[Qemu-devel] Fixing STOP A5 on qemu

[Qemu-devel] Fixing STOP A5 on qemu

[Michael Brown]

Hi,

I was hitting the STOP 0x000000A5 error when attempting to boot Vista or 
similar (Server 2008, WinPE) on current qemu CVS.  Googling suggested that 
this was a problem with the qemu BIOS not supporting ACPI 2.0.

Replacing pc-bios/bios.bin with the bios/BIOS-bochs-latest from current 
bochs CVS fixed the problem, and I am now able to boot these operating 
systems.  This isn't a perfect solution, since the bochs BIOS is built 
without #define BX_QEMU.

It looks as though the BIOS problem has been fixed upstream; could someone 
who knows what they're doing rebuild pc-bios/bios.bin from the latest 
bochs CVS and check it in to qemu CVS?

Thanks,

Michael

(Not a mailing list member, so please do CC me on replies.)

Re: [Qemu-devel] Fixing STOP A5 on qemu

[Stefan Weil]

Hi,

my experience with the latest QEMU and MS-V is identical to Michael's,
so I think replacing pc-bios/bios.bin in CVS by a newer version of
Bochs which supports ACPI 2.0 (I took the latest stable version)
might help other users, too.

Is pc-bios/bios.diff still needed? Maybe it can be removed in CVS.

Stefan


Michael Brown schrieb:
> Hi,
>
> I was hitting the STOP 0x000000A5 error when attempting to boot Vista or
> similar (Server 2008, WinPE) on current qemu CVS. Googling suggested that
> this was a problem with the qemu BIOS not supporting ACPI 2.0.
>
> Replacing pc-bios/bios.bin with the bios/BIOS-bochs-latest from current
> bochs CVS fixed the problem, and I am now able to boot these operating
> systems. This isn't a perfect solution, since the bochs BIOS is built
> without #define BX_QEMU.
>
> It looks as though the BIOS problem has been fixed upstream; could 
> someone
> who knows what they're doing rebuild pc-bios/bios.bin from the latest
> bochs CVS and check it in to qemu CVS?
>
> Thanks,
>
> Michael