--- /dev/null	2010-07-22 20:33:01.000000000 +0200
+++ etc/periodic/daily/220.backup-geom	2010-07-22 20:09:13.000000000 +0200
@@ -0,0 +1,49 @@
+#!/bin/sh
+#
+# $FreeBSD:$
+#
+
+# If there is a global system configuration file, suck it in.
+#
+if [ -r /etc/defaults/periodic.conf ]
+then
+    . /etc/defaults/periodic.conf
+    source_periodic_confs
+fi
+
+case "$daily_backup_gpart_enable" in
+    [Yy][Ee][Ss])
+	temp=/tmp/gpart_temp.bak
+	gpart show > $temp
+	if [ ! -s $temp ]
+	then
+	    echo "nothing to backup"
+	    rm $temp || rc=2
+	else
+	    bak=/var/backups
+	    rc=0
+
+	    echo ""
+	    echo "Backing up geom partition information:"
+
+	    if [ ! -f $bak/gpart.bak ]
+	    then
+		echo "no $bak/gpart.bak"
+		mv $temp $bak/gpart.bak || rc=3
+
+	    elif ! cmp -s $bak/gpart.bak $temp
+	    then
+		[ $rc -lt 1 ] && rc=1
+		echo "geom partition layout has been altered:"
+		diff -u $bak/gpart.bak $temp
+		mv $bak/gpart.bak $bak/gpart.bak2
+		mv $temp $bak/gpart.bak || rc=3
+	    else
+		echo "geom partition layout hasn't been altered. skipping backup."
+	    fi
+	fi;;
+
+    *)  rc=0;;
+esac
+
+exit $rc