Re: Bug in GRUB 0.97 (Ubuntu 6.10)

[Yoshinori K. Okuji]

On Friday 09 March 2007 13:30, Andrew Jeffries wrote:
> adrian15 wrote:
> > Andrew Jeffries escribió:
> >> There's a bug in GRUB 0.97 on Intel 965 Chipsets, the DVD drive
> >> doesn't work if booting from GRUB from the hard drive in either
> >> Windows Vista or Ubuntu Linux.
> >>
> >> If I replace GRUB with LILO it works perfectly.
> >
> > 1) But that's nonsense. The only reason that I see that Grub disables a
> > cdrom is that the bios uses an standard interrupt for disabling the DVD
> > drive... so it is not a grub problem.
>
> But it works fine with LILO.  While I appreciate you may be saying that
> the underlying problem rests with the BIOS manufacturer, LILO manages to
> work around and I would have thought GRUB could do likewise (and given
> that I prefer GRUB, I'd like it to ;-))

Your problem sounds interesting, but I need more information as I don't have 
the same hardware myself.

You said that the DVD drive didn't work, but can you be a bit more specific? 
Is it recognized or not? What does Linux/Windows say about it, for example in 
dmesg?

I guess this is related to some usage of BIOS data area. GRUB might overwrite 
some EBDA, for instance. Have you tried the official version of GRUB? I think 
Ubuntu's is patched very much, so I wouldn't be surprised even if you don't 
have the problem with the official.

Thanks,
Okuji