[OpenBIOS] openfirmware boot partition layout

[Mark Cave-Ayland]

On 16/02/11 15:06, Dinar Valeev wrote:

> Just little finding.
>
> So If I try to boot from iso without disk image attached then it boot's fine:
> 0>  dir cdrom:\suseboot\
>        2048 2011-02-08 23:16:17 .\
>        2048 2011-02-08 23:16:17 ..\
>         154 2011-02-08 23:16:17 yaboot.cnf
>      405028 2011-02-08 23:16:17 yaboot.ibm
>   ok
> 0>  boot cdrom:\suseboot\yaboot.ibm
> yaboot starting: loaded at 00040000 000657a8 (0/0/fff02464; sp: 07de7ff0)
> Config file 'yaboot.cnf' read, 154 bytes
>
>
> Welcome to yaboot version r22.8-r1190.SuSE
>
> But if I boot with disk image attached Then it just hangs.
>>> =============================================================
>>> OpenBIOS 1.0 [Feb 9 2011 21:07]
>>> Configuration device id QEMU version 1 machine id 3
>>> CPUs: 1
>>> Memory: 128M
>>> UUID: 00000000-0000-0000-0000-000000000000
>>> CPU type PowerPC,POWER4
> Welcome to OpenBIOS v1.0 built on Feb 9 2011 21:07
>
> 0>  boot cdrom:\suseboot\yaboot.ibm

Oh I see - so even booting the CDROM with a disk image attached fails. 
If you do this, does specifying "-boot d" on the kvm command line help? 
The default list of devices to use during boot is built up based upon 
the information obtained from kvm at runtime. I'm not sure it makes a 
difference here, but it may be worth trying.

>> Andreas' last email to the list was here:
>> http://lists.openbios.org/pipermail/openbios/2011-February/006275.html. The
>> short version is, the basic PPC64 BIOS works but if you need RTAS then
>> currently developer help is needed. Would this be something you'd be willing
>> to help with?
>
> Unfortunately I have no programming skills. Just basics.
>
> I'm glad to help with testing.

Excellent :)


ATB,

Mark.

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Mark Cave-Ayland - Senior Technical Architect
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