Most users won’t have noticed, but Recovery now works quite differently on M1 series Macs than it did in Big Sur. Here’s a detailed explanation of the changes.
1TR
Soon M1 Macs will be able to boot from two major versions of macOS, and with new models coming, users are going to have more complex systems. How will Recovery cope?
Recovering from one regular panic should be straightforward. But what if it’s a boot loop, in which your Mac tries to start up, panics, restarts, in an endless loop? Don’t panic: here are the solutions.
Terminal in Recovery on an M1 Mac has access to many valuable command tools, including USB-C diagnostics,options otherwise unavailable in csrutil, and more.
How your M1 Mac starts up in the Recovery mode of your choice, or when it decides you need to take a trip to Recovery to fix an issue.
macOS 11.4 brought major changes to the way M1 Macs handle external bootable disks. This explains how this works during the boot process.
There’s 1 True Recovery, Fallback Recovery and one other recovery mode. Disambiguation, explanation and how this changed in macOS 11.4.
How an M1 Mac can start up from an external bootable disk, and how that can fail. All about boot security policy, and how that’s applied.
How changing a volume’s boot policy can let you boot in older macOS, and update, if you wish. For anyone who uses external bootable disks with an M1 Mac.
If you’re considering getting an M1 Mac, or already have one, this new book is an essential guide and reference.
The Eclectic Light Company 