--- /etc/init.d/xdm.orig	2011-12-21 11:50:37.000000000 +1100
+++ /etc/init.d/xdm	2012-04-12 16:28:41.058098417 +1000
@@ -101,6 +101,15 @@
 			PIDFILE=/var/run/lightdm.pid
 			START_STOP_ARGS="--background"
 			;;
+		nodm)
+			EXE=/usr/sbin/nodm
+			PIDFILE=/var/run/nodm.pid
+			START_STOP_ARGS="--background --make-pidfile"
+
+			source /etc/nodm.conf
+			export NODM_USER NODM_FIRST_VT NODM_X_OPTIONS \
+				NODM_MIN_SESSION_TIME NODM_XSESSION
+			;;
 		*)
 			# first find out if there is such executable
 			EXE="$(which ${MY_XDM} 2>/dev/null)"