=== modified file 'sbin/snap.lvm2'
--- sbin/snap.lvm2	2015-12-15 11:52:13 +0000
+++ sbin/snap.lvm2	2015-12-15 11:44:03 +0000
@@ -28,6 +28,7 @@
 	# make sure it's empty and unused
 	rmdir "$SNAPSHOT" || exit $?
 fi
+echo $$ >"$LOCKFILE" || exit $?
 mkdir -p "$SNAPSHOT" || exit $?
 lvcreate -n "${SRC##*/}.snaprep" -L "${SNAPSHOT_SIZE:-10G}" -s "$SRC" || exit $?
 die_lvremove() {