Tuesday Apr 07, 2009

Thank goodness for docs.sun.com

Where's my screwdriver? I got a bit close to the 'tin' today. I have been trying to boot a lab machine, an x4600, that clearly hasn't been used for a while.

Its previous user had kindly documented the tcp/ip addresses used, but we couldn't ping either of them, so http'ing onto the ILOM server was right out. We plugged in a console into the VGA port and tried to boot from an Open Solaris live CD, this failed with the error messages zooming of the top of the console. So we tried S10 and the same thing happened. This meant we had to actually read some documentation. This is at docs.sun.com, and has a bunch of docs on the x4600. Having equipped ourselves with some knowldege,

  1. We attatched a real serial terminal to the serial console port. This involved checking the serial comms port paramters. Its a very long time since I've had to do that. We then checked the tcp/ip settings, once we realised these were correctly set,
  2. We checked the ethernet cable to ensure it was correctly connected and seated.
  3. This enabled us to log into the ILOM using the browser interface. Everything seemed OK so
  4. We used ssh to login into the ILOM service and started the console
  5. We power cycled the machine using the browser

This allowed us to capture the errors as the Live CD image of S10 failed to boot.

The lessons of this story are

  1. sometimes one should read the documentation earlier rather than later
  2. check your cabling
  3. the docs.sun.com x4600 documentation is good
  4. sometimes systems do have hardware faults

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