From the Oracle ILOM web interface, click Host Management > Power Control, and then from the Action list, select Reset.
From the Oracle local server, press and release the Power button (approximately one second) on the front panel of the server to power off the server, and then press the Power button again to power on the server.
From the Oracle ILOM CLI on the server SP, type: reset /System.
BIOS messages appear on the console.
The "Please select boot device" menu appears, listing the available boot devices.
The network bootloader starts, and a boot prompt appears to allow you to choose the PXE server to install from. After a few seconds, the installation kernel begins to load.
Oracle VM server is installed.
Next Steps
Install Oracle VM Manager, if needed. Refer to:
http://www.oracle.com/technetwork/documentation/vm-096300.html