diff --git a/lib/ceilometer b/lib/ceilometer
index bea68ed..10ceb45 100644
--- a/lib/ceilometer
+++ b/lib/ceilometer
@@ -58,8 +58,11 @@
     sudo chown $USER $CEILOMETER_API_LOG_DIR
 
     # ceilometer confs are copy of /etc/nova/nova.conf which must exist first
-    grep -v format_string $NOVA_CONF_DIR/$NOVA_CONF > $CEILOMETER_AGENT_CONF
-    grep -v format_string $NOVA_CONF_DIR/$NOVA_CONF > $CEILOMETER_COLLECTOR_CONF
+    grep -v format_string $NOVA_CONF > $CEILOMETER_AGENT_CONF
+    iniset $CEILOMETER_AGENT_CONF DEFAULT rpc_backend 'ceilometer.openstack.common.rpc.impl_kombu'
+
+    grep -v format_string $NOVA_CONF > $CEILOMETER_COLLECTOR_CONF
+    iniset $CEILOMETER_COLLECTOR_CONF DEFAULT rpc_backend 'ceilometer.openstack.common.rpc.impl_kombu'
     iniset $CEILOMETER_COLLECTOR_CONF DEFAULT notification_topics 'notifications,glance_notifications'
 }
 
@@ -70,7 +73,7 @@
 
 # start_ceilometer() - Start running processes, including screen
 function start_ceilometer() {
-    screen_it ceilometer-acompute "cd $CEILOMETER_DIR && $CEILOMETER_BIN_DIR/ceilometer-agent-compute --config-file $CEILOMETER_AGENT_CONF"
+    screen_it ceilometer-acompute "cd $CEILOMETER_DIR && sg libvirtd \"$CEILOMETER_BIN_DIR/ceilometer-agent-compute --config-file $CEILOMETER_AGENT_CONF\""
     screen_it ceilometer-acentral "export OS_USERNAME=$OS_USERNAME OS_PASSWORD=$OS_PASSWORD OS_TENANT_NAME=$OS_TENANT_NAME OS_AUTH_URL=$OS_AUTH_URL && cd $CEILOMETER_DIR && $CEILOMETER_BIN_DIR/ceilometer-agent-central --config-file $CEILOMETER_AGENT_CONF"
     screen_it ceilometer-collector "cd $CEILOMETER_DIR && $CEILOMETER_BIN_DIR/ceilometer-collector --config-file $CEILOMETER_COLLECTOR_CONF"
     screen_it ceilometer-api "cd $CEILOMETER_DIR && $CEILOMETER_BIN_DIR/ceilometer-api -d -v --log-dir=$CEILOMETER_API_LOG_DIR"