mac99 does not find mac os x 10.4 dvd

Hi there,

I've compiled qemu 1.6.0 and ripped my Mac OS X 10.4 dvd to iso format.
Now I'm trying to get qemu to boot the dvd and install the OS with:

qemu-system-ppc64 -M mac99 -m 256 -cdrom ./tiger.iso -boot d -sdl -display sdl -net nic -net user -prom-env 'boot-args=-v' -cpu G4 -hda ./tiger.img

It shows the grey apple logo for a few seconds and then I get the following boot prompt:
-------------------------------------------------
standard timeslicing quantum is 10000 us
vm_page_bootstrap: 60198 free pages
mig_table_max_displ = 70
Copyright (c) 1982, 1986, 1989, 1991, 1993
                The Regents of the University of California. All rights reserved.

using 655 buffer headers and 655 cluster IO buffer headers
ApplePlatformExpert::getGMTTimeOfDay can not provide time of day RTC did not show up
Security auditing service present
BSM auditing present
disabled
rooting via boot-uuid from /chosen: 8ABB5AFF-FC7A-310A-9BFE-8A263F654562
Waiting on <dict ID="0"><key>IOProviderClass</key><string ID="1">IOResources</string><key>IOResource
Match</key><string ID="2">boot-uuid-media</string></dict>
Still waiting for root device
Still waiting for root device
Still waiting for root device
Still waiting for root device
Still waiting for root device
-------------------------------------------------

It keeps repeating the "Still waiting for root device" ?