[Bug 1268795] Re: unable to automatically commission Cisco UCS server due to BMC user permissions

[Jason Hobbs]

I've been unable to reproduce the failure again over hundreds of tries.
I ran a script that repeatedly that reset's the user in slot 10's
settings, runs the maas_ipmi_autodetect.py script, and checks for the
correct user permissions. It worked every time.

At this point, I plan to write a patch for maas_ipmi_autodetect.py that
verifies the correctness of settings after applying them.  If settings
are incorrect, a retry could be performed, or an error could be raised
immediately. IPMI has retries built in, so if a setting isn't applied
when freeipmi claims to have applied it successfully, raising an error
seems like the right thing to do. This should help find the error sooner
and hopefully make it easier to debug.

Another thing to note is that maas_ipmi_autodetect.py doesn't check if
bmc-config (freeipmi) returned an error after applying settings. I
created a separate bug and merge proposal for that here
https://bugs.launchpad.net/maas/+bug/1279107.  The settings verification
patch for this bug will depend on that patch.

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https://bugs.launchpad.net/bugs/1268795

Title:
  unable to automatically commission Cisco UCS server due to BMC user
  permissions

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