El Capitan, Mac refusing to shut down - Solved - ehMac.ca
Facebook
Twitter
YouTube
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read Advertise


Reply
 
LinkBack Thread Tools Display Modes
Old Feb 9th, 2016, 12:17 PM   #1
Honourable Citizen
 
CubaMark's Avatar
 
Join Date: Feb 2001
Location: Nova Scotia, Canada
Posts: 17,898
Send a message via AIM to CubaMark
Exclamation El Capitan, Mac refusing to shut down - Solved

The mysterious case of the undead iMac

Sometime in the last few months, my 5K iMac started misbehaving. Not in any of the ways you’d expect—crashes, lock-ups, weird error messages, that sort of thing. No, one day I came into my office in the morning and the iMac and all the peripherals were still on, the spinning gear animation still right where I had left it upon choosing Shut Down from the Apple menu the night before.

I fancy myself a pretty good Mac troubleshooter, but this was a bit baffling to me. The system has already gone into shutdown mode by the time it gets to this point; I can’t bring up a terminal window or run Activity Monitor to see what might be going on. Even stranger, when I manually powered off the iMac and restarted it, then tried to shut it down, it shut down properly. Okay. Maybe it was nothing. I started up and got about my business.

After a full day’s work, I shut down the iMac again—and once again, the spinning-gear animation appeared. I came back after dinner and it was still there. Okay, this was a problem. I reset my iMac’s power manager, zapped the PRAM, did all of the weird system-level things I could think of, and nothing solved the problem.
(Read on for the fix at: SixColors)
__________________
* * * * * * * * * * * * * * * * * * * *
The Cuban Revolution as Socialist Human Development Brill Books (Amazon Paperback)
CubaMark is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 04:12 AM.



Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright © 1999 - 2012, ehMac.ca All rights reserved. ehMac is not affiliated with Apple Inc. Mac, iPod, iTunes, iPhone, Apple TV are trademarks of Apple Inc. Content Relevant URLs by vBSEO 3.6.0 RC 2

Tribe.ca: Urban living in Toronto!