Controlling Post Diagnostics - Sun Microsystems Fire V240 Administration Manual

5. When you have finished running POST, restore the value of diag-switch? to
false by typing:
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.
important and useful of these variables. You can find instructions for changing
OpenBoot configuration variables in "To View And Set OpenBoot Configuration
Variables" on page 77.
TABLE 6-3
OpenBoot Configuration
Variable
auto-boot
diag-level
diag-script
diag-switch?
58 Sun Fire V210 and V240 Servers Administration Guide • April 2003
OpenBoot Configuration Variables
Description and Keywords
Determines whether the operating system automatically starts up. Default is true.
• true—Operating system automatically starts once firmware tests finish.
• false—System remains at ok prompt until you type boot.
Determines the level or type of diagnostics executed. Default is min.
• off—No testing.
• min—Only basic tests are run.
• max—More extensive tests may be run, depending on the device.
Determines which devices are tested by OpenBoot Diagnostics. Default is none.
• none—No devices are tested.
• normal—On-board (centerplane-based) devices that have self-tests are tested.
• all—All devices that have self-tests are tested.
Toggles the system in and out of diagnostic mode. Default is false.
• true—Diagnostic mode: POST diagnostics and OpenBoot Diagnostics tests may run.
• false—Default mode: Do not run POST or OpenBoot Diagnostics tests.
lists the most
TABLE 6-3