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OBP Key Sequences

Some special key sequences can be used to run OBP commands after the system is powered on and before the keyboard flashes the second time. These sequences can come in handy if the NVRAM becomes corrupted.

(Note that on modern Sun keyboards, the "L1" key is labelled "Stop.")

  • L1-f: Invokes FORTH command mode on the serial port before the hardware is probed. fexit continues the initialization.
  • L1-n: Resets NVRAM contents to the default.
  • L1-d: Sets the diag-switch? to true for this boot only.
  • L1: Runs POST in INIT mode, regardless of security settings.




Page © 2011 by the Trustees of Princeton University.
Content © 2011 by Scott Cromar, from The Solaris Troubleshooting Handbook. Used with permission.
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