[Qemu-devel] Re: using qemu to boot Fedora

[Qemu-devel] Re: using qemu to boot Fedora

[David Woodhouse]

On Thu, 2007-07-26 at 19:47 -0400, Jesse Keating wrote:
> So I'd really really like to be able to use qemu to test my just
> composed PPC trees.  Alas I can't seem to find the magic key combos to
> make this happen.  Have any of you had any luck doing this?  There
> seems to be scarce documentation on the net about this as well. 

Qemu's "Open Hackware" firmware doesn't really run FORTH scripts
properly -- it just looks at the CRC32 of the script and then does a
predefined action, if it recognises it. Last time I looked, it didn't
recognise the FORTH script we use on the Fedora boot media to test for
32-bit vs. 64-bit hardware. I think I sent a patch to remedy that.

I'm not sure if it's supposed to be able to run yaboot, but it doesn't
seem to. I've tried running the netboot images (which are just a zImage
containing kernel+initrd) and I think I had problems with that too --
but at least that was a qemu thing not firmware. It may be fixed now.

-- 
dwmw2

[Qemu-devel] Re: using qemu to boot Fedora

[Jesse Keating]

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On Fri, 27 Jul 2007 10:17:01 +0100
David Woodhouse <dwmw2@infradead.org> wrote:

> I'm not sure if it's supposed to be able to run yaboot, but it doesn't
> seem to. I've tried running the netboot images (which are just a
> zImage containing kernel+initrd) and I think I had problems with that
> too -- but at least that was a qemu thing not firmware. It may be
> fixed now.

That would potentially work, I just want to try getting the install env
up and running.  What syntax did you use to boot the netboot image?

-- 
Jesse Keating RHCE      (geek.j2solutions.net)
Fedora Legacy Team      (www.fedoralegacy.org)
GPG Public Key          (geek.j2solutions.net/jkeating.j2solutions.pub)

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[Qemu-devel] Re: using qemu to boot Fedora

[David Woodhouse]

On Fri, 2007-07-27 at 07:24 -0400, Jesse Keating wrote:
> That would potentially work, I just want to try getting the install
> env up and running.  What syntax did you use to boot the netboot
> image? 

I don't remember -- I think I may have built a hacked version of
OpenHackware which just interprets the crc32 of the Fedora ofboot.b to
mean "load images/netboot/ppc32.img".

I'll have another go at getting it to run.

-- 
dwmw2

Re: [Qemu-devel] Re: using qemu to boot Fedora

[Ed Swierk]

On 7/27/07, David Woodhouse <dwmw2@infradead.org> wrote:
> I'm not sure if it's supposed to be able to run yaboot, but it doesn't
> seem to. I've tried running the netboot images (which are just a zImage
> containing kernel+initrd) and I think I had problems with that too --
> but at least that was a qemu thing not firmware. It may be fixed now.

When I tried to boot Fedora 6 a few months ago, qemu was able to run
yaboot and start the install CD, using the mac99 system model.
Unfortunately it required some hacking on OpenHackware to get to that
point, and I never got the emulated IDE controller to work. Something
in the interrupt controller emulation was apparently broken sometime
in 2006 and never fixed.

I would be glad to participate in a group effort to get Fedora booting
on qemu. Reasonable PowerPC server hardware is getting harder and
harder to find (and I don't consider $4000 for a dual-core IBM box
reasonable).

--Ed