BIOS problem?

[Timothy Murphy]

John Summerfield wrote:

> Karl Larsen wrote:
>>    I have two hard drives in my computer. I have this F7 on a IDE hard
>> drive and while on this drive it is /dev/sda. No problem now but the
>> second drive is a Serial Cable type and it shows up as /dev/sdf.  No
>> problem with that either.
>> 
>>    It all falls apart when I use the Serial Cable hard drive. It becomes
>> /dev/sda and the IDE becomes /dev/sdb.

>>    I think the BIOS is doing this. Does anyone else have a similar
>>    problem?
> 
> I think it's not the BIOS. Linux generally ignores the BIOS for disks.

I'm not sure this is strictly true.
I think grub decides which is hd(0), hd(1), etc, according to the BIOS.
If you change the order of the disks in the BIOS
I think this alters the way grub sees the disks.