-#if [ "$TMPFILE" -a -f $TMPFILE ]; then
-# echo "$TMPFILE exists; I'm unwilling to overwrite it." 1>&2
-# exit 1
-#fi
+[ ! -d $MNTOBD ] && mkdir $MNTOBD
+[ ! -d $MNTSNAP ] && mkdir $MNTSNAP
+[ ! -d $MNTSNAP2 ] && mkdir $MNTSNAP2
+
+
+# temp file
+if [ "$TMPFILE" -a -f $TMPFILE ]; then
+ echo "$TMPFILE exists; I'm unwilling to overwrite it." 1>&2
+ exit 1
+fi
+[ "$TMPFILE" ] && dd if=/dev/zero of=$TMPFILE bs=1k count=10k