2
votes
0answers
426 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
0answers
249 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 ...