These commands will help you in Single user mode and at the boot time.
To boot the system.
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# boot
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Perform diagnostics on hardware and devices.
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# diag
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Test network connectivity.
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# watch-net
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When modified server hardware or any new devices added, reboot with
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# ok boot -r
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Can also perform the reconfiguration boot
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# touch /reconfigure: sync: init 6
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To view the Open Boot release information
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# ok banner
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Different boot commands available with different devices.
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# boot /*boots with the default device that is primary disk*/
# boot cdrom /* boot with CDROM */
# boot net /* boot with network*/
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Change the default boot configuration
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# ok setenv boot-device disk /* setting the hard drive as the primary drive */
Output:
boot-device = disk
# ok printenv boot-device /* verifies the default selected device */
# ok reset /* resets to default device */
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The boot PROM is able to store certain defined variables in non-volatile RAM, so you do not need to type full path of the device at the boot time. You can set alias into the same.
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# ok nvalias net /pci@lf:4000/network@1,1
# ok boot net /* it will boot from the net using /pci@lf:4000/network@1,1 as the path */
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To remove the alias.
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# ok nvunalias net /* removes the alias */
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