Vmware ESXi Unsupported mode

On the console:

1. Press ALT-F1.
2. Type "unsupported" and press ENTER.  No characters will show on screen.
3. Enter ROOT password when prompted should get you into # prompt.
4. Be careful, you are in unsupported admin mode.

To Exit:

1. At #, type CLEAR and press ENTER to clear screen.
2. Type EXIT and press ENTER to exit unsupported mode.
3. Press ALT-F2 to switch back to ESXi console page.

Reference:
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1003677