Before macOS 12.3, upgrades and updates were different, and only admin users could authenticate the installation of an upgrade to macOS. Now even standard users can, as explained here.
Ownership
Working with external bootable disks: how to create and add them, ownership and LocalPolicy, how that can be changed, and what happens with errors and failure.
Ownership can mean two very different things on Macs: it might be about Unix permissions, or Apple silicon boot policy. How to tell them apart so you use the right solution for ownership problems.
Rather than migrating some files to a new Mac, they were copied to an external drive. But some of them couldn’t be opened because of ‘permissions’. Here’s why and how to fix it.
To boot from an external disk, Apple silicon Macs need them to have an Owner. Here’s how to investigate ownership, and how it works.
Assigning ownership to an external bootable disk doesn’t always work in Recovery mode on an M1 Mac. But there’s an easy workaround.
Memory, support for multiple external displays, bootable external disks, macOS updates, kernel panics, more ports, and more choice of macOS to install are on my list.
M1 Macs have an elaborate system of keys and certificates which allow the installation of second operating systems, as well as the primary OS, based on Ownership.
The primary admin account on an M1 Mac is its Owner, responsible for authorising the installation and use of second operating systems. Here’s what can go wrong with Ownership.
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