What to try if your Mac doesn’t enter Recovery Mode when you want it to. For Apple silicon Macs, there’s Fallback Recovery, while Intel Macs have two forms of internet or remote recovery to choose from.
Startup Security Utility
Step by step through all the features, some undocumented by Apple. Two different Recovery Assistants, Repair Assistant, Erase Mac, Startup Security Utility, change settings and more.
How to check your Mac is booting in Full Security, and how to read its log to verify all the key steps involved in that process.
Systematic and thorough account of the structure and function of bootable external disks and dual-boot systems from High Sierra to Sequoia, and how to diagnose their problems.
Going deeper into Recovery mode, by setting the correct keyboard, sharing the Data volume with another Mac, using full features in Disk Utility and Safari, and avoiding repairing Home permissions.
Explains the three different settings, including Permissive Security, why you might need to reduce security, and how to do so using Startup Security Utility.
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