# XXX: can multiple unionro be used? (overlay only handles two dirs, but perhaps they can be chained?)
# XXX: and can unionro be optional? i.e. can overlay skip lowerdir?
if echo ${unionro} | grep -q " "
# XXX: can multiple unionro be used? (overlay only handles two dirs, but perhaps they can be chained?)
# XXX: and can unionro be optional? i.e. can overlay skip lowerdir?
if echo ${unionro} | grep -q " "