Mac won't start up; peerManager is missing

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Level 1

12 points

Mac won't start up; peerManager is missing

Earlier today I tried to start up my Mac mini. Apple logo and progress bar came up, but the progress bar started filling slower and slower as time passed, until eventually it stopped at 100% and did nothing. Retried startup, but same thing happens every time, I even tried safe mode but to no avail. So I decided to boot in SUM and see if I could spy any error messages. There's a lot of stuff here that looks unfamiliar, but I saw one line that seems to be repeating a lot:

IO80211Interface::updateReport _peerManager is missing

i have no clue what this means or if it's fixable. Tried fsck and it didn't help. I'm out of ideas and a Google search turned up nothing. Help?

Mac mini late 2014, 2.6 GHz 8GB RAM

macOS Sierra

thanks in advance for your time

Mac mini, macOS Sierra (10.12)

Posted on Oct 24, 2016 8:19 PM

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Answer 1

lllaass

Level 10

210,513 points

Oct 25, 2016 1:18 AM in response to cheesehead84

- Try resetting the SMC and NVRAM/PRAM

Intel-based Macs: Resetting the System Management Controller (SMC)

https://support.apple.com/en-us/HT201295

About NVRAM and PRAM

https://support.apple.com/en-us/HT204063

- Try starting in Safe Mode

OS X: What is Safe Boot, Safe Mode?

https://support.apple.com/en-us/HT201262

- Boot to Recovery and repair the startup disk

OS X: About OS X Recovery - Apple Support

https://support.apple.com/en-us/HT201314

- If it is repairable reinstall the OSX

How to reinstall OS X on your Mac - Apple Support

https://support.apple.com/en-us/HT204904

- If you do not have a backup use disk utility to restore the internal disk to an external disk so you can try to recover data.

Then format the startup disk and do a fresh install of OSX

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Answer 2

cheesehead84 Author

Level 1

12 points

Oct 25, 2016 8:18 PM in response to lllaass

I can't seem to boot into my recovery drive, or any other external startup disk. What does work, however, is my Bootcamp partition with Windows 8.1

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Answer 3

lllaass

Level 10

210,513 points

Oct 26, 2016 12:53 AM in response to cheesehead84

Boot to Internet Recovery:

If you can't start up from macOS Recovery, try holding down Option-Command-R to start up from macOS Internet Recovery*.

About macOS Recovery - Apple Support

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Answer 4

cheesehead84 Author

Level 1

12 points

Oct 26, 2016 6:13 AM in response to lllaass

Internet recovery is also a no go. Spinning globe appears and bar fills up, then switches to apple logo and I have the exact same problem as every other time. Only difference is the bar fills up less (only about 40%) before it starts crawling.

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Answer 5

lllaass

Level 10

210,513 points

Oct 26, 2016 6:52 AM in response to cheesehead84

Do you have another Mac?

If not

- Make an appointment at the Genius Bar of an Apple store.

Apple Retail Store - Genius Bar

https://www.apple.com/retail/geniusbar/

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Answer 6

cheesehead84 Author

Level 1

12 points

Oct 26, 2016 8:17 AM in response to lllaass

I do have another Mac mini, late 2010. Too old?

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Answer 7

lllaass

Level 10

210,513 points

Oct 26, 2016 9:46 AM in response to cheesehead84

On the 2010 Mini download the Sierra installer from the Purchased section of the Mac App Store.

Create a USB bootable installer using

http://liondiskmaker.com/

Try booting from that USB media. Press and hold the Option key during bootup and select the USB media.

Then try installing Sierra on top of existing installation.

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Answer 8

cheesehead84 Author

Level 1

12 points

Oct 26, 2016 12:35 PM in response to lllaass

Installer disk is also failing to boot

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Answer 9

lllaass

Level 10

210,513 points

Oct 26, 2016 12:50 PM in response to cheesehead84

If you obtained same symptoms then off the Apple store, it sure appears you have a hardware problem

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Answer 10

VincRs

Level 1

4 points

Nov 2, 2016 1:52 PM in response to cheesehead84

Hi, I have the same issue on a MacBook Pro 2011. I tried to startup the machine using almost all keys combination, but nothing seems to help so far. Hardware diagnostic over the Internet has not shown any issue, so it's likely to be a SW problem. Next I'm going to do is to install a fresh copy of the os over the internet and then recover the data I backup up through time machine.

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Answer 11

efeigenb

Level 1

24 points

Nov 17, 2016 8:47 PM in response to cheesehead84

Hi cheesehead84,

I experienced the same symptoms immediately following a power outage. I tried all the usual steps (zap pram, reset smc, safe mode, single user/fsck -fy, recovery mode/repair) and nothing helped. I have Disk Warrior on an older iMac and connected it to my mini via firewire and target disk mode. Disk Warrior did its thing and made some repairs. When I rebooted the mini, it made it past the loading screen and is now working again! Disk Warrior is pricey but it has saved me on multiple occasions. Maybe it can help you too. Good luck!

-figz

p.s. Time for me to invest in a UPS!

Mac mini late 2012, 2.3 Ghz, 16GB RAM

macOS Sierra 10.12.1

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