--- /dev/null
+#!/bin/sh
+
+[ $# -ne 1 ] && exit 1
+
+BIRD=$1
+
+EXC=`mount -t overlayfs | grep overlayfs -c`
+
+[ $EXC > 0 ] && rm -r /etc/init.d/${BIRD} || mv /etc/init.d/${BIRD} /etc/${BIRD}/init.d/${BIRD}.orig
+
+ln -s /etc/${BIRD}/init.d/${BIRD} /etc/init.d/${BIRD}
+
+exit 0