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You are here: MacNN Forums > Software - Troubleshooting and Discussion > macOS > Log to Track Power Outages?

Log to Track Power Outages?
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-Q-
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Aug 12, 2010, 01:25 PM
 
My neighborhood has been experiencing an increasing number of power outages and "blinks" over the past month and the power company is telling me they're not seeing anything obviously wrong with their system.

While I'm waiting for my UPS to arrive, is there a log I can review to see how frequently this has been happening, or something to indicate an improper shutdown? I've reviewed the console but didn't see anything that appeared to be what I needed.
     
besson3c
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Aug 15, 2010, 04:38 AM
 
Nope... In the event of an improper shutdown the shutdown signal would not be logged, I'm pretty sure.
     
Art Vandelay
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Aug 15, 2010, 12:26 PM
 
At every boot, there is an entry in the kernel.log indicating the previous shutdown cause. Zero is a normal shutdown.

8/14/10 11:05:33 PM kernel Previous Shutdown Cause: 0
Vandelay Industries
     
besson3c
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Aug 15, 2010, 01:08 PM
 
I stand corrected!

In enlightening myself I also came across this listing of error codes, which seem to coincide:

Mac Error Codes
     
-Q-  (op)
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Aug 15, 2010, 01:30 PM
 
Many thanks to you both! I have a number of

Code:
Previous Shutdown Cause: 3
which seems to be related to unexpected shutdowns and a great record of my power issues. Thanks again!
     
   
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