Using snv_107, an HVM virt-install like this:

virt-install -b e1000g0 -c /files/iso/ubuntu-8.10-server-amd64.iso -f /dev/zvol/dsk/files/root-vol -n ubu --os-type=linux -r 4096 -v --vcpus=1 --vnc

goes OK, until the OS install is finished and the guest reboots,
at which point it fails with:

virDomainCreate() failed POST operation failed: (xend.err 'Device 768 (vbd) could not be connected. Backend device not found.')

Subsequent attempts to start the guest yield the same xend.err.
The problem appears to be that the domain config has been left with
cdrom entry with no source:

    <disk device='cdrom'>
      <target dev='hdc'/>
      <readonly/>
    </disk>

After removing this entry (virsh detach-disk ubu hdc), the guest
starts up OK.

Is this a bug or a feature or have I done something incorrectly?

- Bob
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