I've seen this problem mostly on USB bootable Linux thumb drives (occasionally being sda, sdb, and sdc). In which case I solved this by using UUID in Grub and fstab (the drive assignment doesn't matter since the drive is booting from a USB device only). I get the thumb drives and other drives moving around often in my scenario (even if using the same ports hot swapping), but what kind of BIOS re-arranges SATA drives that aren't even being moved around in the OPs case- it's just wrong. Probably worth some communication with the board manufacturer; this would cause problems with any operating system. *Jeremy MountainJohnson* jeremy.mountainjohnson at gmail.com <mailto:jeremy.mountainjohnson at gmail.com> On 12/30/2010 05:27 PM, Jon Schewe wrote: > This doesn't help. If BIOS randomly changes the order of the drives, > then you need to install an MBR on both disks that make it think it's > hd0. Where most people run into this (usually too late) is when the > first drive in a software RAID array fails and then you reboot. Unless > you've installed grub in the MBR on all disks, then you will not boot. > > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list