[OpenBIOS] QEMU OpenBIOS booting?

[Laurent Vivier]

Le samedi 11 avril 2009 à 18:06 -0700, Steven Noonan a écrit :
> Hi folks,

Hi
> I've been trying to use OpenBIOS with QEMU, and I've had trouble
> getting it to boot any PowerPC-based OS discs (Linux, Mac OS X, etc).
> OpenBIOS just doesn't seem to find anything bootable. If I try booting
> QEMU with -nographic, I get this output (I get the same with a
> self-built openbios-qemu.elf from the OpenBIOS SVN as well):

OpenBIOS is not able to boot MacOS X.
To boot a linux CDROM type "boot cd:" at prompt.

> ---- snip ----
> 
> >> =============================================================
> >> OpenBIOS 1.0 [Apr 12 2009 00:55]
> >> Configuration device id QEMU version 1 machine id 1
> >> CPUs: 1
> >> Memory: 128M
> >> UUID: 00000000-0000-0000-0000-000000000000
> >> CPU type PowerPC,970FX
> Welcome to OpenBIOS v1.0 built on Apr 12 2009 00:55
> 
> >> ELF - yaboot_startup: Entering boot, no path
> >> ELF - try_bootinfo: Trying hd:0,ppc\bootinfo.txt
> >> ELF - try_bootinfo: Can't open hd:0,ppc\bootinfo.txt
> >> ELF - try_path: Trying hd:2,\ofclient
> >> ELF - try_path: Can't open hd:2,\ofclient
> >> ELF - try_path: Trying hd:2,\yaboot conf=hd:2,\yaboot.conf
> >> ELF - try_path: Can't open hd:2,\yaboot
> >> *** Boot failure! No secondary bootloader specified ***
> 
> ---- snip ----
> 
> Laurent Vivier suggested in this conversation in February
> (http://lists.openbios.org/pipermail/openbios/2009-February/003476.html)
> that there could be a bug in partition map decoding. Has such a bug
> been confirmed? I was trying to find the bug myself (I am an

I've tried to correct this but it introduces new problems.

> experienced C/C++ programmer), but the bug seems to be subtle, and my
> lack of familiarity with the code base doesn't help much.
> 
> I've been trying to figure this out for 7 hours straight now... Any
> advice or other help would be much appreciated!

Regards,
Laurent