Sun Microsystems V880 User Manual

The OpenBoot PROM (OBP) on-board firmware performs a routine set of firmware and 
hardware tests.

Note:

Different versions of Solaris have different versions of the OpenBoot commands. 
Not all commands are available with every version.

This section includes the following topics:

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To use the OpenBoot PROM tests:

1. From the root login, turn off CMS.

2. Enter:

/usr/sbin/shutdown -y -i0 -g0
The system shuts down. 

3. At the ok prompt, enter the following commands:

reset-all
The system resets and displays the ok prompt.

4. Enter any of the commands that are shown in 

5. When you finish testing, enter the following commands:

CAUTION:

If you fail to enter these commands, any reboots that you do in the future will stop 
at the boot prompt instead of proceeding through the normal boot-up process.

boot
The system reboots.