Fix for non-CloudLab nodes

Change-Id: Ib279595f7e3760f01f5c605e1fb9c6a4725efd0a
diff --git a/scripts/cord-in-a-box.sh b/scripts/cord-in-a-box.sh
index e2dc08c..583f235 100755
--- a/scripts/cord-in-a-box.sh
+++ b/scripts/cord-in-a-box.sh
@@ -99,6 +99,9 @@
 
 function cloudlab_setup() {
 
+  # Don't do anything if not a CloudLab node
+  [ ! -d /usr/local/etc/emulab ] && return
+
   # The watchdog will sometimes reset groups, turn it off
   if [ -e /usr/local/etc/emulab/watchdog ]
   then