uname -a
Linux 2.6.16-11.1-amd64-generic #2 SMP Tue Sep 12 19:11:38 UTC 2006 x86_64 GNU/Linux
--------------------
Intel(R) Xeon(TM) CPU 2.80GHz (EMT/AMD64 instruction set)
--------------------
Ubuntu Edgy updated to latest
--------------------
Hitachi SATA drive
--------------------
During bootup of domU:
...
XENBUS: Device with no driver: device/vbd/2049
....
Begin: Waiting for root file system...
--------------------
It hangs for a while, then punts into busybox/initramfs:
ALERT! /dev/sda1 does not exist. Dropping to a shell!
BusyBox v1.1.3 (Debian 1:1.1.3-2ubuntu3) Built-in shell (ash)
Enter 'help' for a list of built-in commands.
/bin/sh: can't access tty; job control turned off
(initramfs)