Secure Boot and its 5 stages, the SSV, support for external bootable disks, the SEP, Recovery, and lightweight virtualisation.
recovery
Coping with 64-bit code, APFS, the different CPU, the SSV, System Settings, Recovery Mode, and how to get the best from migration and sharing in iCloud.
From blessing Classic Mac OS, through SUM and the first Recovery partition in Mac OS X Lion, right up to 1 True Recovery on Apple silicon Macs.
Although your Mac may be unable to boot into macOS, it might be able to start up in Recovery, or offer its internal SSD in Target Disk Mode.
Using local Time Machine backup, iCloud Recovery, and saved versions to recover previous and current versions of files in iCloud Drive, and their limitations.
What to do when your Mac panics during booting, and enters a boot loop, or when it simply fails to get to the login window.
A new way to enter fallback Recovery can now be triggered during a restart. Here’s a full review of primary and fallback Recovery modes for M1 and M2 Macs.
Apple silicon Macs are better-equipped to prevent and deal with disaster. Restoring in DFU mode is extremely unusual, and more powerful than anything you can do with an Intel Mac.
Did your Mac take a brief trip into Recovery after the 13.2.1 update? What is authenticated restart, and how could you use it? What does fdesetup do?
If there’s a problem, you may try Recovery mode. What do you do when that proves to be a problem? Solutions for Intel and Apple silicon Macs.
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