--- /usr/sbin/rear	2015-09-03 15:43:01.000000000 +0200
+++ /usr/sbin/rear	2017-02-23 13:15:59.504794464 +0100
@@ -46,6 +46,7 @@
 VAR_DIR="$REAR_DIR_PREFIX/var/lib/rear"
 LOG_DIR="$REAR_DIR_PREFIX/var/log/rear"
 CMD_OPTS=( "$@" )
+readonly TARGET_FS_ROOT="/mnt/local"
 
 # initialize defaults
 STEPBYSTEP=