@@ -172,9 +172,16 @@ LIBVIRT_TYPE=${LIBVIRT_TYPE:-kvm}

 # cases unless you are working on multi-zone mode.

 SCHEDULER=${SCHEDULER:-nova.scheduler.simple.SimpleScheduler}

-# Use the first IP unless an explicit is set by ``HOST_IP`` environment variable

+# Use the eth0 IP unless an explicit is set by ``HOST_IP`` environment variable

 if [ ! -n "$HOST_IP" ]; then

-    HOST_IP=`LC_ALL=C /sbin/ifconfig  | grep -m 1 'inet addr:'| cut -d: -f2 | awk '{print $1}'`

+    HOST_IP=`LC_ALL=C /sbin/ifconfig eth0 | grep -m 1 'inet addr:'| cut -d: -f2 | awk '{print $1}'`

+    if [ "$HOST_IP" = "" ]; then

+        echo "Could not determine host ip address."

+        echo "If this is not your first run of stack.sh, it is "

+        echo "possible that nova moved your eth0 ip address to the FLAT_NETWORK_BRIDGE."

+        echo "Please specify your HOST_IP in your localrc."

+        exit 1

+    fi

 fi

 # Service startup timeout