Table 2-1 Openboot Configuration Variables - Sun Microsystems Sun Fire V440 Diagnostics And Troubleshooting Manual

Controlling POST Diagnostics
You control POST diagnostics (and other aspects of the boot process) by setting
OpenBoot configuration variables in the system configuration card. Changes to
OpenBoot configuration variables generally take effect only after the server is reset.
TABLE 2-1
documented in the OpenBoot Command Reference Manual. You can find instructions
for changing OpenBoot configuration variables in "How to View and Set OpenBoot
Configuration Variables" on page 54.
OpenBoot Configuration Variables
TABLE 2-1
OpenBoot Configuration
Variable
auto-boot?
diag-level
diag-script
diag-switch?
lists the most important and useful of these variables, which are more fully
Description and Keywords
Determines whether the operating system automatically starts up. Default is true.
• true—Operating system automatically starts once OpenBoot firmware completes
initialization.
• 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. Memory is
especially thoroughly checked.
Determines which devices are tested by OpenBoot Diagnostics. Default is none.
• none—No devices are tested.
• normal—On-board (motherboard-based) devices that have self-tests are tested.
• all—All devices that have self-tests are tested.
Toggles the system in and out of diagnostics mode. Also selects the boot device and
boot file. Default is false.
• true—Runs POST diagnostics and OpenBoot Diagnostics tests if post-trigger
and obdiag-trigger conditions, respectively, are satisfied. Causes system to boot
using diag-device and diag-file parameters.
• false—Does not run POST diagnostics and OpenBoot Diagnostics tests, even if
post-trigger and obdiag-trigger conditions are satisfied. Causes system to
boot using boot-device and boot-file parameters.
NOTE: You can put the system in diagnostics mode either by setting this variable to
true or by setting the system control keyswitch to the Diagnostics position. For
details, see "How to Put the System in Diagnostics Mode" on page 57.
Chapter 2 Diagnostics and the Boot Process 13