What boot.efi does to prepare to load and run the kernel: building the hardware device tree, handling startup key commands, and more.
The Mac has completed its self-test routines, and now prepares to load the EFI firmware or ‘boot loader’. Where it finds it, what it needs, and how Secure Boot changes this.
What happens in your Mac when you press the Power button? Before it loads the EFI firmware, it goes through self-testing, and initialising key chips.
New MacBook Pro models (2018) with a Touch Bar incorporate the same T2 chip which is built into […]
When you want software to run automatically each time you Mac starts up, there are several ways of doing that. Here’s your choice.
Changes include frequent timechecks by timed, harder access to info about keychains, a couple of possible AppleScript bugs, and APFS snapshots.
A detailed examination of what happens during the first few minutes after starting your Mac up. Vital for anyone trying to diagnose problems in that period.
How to control whether your 2016 MacBook Pro sounds a startup-chime or start up when you open its case, why you can’t unmute a 2017 iMac, and how High Sierra changes your NVRAM.
Safe mode, or Recovery? Which type of Recovery? How to engage all those useful modes at startup, and when shutting down.
How to breeze through the startup process log using new tools in Consolation 3.