[MacTUG] Known issue with AD bound 10.10 macs failing to reboot after some power interruptions

[James McConachie]

The workaround for machines already stuck at the black screen with white Apple logo with the progress bar stuck between 30-50% is as follows

Boot to single user mode holding down (command)⌘s

At prompt type ‘mount –uw /‘

/usr/bin/vi /etc/rc.server

Type i for insert
#!/bin/sh
/usr/sbin/BootCacheControl jettison
Escape key
:wq

You will receive an error message re $HOME it is safe to ignore
At prompt type ‘reboot'




Issue described here

https://jamfnation.jamfsoftware.com/discussion.html?id=12589

https://www.afp548.com/2015/01/14/when-yosemite-has-fallen-and-it-cant-get-up/

https://discussions.apple.com/thread/6603394?start=30&tstart=0
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