To recover the root account password you need a local serial management port (SER MGT) connection to Oracle ILOM. In addition, if the Physical Presence State is enabled (the default) in Oracle ILOM, you must prove that you are physically present at the server.
To recover the root account password, perform these steps:
For example: SUNSP-000000000 login: default
Press and release the physical presence button
Press return when this is completed...
To prove physical presence at the server, press the Locator button on the front of the server.
For the exact location of the Locator button, see Front Panel With Four 3.5-inch Drives Configuration or Front Panel With Eight 2.5-inch Drives Configuration.
You will be prompted for a password.
For more information, refer to the section on "Configuring Local User Accounts" in the Oracle Integrated Lights Out Manager (ILOM) 3.1 Configuration and Maintenance Guide at http://www.oracle.com/pls/topic/lookup?ctx=ilom31.