On 1/15/22 15:21, Mark Cave-Ayland wrote:
On 14/01/2022 14:12, Cédric Le Goater wrote:
Yes, more info here :
https://patchwork.kernel.org/project/qemu-devel/patch/1458121432-2855-1-git-send-email-lviv...@redhat.com/
mac99+970 only boots with a 64bit kernel. 32bit are not supported because
of the use of the rfi instruction which was removed in v2.01. 32bit user
space is supported though.
However I was not able to build a disk with a compatible boot partition
for OpenBIOS. The above support only applies for kernel loaded in memory.
May be Mark knows how to do this ?
The Mac machines generally require a HFS filesystem for booting with OpenBIOS:
it's a bit convoluted, but some instructions for grub can be found at
https://wiki.gentoo.org/wiki/GRUB_on_Open_Firmware_(PowerPC).
Initially, I installed a debian11 ppc64 on a QEMU mac99/970 machine.
Something went wrong with the bootloader at installation and I was
stuck with memory boot. I didn't manage to restore a decent boot
setup even after that.
I stole the HFS partition from a real G5 and after some manual tweaks
on the disk, I got it working.
There are a few harmless errors :
>> =============================================================
>> OpenBIOS 1.1 [Jan 15 2022 14:23]
>> Configuration device id QEMU version 1 machine id 3
>> CPUs: 1
>> Memory: 1024M
>> UUID: 00000000-0000-0000-0000-000000000000
>> CPU type PowerPC,970
milliseconds isn't unique.
Welcome to OpenBIOS v1.1 built on Jan 15 2022 14:23
Trying hd:,\\:tbxi...
>> switching to new context:
call-method color!: exception -21
>> call-method color! failed with error ffffffdf
call-method color!: exception -21
...
call-method block-size: exception -21
>> call-method block-size failed with error ffffffdf
call-method block-size: exception -21
>> call-method block-size failed with error ffffffdf
I guess the initial problem is in the debian installer. I will report.
I can certainly help out if you get stuck. If this is a more obscure combination
then is it worth adding a tiny image for use with avocado?
No. It is really a standard setup :
root@vm02:~# mac-fdisk -l /dev/sda
/dev/sda
# type name length base (
size ) system
/dev/sda1 Apple_partition_map Apple 63 @ 1 (
31.5k) Partition map
/dev/sda2 Apple_HFS bootstrap 500001 @ 64
(244.1M) HFS
/dev/sda3 Apple_UNIX_SVR2 untitled 39634766 @ 500065 (
18.9G) Linux native
/dev/sda4 Apple_UNIX_SVR2 swap 1808208 @ 40134831
(882.9M) Linux swap
/dev/sda5 Apple_Free Extra 1 @ 41943039 (
0.5k) Free space
Block size=512, Number of Blocks=41943040
DeviceType=0x0, DeviceId=0x0
root@vm02:~# cat /proc/cpuinfo
processor : 0
cpu : PPC970, altivec supported
clock : 900.000000MHz
revision : 2.2 (pvr 0039 0202)
timebase : 100000000
platform : PowerMac
model : PowerMac3,1
machine : PowerMac3,1
motherboard : PowerMac3,1 MacRISC MacRISC2 Power Macintosh
detected as : 0 ((null))
pmac flags : 00000000
pmac-generation : NewWorld
root@vm02:~# uname -a
Linux vm02 5.15.0-2-powerpc64 #1 SMP Debian 5.15.5-2 (2021-12-18) ppc64
GNU/Linux
Thanks,
C.
