Re: [Qemu-ppc] [Qemu-devel] [PATCH 0/3] ppc: complete the new HV mode

[Mark Cave-Ayland]

On 07/06/16 08:04, Cédric Le Goater wrote:

>>>> 2. I have an old ibook G4 from which I dd'ed the disk. openbios 
>>>>    complains for some invalid state. is that supported ?
>>
>> Yes, OpenBIOS should boot most things these days (MorphOS is the only
>> execption I know of where the bootloader won't execute correctly as it
>> assumes real mode). The above message means that OpenBIOS couldn't find
>> a bootloader, or it could but was unable to execute it, e.g. due to
>> incompatible architecture - which OS is your image running? 
> 
> I am pretty sure it is a Mac OS X v10.5. I still have the hardware but it
> is running Linux now : 
> 
> # cat /proc/cpuinfo 
> processor     : 0
> cpu           : 7447A, altivec supported
> clock         : 1333.333000MHz
> revision      : 1.5 (pvr 8003 0105)
> bogomips      : 36.86
> 
> total bogomips        : 36.86
> timebase      : 18432000
> platform      : PowerMac
> model         : PowerBook6,7
> machine               : PowerBook6,7
> motherboard   : PowerBook6,7 MacRISC3 Power Macintosh 
> detected as   : 287 (iBook G4)
> pmac flags    : 0000001a
> L2 cache      : 512K unified
> pmac-generation       : NewWorld
> Memory                : 1024 MB
> 
> # lsprop  /proc/device-tree/address@hidden/address@hidden/
> reg              fff00000 00100000
> info             fff00000 00003f00 000493f0 20050705
>                815fda85 fff08000 00078001 000493f0
>                20050705 23765c6c fff80000 00080002
>                000493f0 20050705 b3364dca fff03f00
>                00000083 000493f0 20050705 c2b72d61
>                fff03f80 00000084 e24a68ca 15a82001
>                ffffffff fff04000 00004005 6e767261
>                6d000000 00000000 00000000 00000000
>                [140 bytes total]
> name             "boot-rom"
> security-modes   6e6f6e65 2c206675 6c6c2c20 636f6d6d
>                616e642c 206e6f2d 70617373 776f7264
> image            00080000 (524288)
> model            "Apple PowerBook6,7 4.9.3f0 BootROM built on 07/05/05 at 
> 11:14:11"
> write-characteristic
>                "flash"
> hwi-flags        402a1220 (1076498976)
> BootROM-version  "$0004.93f0"
> BootROM-build-date
>                "07/05/05 at 11:14:11"
> linux,phandle    ff89cb08
> has-config-block
> 
> 
>> Have you tried both mac99 and g3beige machines?
> 
> yes.

(I'm wondering if we should start a new thread here either just on
qemu-ppc or over on the OpenBIOS list)

OpenBIOS will read hfs/hfsplus filesystems fine - I wonder if maybe it
can't locate a suitable partition in the Apple Partition Map?

If you boot to the Forth prompt with -prom-env 'auto-boot?=false' can
you try the following to see if you can list the disk contents:

dir hd:,\

If that doesn't work it means that the partition auto-detection is
failing, so try manually forcing the partition number until you find one
that works e.g.

dir hd:0,\
dir hd:1,\
etc.

up until around partition 10? Once you find one that works it should be
possible to boot that partition directly e.g.

boot hd:1


ATB,

Mark.