+if [ -e /run/live/medium ] l then
+ MOUNT_POINT_='/run/live/medium' # since Dec. 2018
+elif [ -e /lib/live/mount/medium ] ; then
+ MOUNT_POINT_="/lib/live/mount/medium"
+fi
+
+# assume we have a grml2usb system
+if [ -d "$MOUNT_POINT_"/boot/release ] ; then
+ DATA_PATH_="$MOUNT_POINT_/boot/release"
+else # no grml2usb but running from CD
+ DATA_PATH_="$MOUNT_POINT_/boot"
+fi
+
+# new grml2usb layout
+if [ -d "$MOUNT_POINT_"/boot/syslinux ] ; then
+ ISOLIN_PATH_="$MOUNT_POINT_/boot/syslinux"
+ test -d $ISOLIN_PATH_ || ISOLIN_PATH_="$MOUNT_POINT_"
+else # old layout
+ ISOLIN_PATH_="$DATA_PATH_/isolinux"
+ test -d $ISOLIN_PATH_ || ISOLIN_PATH_="$MOUNT_POINT_"
+fi