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Re: can Fedora's QEMU run ppc guest in F12 x86_64 host?



Andre Robatino wrote:
On 12/05/2009 08:27 PM, Bill Davidsen wrote:
Andre Robatino wrote:
I've tried to create a F12 ppc guest in a F12 x86_64 host, using F12's
Virtual Machine Manager and with qemu-system-ppc installed.  It's
reading a verified copy of Fedora-12-ppc-DVD.iso from the HDD.  It fails
with

CDROM boot failure code : 0004
Boot failed: could not read the boot disk

FATAL: No bootable device.

(Screenshot attached.)  At least this is an improvement over F11 which
would generate a kernel failure instead.  Is this supposed to work?  The
page

http://fedoraproject.org/wiki/Features/KVM_and_QEMU_merge

claims that it is.

Were I you, I would take all the virtual "dumb it down" stuff out of the
picture, create a 6GB or so qcow2 device with qemu-img, then run the ppc
from the command line:
  qemu-system-ppc64 -, 1200 -hda mydisk.img -cdrom install.iso -boot d
-net nic
look at the man page, those may not be exactly what you need for your
system.

I have found that this works when more convenient tools don't, due
either to limitations in the tool or in the doc, or in my understanding.

If this works it will point to the need to understand the convient tool
better.

Good advice, I didn't know how to use QEMU on the command line.  I tried
making it work in the simplest way possible.  The following works with
an x86_64 image:

qemu-system-x86_64 -hda Fedora_12_x86_64.img -cdrom Fedora-12-x86_64-DVD.iso

but the corresponding command for ppc

qemu-system-ppc -hda Fedora_12_ppc.img -cdrom Fedora-12-ppc-DVD.iso

fails with the error

cd:0,\ppc\chrp\yaboot.conf: Unknown or corrupt filesystem
Can't open config file
Welcome to yaboot version 1.3.14 (Red Hat 1.3.14-23.fc12)
Enter "help" to get some basic usage information
boot:

I tried creating the .img file in both qcow2 and the default raw format,
and both the qemu-system-ppc and qemu-system-ppc64 commands.

You need to tell it to boot off the cdrom. That's what the "-boot d" means. If that doesn't work I'll have to pull down a CD and try it. Also, is that ppc iso 32 or 64 bit? There's a 64 bit qemu as well.

--
Bill Davidsen <davidsen tmr com>
  "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot


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