Download Netra 440 Server Diagnostics and Troubleshooting Guide

Note – Should the POST output contain code names and acronyms with which you
are unfamiliar, see TABLE 2-13 in “Terms in Diagnostic Output Terms” on page 47.
5. Try replacing the FRU or FRUs indicated by POST error messages, if any.
For replacement instructions, refer to the Netra 440 Server Service Manual.
6. If the POST diagnostics did not turn up any problems, but your system does not
start up, try running the interactive OpenBoot Diagnostics tests.
For more information, see:
■
“Isolating Faults Using Interactive OpenBoot Diagnostics Tests” on page 62
Isolating Faults Using Interactive
OpenBoot Diagnostics Tests
Because OpenBoot Diagnostics tests require access to some of the same hardware
resources used by the operating system, the tests cannot be run reliably after an
operating system halt or L1-A (Stop-A) key sequence. You need to reset the system
before running OpenBoot Diagnostics tests, and then reset the system again after
testing. Instructions for doing this follow.
▼
To Isolate Faults Using Interactive OpenBoot
Diagnostics Tests
1. Log in to the system console and access the ok prompt.
2. Set the auto-boot? OpenBoot configuration variable to false. Type:
ok setenv auto-boot? false
3. Reset or power cycle the system.
4. Invoke the OpenBoot Diagnostics tests. Type:
ok obdiag
The obdiag> prompt and test menu appear. The menu is shown in FIGURE 2-3.
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Netra 440 Server Diagnostics and Troubleshooting Guide • April 2004