeRAID-7k on a USB to access while installing, but it didn't detect the USB drive so I'm kind of lost.

How can I install Ubuntu Server on this x346?