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Oracle® x86 Servers Diagnostics and Troubleshooting Guide

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Updated: January 2020

UEFI Diagnostics Output

This section describes UEFI Diagnostics output. The diagnostic output format is the same, regardless whether the output is displayed in a console (Manual mode) or in an output log file (Enabled or Extended mode).

If you experience any diagnostic test failures, contact Oracle Service personnel for assistance with interpreting diagnostic tests output.

Note -  Information-only commands do not display a test result unless an error such as an invalid parameter has been detected.

At the completion of the test, UEFI Diagnostics displays test results in one of two formats:




  • COMMAND_ID – Indicates all command instances that run in parallel, sequentially starting at 0.

  • COMMAND_NAME$INSTANCE_ID – Specifies the hierarchical command name of the command, and the instances of the command as a decimal number, starting at 1.

  • PASS or FAIL, displayed as Pass=<pass_count>, or Fail=<error_count> – Indicates that the test has either passed or failed, and must be consistent with the -pc and -ec flag settings. For example, if a test is invoked with -pc 10, then the execution status displays as Pass=10 if no error was detected.

  • ERROR_STATUS, displayed as Time Out, Aborted, Killed, Unknown Error, or UEFI_ERROR – Indicates that the command either failed to start a test or encountered a serious error that prevented it from completing the test.

Note -  The Time Out status typically indicates a failure for the boot strap processor portion of the command to communicate with the application processor portion of the command. This status must not be confused with the -time flag, which places a limit on the amount of test time.

An example of UEFI Diagnostics tests output is shown below.

MEMORY test:
- Use walking 0's
0: test$1 : Pass=1, Fail=0
- Use walking 1's
0: test$1 : Pass=1, Fail=0
- Move blocks of data around
0: test$1 : Pass=1, Fail=0