Sun Microsystems Blade 1500 - Openboot Diagnostics; Starting Openboot Diagnostics

Chapter 8 OpenBoot PROM 8-5
8.2 OpenBoot Diagnostics
Within the OpenBoot PROM software is a suite of tests which can help you diagnose
problems with the motherboard components and system interfaces to peripherals.
The OpenBoot Diagnostics tests are generalized and function at a low level. They
help you narrow down a problem to a specific component.
8.2.1 Starting OpenBoot Diagnostics
OpenBoot Diagnostics is started either from the console of the system under test or
remotely through an external display device. To run OpenBoot Diagnostics remotely,
see
“Configure an External Display Device” on page 7-4. An advantage of running
OpenBoot Diagnostics through a TIP connection is that long output can be scrolled
and saved.
1. Obtain the ok prompt.
See “Obtaining the ok Prompt for Testing” on page 5-2.
2. Set the auto-boot? property to false. Type:
3. Reset the system. Type:
The system restarts and the ok prompt is displayed again.
4. Set the diag-switch? property to true. Type:
5. Start OpenBoot Diagnostics, type:
ok setenv auto-boot? false
ok reset-all
ok setenv diag-switch? true
ok obdiag