On Sat, 2007-10-20 at 12:29 -0500, Les Mikesell wrote: > In grub, the hd?'s refer to the bios bootable devices. If, for > example, you have scsi devices and have configured your motherboard > bios to boot from them, grub's hd0 will be your booting scsi drive > even if you also happen to have an IDE present that linux will see > as /dev/hda. A case in point: I had a system with four IDE connectors, the first two were 33MB ports, the second two were 66MB ports, so the HDDs were on the last two. IDE 1 primary: LS120 (fdo) IDE 1 secondary: ZIP I can't recall if GRUB saw this IDE 2 primary: CD burner ignored by GRUB IDE 2 secondary: DVD-ROM ignored by GRUB IDE 3 primary: HDD (hd0) IDE 4 primary: HDD (hd1) GRUB counts usable hard drives as hd devices, it skips other things. But things would get confused by part of my BIOS. The main bit, the sort of BIOS options that most of us are used to, lets you choose a device to boot from out of some drive letters, which you're never quite sure which they'll apply to. There's a separate HPT BIOS for the last two ports, and you don't pick which is the boot drive, you re-arrange the order of how the drives are numbered. 'twas a right sod to get right. -- [tim@bigblack ~]$ uname -ipr 2.6.22.9-91.fc7 i686 i386 Using FC 4, 5, 6 & 7, plus CentOS 5. Today, it's FC7. Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.
