When I go to shutdown my mid 2011 Mac Mini (running OS X El Cap, EDIT* 10.11.6), it will not do so "cleanly." I close all applications, then click Apple > Shutdown and finder closes like it's going to shutdown, but it gets stuck. I have to hold the power button till it shuts down, then when it powers back on I get the error message (with a yellow exclamation point):
You shut down your computer because of a problem. If you want to open the applications that were open when you shut down, click Open. If you do nothing, the computer will continue to login in 17 seconds...
So far I have tried:
- Opening Disk Utility and running "First Aid" on the SSD. I get a green check mark when done.
- Booting to Recovery (Cmd + R) and running First Aid.
EDIT: Apparently "First Aid" is not the same as repairing disk permissions! Looking into this... http://osxdaily.com/2015/11/04/verify-repair-permissions-mac-os-x/
EDIT2: As a result of the issue, I am unable to install any OS X updates and the only way I can reboot is via the terminal command
sudo reboot now
EDIT3: Booting in verbose mode, I see many (about 20 or so) of these:
Could not open PlatformSupport.plist
ERROR!!! Recovery Image verification fail with status [0x800000000000000e]
Error loading kernel cache 0oxe)
What could be the issue here? Anyone know what logs files I can check and where? Thanks.