[OpenBIOS] QEMU OpenBIOS booting?

Laurent Vivier Laurent at lvivier.info
Sun Apr 19 10:24:10 CEST 2009

Le dimanche 19 avril 2009 à 00:50 -0700, Steven Noonan a écrit :
> On Tue, Apr 14, 2009 at 10:46 PM, Steven Noonan <steven at uplinklabs.net> wrote:
> > On Sun, Apr 12, 2009 at 1:39 AM, Laurent Vivier <Laurent at lvivier.info> wrote:
> >> OpenBIOS is not able to boot MacOS X.
> >
> > Well, that's a silly limitation. Is there a reason this isn't
> > implemented? I see that the Mac-on-Linux OpenBIOS version has such
> > support, so it seems strange that the QEMU version does not.
> I don't know if anyone here is actually interested (this list seems
> -very- quiet), but...


> I've been hacking at OpenBIOS for a bit, and I got it to properly read
> Mac OS X discs (it kept failing because it would hit an Apple
> Partition Map header instead of an HFS+ filesystem header). I'm
> working on adding an XCOFF loader, too, so it should be able to boot
> Mac OS X soon.

You can copy it from OpenHackWare.
I made some tests and it seems to have some memory conflicts between
MacOS kernel and OpenBIOS.

Good Luck.

> Any chances I could get these changes merged to the main OpenBIOS tree
> once they're done?


> My current working repository is at http://github.com/tycho/openbios.
> I'm working on the macosx-boot branch. The relevant commit is here
> (patch also attached):
> http://github.com/tycho/openbios/commit/4722c8a01d186a08183de49759dc8b7b74cf41c9
> Thoughts?

I don't understand why this patch is needed. Could you explain ?


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