saving uncommitted changes in /etc prior to emerge run

init.d/loopback

@@ -0,0 +1,35 @@
+#!/sbin/runscript
+# Copyright (c) 2013 William Hubbs <w.d.hubbs@gmail.com>
+# Released under the 2-clause BSD license.
+
+description="Configures the loopback interface."
+
+depend()
+{
+	keyword -jail -prefix -vserver
+}
+
+start()
+{
+	if [ "$RC_UNAME" = Linux ]; then
+		ebegin "Bringing up network interface lo"
+		if type ip > /dev/null 2>&1; then
+			ip addr add 127.0.0.1/8 dev lo brd + scope host
+			ip route add 127.0.0.0/8 dev lo scope host
+			ip link set lo up
+		else
+			ifconfig lo 127.0.0.1 netmask 255.0.0.0
+			route add -net 127.0.0.0 netmask 255.0.0.0 gw 127.0.0.1
+		fi
+	else
+		ebegin "Bringing up network interface lo0"
+		ifconfig lo0 127.0.0.1 netmask 255.0.0.0
+		route -q add -inet 127.0.0.0 -netmask 255.0.0.0 127.0.0.1
+	fi
+	eend $?
+}
+
+stop()
+{
+	return 0
+}