Chapter 6 Diagnostics 6-11
Tip – Use the show-devs command to list the hardware device paths.
To customize an individual test, you can use test-args as follows:
This affects only the current test without changing the value of the test-args
OpenBoot configuration variable.
You can test all the devices in the device tree with the test-all command:
If you specify a path argument to test-all, then only the specified device and its
children are tested. The following example shows the command to test the USB bus
and all devices with self-tests that are connected to the USB bus:
6.5.2.2 What OpenBoot Diagnostics Error Messages Tell You
OpenBoot Diagnostics error results are reported in a tabular format that contains a
short summary of the problem, the hardware device affected, the subtest that failed,
and other diagnostic information.
CODE EXAMPLE 6-1 displays a sample OpenBoot
Diagnostics error message.
ok test /usb@1,3:test-args={verbose,debug}
ok test-all
ok test-all /pci@9,700000/usb@1,3
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