[Fedora-xen] fc5 domU on rhel5 dom0

[Robert Story]

Hi,

Anyone got any tips on getting a fc5 domU to load on a rhel dom0? I've been
struggling with it all morning. I'm stuck at:

--- config ---
memory = "1024"
disk = [ 'phy:/dev/x/aaa,xvda,w' ]
vif = [ 'mac=00:aa:bb:cc:dd:ee' ]
uuid = "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee"
bootloader="/usr/bin/pygrub"
--- end ---

--- domU grub ---
title Fedora Core (2.6.20-1.2307.fc5xen)
       root (hd0,0)
       kernel /vmlinuz-2.6.20-1.2307.fc5xen ro root=/dev/gui/r rhgb quiet
       initrd /initrd-2.6.20-1.2307.fc5xen-blk.img
--- end ---

(Original domU was using fc5xenU kernel/initrd, but google told me I needed
this PAE kernel. It fixed the PAE errors I was getting in xend-debug
initially.)

---  stdout ---
Going to boot Fedora Core (2.6.20-1.2307.fc5xen)
  kernel: /vmlinuz-2.6.20-1.2307.fc5xen
  initrd: /initrd-2.6.20-1.2307.fc5xen-rs.img
Started domain gui
PCI: Fatal: No config space access function found
rtc: IRQ 8 is not free.
PCI: Fatal: No config space access function found
rtc: IRQ 8 is not free.
i8042.c: No controller found.
Red Hat nash version 5.0.32 starting
mount: could not find filesystem '/dev/root'
setuproot: moving /dev failed: No such file or directory
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
switchroot: mount failed: No such file or directory
Kernel panic - not syncing: Attempted to kill init!
--- end ---

--- xend-debug.log ---
DEBUG (blkif:24) exception looking up device number for xvda: [Errno 2] No such file or directory: '/dev/xvda'
--- end ---


Based on some googling, I made a custom initrd image with '--with xenblk
--preload xenblk', but it didn't help any.. Any hints greatly appreciated...