Recent oddities with FileVault Recovery Keys, and a new exploit GoFetch, raise concerns over how secure FileVault protection is.
Apple silicon
Sometimes Apple silicon Macs refuse to boot from a bootable system. How to use bputil to check LocalPolicy and work out what’s gone wrong.
Has Apple fallen behind in ML and AI? Why hasn’t it got its own Large Language Model, and how can it possibly catch up now?
There’s a problem with your Mac, so you try starting it up in Recovery. But that doesn’t work. What should try next? Intel and Apple silicon Macs are then quite different.
Simply having a boot volume group with a System snapshot in it won’t get your Mac to start up from that disk, particularly if it’s an Apple silicon model. Some details.
Secure Boot and its 5 stages, the SSV, support for external bootable disks, the SEP, Recovery, and lightweight virtualisation.
Memory, from L1 instruction cache to main memory, and how it came to be Unified. Why the internal SSD isn’t like others, and why it’s so essential.
How the NEON vector processor, neural engine, matrix co-processor, and GPU all deliver high performance with low power and energy use.
What do you do when your Mac refuses to log you in because it thinks your password is incorrect? Don’t rush or panic, but follow these steps.
Running threads at different frequencies on the same core type can’t save energy and extend battery endurance. That’s where 2 core types come in handy.
The Eclectic Light Company 