"Jerry S." <bugzjer at aol.com> top posted his reply: > In the BIOS you should also be able to specify the boot drive as well. > > jer > > Barry Schiffman wrote: > >> > I have a Dell Precision 360, which has both onboard >> > SATA and ultra ATA controllers, and I put one of each >> > kind of drive into the bays to make an experimental >> > machine with the xen kernel. >> > >> > After enabling both of drives, the BIOS recognizes >> > each drive, but it fails to boot, giving me the >> > message "secondary drive 1 not found". The BIOS gives >> > me a choice of going ahead or going to setup. Choosing >> > 'continue anyway' has no effect. >> > >> > I can circumvent this going to F12 to manually choose >> > to boot from the 'Primary Master' (rather than the >> > SATA primary, or the CD, or Hard Disk Drive C:). I >> > still get the warning about secondary drive 1 not >> > found, but now I can choose to go ahead. At this >> > point, grub takes over and everything is fine, boots >> > fine, both drives show up. >> > >> > In fact, I installed CentOS from the DVD, and during >> > installation there was no hint of a problem with using >> > the two drives. >> > >> > In the BIOS setup, I do not get all the drives to >> > choose from -- just Hard Disk Drive C: and the CD. >> > >> > Can anyone suggest a way around this? Depending on the BIOS options, you may be able to set the SATA to "no auto-detect" and "no drive". The kernel should still probe the SATA channel and give you access to the drive once the system is up. This is highly BIOS dependent but I've seen it work as described when the BIOS supports it. It's kind of strange that the BIOS is complaining about "secondary drive 1 not found". Sounds like a BIOS bug. Is there a BIOS update available? Cheers, Dave -- Politics, n. Strife of interests masquerading as a contest of principles. -- Ambrose Bierce