[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/tools/test/bin/onos-secure-ssh b/tools/test/bin/onos-secure-ssh
index 45f0401..e62e5dd7 100755
--- a/tools/test/bin/onos-secure-ssh
+++ b/tools/test/bin/onos-secure-ssh
@@ -23,10 +23,11 @@
 
 # ensure known_hosts file exist
 (umask 077; touch "$HOME/.ssh/known_hosts")
-
+set -x
 for node in $nodes; do
     # Setup passwordless login for the local user on the remote node
     ssh $ONOS_USER@$node "
+        set -x
         [ ! -f ~/.ssh/id_rsa.pub ] && ssh-keygen -t rsa -f ~/.ssh/id_rsa -P '' -q
         $ONOS_INSTALL_DIR/bin/onos-user-key \$(id -un) \$(cut -d\\  -f2 ~/.ssh/id_rsa.pub)
         $ONOS_INSTALL_DIR/bin/onos-user-password $user $password