4
votes
1answer
550 views

Trapped: MacBook always shuts down during EFI SMC Update 1.8. Can't boot. How to remove updater from boot routine?

MacBook Pro i7 Mid-2012 (MacBookPro9,2) running Mac OS X 10.8.5: Downloaded the "offered" EFI SMC Update 1.8 through the AppStore Updates. MacBook restarted, grey progress bar appears w/ spinning ...
5
votes
1answer
762 views

Manually bless firmware when main disk is external

My iMac (mid 2010) keeps pestering me to upgrade my EFI firmware to 1.8. Sadly, no matter how many times I try to to upgrade the EFI (from the manual install, or the auto update), it does not seem to ...
1
vote
1answer
312 views

Does the iMac EFI Update 1.7 change how NetBooting works?

I have a NetBoot server to manage all the Macs in my office. However, when I started a weekly backup of one of my iMacs last week, after rebooting and holding N, I saw the blinking globe for a few ...