To Start Post Diagnostics; Controlling Post Diagnostics - Sun Microsystems Sun Fire V250 Administration Manual

If diag-level is set to menus, a menu of all the tests executed at power up is
displayed.
POST diagnostic and error message reports are displayed on a console.

To Start POST Diagnostics

1. Go to the ok prompt.
2. Type:
ok setenv diag-switch? true
3. Type:
ok setenv diag-level value
Where value is either min or max depending on the level of diagnostics you require.
4. Type:
ok reset-all
The system runs POST diagnostics and displays status and error messages in the
console window. If POST detects an error, it displays an error message describing the
failure.
5. When you have finished running POST, restore the value of diag-switch? to
false. Type:
ok setenv diag-switch? false
Resetting diag-switch? to false minimizes boot time.

Controlling POST Diagnostics

You control POST diagnostics (and other aspects of the boot process) by setting
OpenBoot configuration variables. Changes to OpenBoot configuration variables
generally take effect only after the machine is restarted. lists the most
TABLE 6-3
Chapter 6 Diagnostics 49