Table 2-2 Keywords For The Test-Args Openboot Configuration Variable - Sun Microsystems Sun Fire V440 Diagnostics And Troubleshooting Manual

In addition, the OpenBoot Diagnostics tests use a special variable called test-args
that enables you to customize how the tests operate. By default, test-args is set to
contain an empty string. However, you can set test-args to one or more of the
reserved keywords, each of which has a different effect on OpenBoot Diagnostics
tests. lists the available keywords.
TABLE 2-2
Keywords for the test-args OpenBoot Configuration Variable
TABLE 2-2
Keyword
bist
debug
iopath
loopback
media
restore
silent
subtests
verbose
callers=N
errors=N
If you want to make multiple customizations to the OpenBoot Diagnostics testing,
you can set test-args to a comma-separated list of keywords, as in this example:
ok setenv test-args debug,loopback,media
From the OpenBoot Diagnostics Test Menu
It is easiest to run OpenBoot Diagnostics tests interactively from a menu. You access
the menu by typing obdiag at the ok prompt. See "How to Isolate Faults Using
Interactive OpenBoot Diagnostics Tests" on page 67 for full instructions.
The obdiag> prompt and the OpenBoot Diagnostics interactive menu (
appear. Only the devices detected by OpenBoot firmware appear in this menu. For a
brief explanation of each OpenBoot Diagnostics test, see
OpenBoot Diagnostics Test Descriptions" on page 47.
What It Does
Invokes built-in self-test (BIST) on external and peripheral devices
Displays all debug messages
Verifies bus and interconnect integrity
Exercises external loopback path for the device
Verifies external and peripheral device media accessibility
Attempts to restore original state of the device if the previous
execution of the test failed
Displays only errors rather than the status of each test
Displays main test and each subtest that is called
Displays detailed messages of status of all tests
Displays backtrace of N callers when an error occurs
• callers=0 — Displays backtrace of all callers before the error
Continues executing the test until N errors are encountered
• errors=0 — Displays all error reports without terminating
testing
Chapter 2 Diagnostics and the Boot Process
FIGURE 2-3
in "Reference for
TABLE 2-12
)
17