If a startup fails with the following:
Running: xm create /onapp/config/jhb6ymcxzs0w9s Using config file "/onapp/config/jhb6ymcxzs0w9s".
Error: Device 0 (vif) could not be connected. ip link set vif1.0 name x1jveq6m5upw0q failed
run the following commands to stop this service and to ensure it doesn't start next time it boots:
chkconfig NetworkManager off
This is likely to be due to NetworkManager running on the HV,