BrandZ and audio devices

Ok, now that my lx-zone is running, I faced my first issue: Unable to reboot the zone!?

# zoneadm -z delta-lx halt
zoneadm: zone 'delta-lx': '/usr/lib/brand/lx/lx_halt delta-lx' failed unexpectedly
zoneadm: zone 'delta-lx': unable to destroy zone
bash-3.00# zoneadm -z delta-lx boot
zoneadm: zone 'delta-lx': zone is already booted
# zoneadm list -iv
  ID NAME             STATUS         PATH                           BRAND
   0 global           running        /                              native
   1 delta-lx         down           /d0/zones/delta-lx             lx
# zoneadm -z delta-lx boot
zoneadm: zone 'delta-lx': zone is already booted

In fact, the solution is in this thread in the OpenSolaris forums. Even if you don’t define an audio device for the lx-zone, you must configure it!