Check your DISPLAY settings. You need to have a tigervnc setup on the server to give you the GUI. Generally servers run with a runlevel=3 (NonGUI/CUI with Networking mode). Graphics are in runlevel-5 (uname -r)
Once your vnc is setup on the server, invoke a tool like "Reflections" on your...
Check out my blog post : That's installing a 2 node Oracle 11g RAC with database on VM images with OpenFiler.