Re: GRUB2 fails when booting from CD

[Andreas Born]

Am 28.09.2010 20:11, schrieb Phillip Susi:
> On 9/28/2010 12:37 PM, Andreas Born wrote:
>    
> > If I understood that part about hd emulation right, that would mean the
> > image wouldn't work on any machine? Or is it possible to switch
> > dynamically with one single image between hd emulation and native
> > el-torito?
> >      
> That's true, if that were the problem the image would not work on any
> machine.  If it works on other machines, then it seems to be a problem
> with the bios.
>
>    
> > Output:
> > grub rescue>  set
> > prefix=(hd111)/boot/grub/i386-pc/
> > root=hd111
> >      
> The odd ( 111 ) hd number is a hint that the bios is broken.  Does ls
> report any available drives?  Maybe it is there, but the bios did not
> pass the correct number.
>    
Yes, as I wrote in my first mail:

grub rescue>  ls
(hd0)
grub rescue>  ls (hd0)
error: unknown filesystem

Is there any way to clearly identify the BIOS as the culprit? Or maybe 
even a chance to implement a workardound at some point if it really is a 
problem with the BIOS?
I guess the fact that I don't have such problems with isolinux can be 
explained with different use of BIOS functionality?
I'm not asking because it were a serious problem for me. I'd just like 
to lower the probability that other users face unlike me a real problem. 
At least if it's possible with considerable effort.