Re: [LinuxBIOS] #84: grub2 can boot linux from IDE disk

[Peter Stuge]

On Thu, Jul 12, 2007 at 09:06:28PM +0200, Uwe Hermann wrote:
> > > Grub2 uses BIOS calls right now for access to disk. Replace
> > > this with a driver that accesses ATA disks directly.
> >
> > _Please_ don't get the one from FILO.
> >
> > Either grab the one from OpenBIOS or port either ADVDRVR or
> > MINDRVR
>
> Why not FILO's driver?

Because it's a somewhat unreliable patchwork with lots of hacks.
(In a bad way.)
> Are those other two better in some respect? How/why?

The OpenBIOS driver is very nice and neat, but not as featureful as
ADVDRVR which even does DMA.
> I've seen lots of inline assembly in ADVDRVR upon a quick
> investigation.

Aha. Maybe MINDRVR is a better fit. It would be interesting to see a
feature comparison between the OpenBIOS driver and MINDRVR.
> http://trac.edgewall.org/wiki/TracGuide

Thanks.

//Peter