[lug] grub.conf and BIOS drive specifications

[D. Stimits]

Sean Reifschneider wrote:
> On Sun, Oct 16, 2005 at 04:20:36PM -0600, D. Stimits wrote:
> 
>>each drive is? If I could query it maybe I could figure out a workable 
>>combination. I know there is a config option to assign a given bios hex 
>>value (like 0x80) to be hd0 or hd1 or whatever...but I don't know how to 
> 
> 
> I'd expect that the BIOS hex value would change when you change which drive
> gets booted first.  Isn't that the whole point of changing the boot order
> in the BIOS?

Ahh, but that also means two different MBR's that can each point 
anywhere. The trick is to find a scheme that lets me point at the same 
/boot/. I could possibly use two /boot/'s, but it's unappealing. But I 
suppose I could make two entries for each boot to point at the same 
bootup partition, but only one would be valid and really work, naming 
would always be correct for 1 entry and incorrect for the other...and 
that assumes I'm able to point at the one /boot/. I think if I want to 
do this I'm going to have to have independent /boot/ for each MBR, one 
on scsi, one on ide. And thus also two copies of initrd, two copies of 
kernels, so on. Which might not be a bad idea considering that one of 
them can be used as a rescue system.

D. Stimits, stimits AT comcast DOT net