I've got a simular problem too. I boot from IDE but with the latest kernel I miss all my scsi drives. I've got kernel: 2.6.15-21-386 Scsi: AHA-2940U2/U2W card with seagate drives driver (under 2.6.15-20-386) aic7xxx -- Boot failure on SCSI disk https://launchpad.net/bugs/41061