U-Boot diagnostic tests run automatically when the server is started or booted. However:
You must connect a serial terminal to the serial port on the SP to see the output.
You can read whether the tests passed or failed by looking at the SP environment variables. Refer to your Oracle ILOM documentation, and see Sample SP Environmental Variables Showing U-Boot Test Status for a sample display.
Before the tests start, you can select quick or extended mode.
If you do nothing, the tests run in normal mode.
To run the tests, see How to Run the U-Boot Diagnostic Tests.