Grub drive assignments

[Paul Howarth]

On Sun, 2005-04-03 at 06:37 -0400, David Niemi wrote:
> How do the drive assignments work in Grub?
> 
> I have 4 hard drives in a computer:
>  hda - ntfs data disk
>  hdb - ntfs data disk
>  sda - FC3, Grub, used LVM default installation with SELinux
>  sdb - ntfs, WinXP
> 
> During the install initially grub was going to be installed to hda which
> I didn't want so I unplugged the 2 drives and installed with the 2 SATA
> active.  Because of this sda is hd0 in Grub and sdb is hd1.  Once I
> plugged the other 2 drives back in Grub wouldn't boot to WinXP.
> 
> At the moment I change the boot priority to sdb in the bios to boot to
> WinXP.  This is the pertinent sections of my grub.conf:
> *********************************
> title Fedora Core (2.6.9-1.667)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.9-1.667 ro root=/dev/VolGroup00/LogVol00
> rhgb quiet
>         initrd /initrd-2.6.9-1.667.img
> title Other
>         rootnoverify (hd1,0)
>         chainloader +1
> *********************************
> I tried some Google searches, man grub, and fought with info grub to no
> avail. 
> 
> How do I change the drive assignments to get Grub to point to the right
> drive to boot WinXP also?

Grub uses the same drive ordering as your BIOS.

So you probably want to change hd0 references to hd2 and hd1 references
to hd3.

Paul.
-- 
Paul Howarth <paul at city-fan.org>