Re: [PATCH] cdrom access patch

[Christian Franke]

Bean wrote:
> On Wed, Mar 12, 2008 at 5:10 AM, Christian Franke
> <...> wrote:
>   
> > ...
> >  cd.diff works on this specific PC (Asus A8N, Phonix-Award BIOS), CD
> >  appears as hd31.
> >
> >  BTW: grub_biosdisk_iterate should IMO always expose the boot_drive (see
> >  my latest patch).
> >  With current CVS and cd.diff, the boot_drive would not be visible in
> >  'ls' if e.g 0x80=HDD, 0x82=boot CD (as seen on some old Laptop).
> >     
>
> Thanks for the tip, please test the new patch, it start scanning for
> cdrom if the boot drive is larger than the last harddisk.
>
>   

OK, will test this soon.

> BTW, i have a small question, if there is more than one cdrom, would
> bios export all of them, or just the boot one ?
>
>   

At least during my tests, the 2nd CD drive was never accessible. I don't 
know if this is true in general.

Different BIOS versions apparently handle CD booting different. For 
instance when booting a "floppy emulation" CD, some BIOS expose the real 
floppy drive as fd1, some don't.

Christian