hal callouts script and dbus-send errors

[Peggy Russell]

When I issue these commands as root from a bash script on a terminal session 
they are completed successfully:

dbus-send --system --print-reply --dest=org.freedesktop.Hal --type=method_call 
/org/freedesktop/Hal/devices/storage_model_DVDRW_SHW_160P6S 
org.freedesktop.Hal.Device.SetPropertyString string:'block.device.pktcdvd' 
string:'/dev/pktcdvd/pktcdvd0'

dbus-send --system --print-reply --dest=org.freedesktop.Hal --type=method_call 
/org/freedesktop/Hal/devices/storage_model_DVDRW_SHW_160P6S 
org.freedesktop.Hal.Device.SetPropertyString string:'block.device.pktcdvd' 
string:'/dev/pktcdvd/pktcdvd0'

When these same commands are issued from a 'callouts' bash script: 

<deviceinfo version="0.2">
  <device>
    <match key="storage.cdrom.dvdrw" bool="true">
      <match key="block.is_volume" bool="false">
        <append key="info.callouts.add" type="strlist">udf</append>
      </match>
    </match>
  </device>
</deviceinfo>

I receive these errors:

Error org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Hal 
was not provided by any .service files
Error org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Hal 
was not provided by any .service files