[ -n "$MIRROR_DIRECTORY" ] && umount "${CHROOT_OUTPUT}/${MIRROR_DIRECTORY}"
# notice: 'fai dirinstall' does not seem to exit appropriate, so:
[ -n "$MIRROR_DIRECTORY" ] && umount "${CHROOT_OUTPUT}/${MIRROR_DIRECTORY}"
# notice: 'fai dirinstall' does not seem to exit appropriate, so: