Re:Apple Helps Asahi Linux
by gsnedders on Friday December 17, 2021 @12:02PM
(#29594920)
Note there's also macOS-related reasons to use the different modes:
Reduced security mode is needed to boot into outdated macOS installs (specifically, I believe this is "outdated, insecure, at install-time"), along with loading kernel extensions (which aren't supported in full security mode on Apple Silicon).
Permissive security mode is needed to boot into macOS with a custom XNU kernel.
But yes, this is a significant change to iOS devices, but not to older macOS devices.
Reduced security mode is needed to boot into outdated macOS installs (specifically, I believe this is "outdated, insecure, at install-time"), along with loading kernel extensions (which aren't supported in full security mode on Apple Silicon).
Permissive security mode is needed to boot into macOS with a custom XNU kernel.
But yes, this is a significant change to iOS devices, but not to older macOS devices.