How to Select a U-Boot Diagnostic Mode to Run at Startup

1. Establish a serial connection to the server SP.

   For details, see either the installation guide for your server or the Oracle Integrated Lights Out Manager 3.0 User’s Guide.

2. Power cycle or reset the server.

   The Power/OK LED blinks slowly as U-Boot executes. The U-Boot output is sent directly to the server serial port.

   For details about how to power on or restart your server, see the installation guide for your server.

3. Watch for the following prompt to appear in the U-Boot output and do one of the following:

   Enter Diagnostics Mode {’q’uick/’n’ormal (default)/e’x’tended]...

   • Type “n” to enable Normal U-Boot tests; or let the countdown continue to run Normal mode.

   • Type “q” to enable Quick U-Boot tests.

   • Type “x” to enable Extended U-Boot component tests.

4. Monitor U-Boot output from the serial console connection.

   If there is a diagnostic failure, the SP will not start. See Reporting Diagnostic Failures at System Startup for more details.