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180 Sun Fire V490 Server Administration Guide • August 2004
How to View and Set OpenBoot
Configuration Variables
Switches and diagnostic configuration variables stored by the system firmware
determine how and when power-on self-test (POST) diagnostics and OpenBoot
Diagnostics tests are performed. This section explains how to access and modify
OpenBoot configuration variables. For a list of important OpenBoot configuration
variables, see
TABLE 6-2.
Before You Begin
Halt the server to reach the ok prompt. See:
■ “About the ok Prompt” on page 49
What to Do
● To display the current values of all OpenBoot configuration variables, use the
printenv command.
The following example shows a short excerpt of this command’s output.
● To set or change the value of an OpenBoot configuration variable, use the setenv
command:
ok printenv
Variable Name Value Default Value
diag-level min max
diag-switch? false false
ok setenv diag-level max
diag-level = max