Which problem-solving techniques are still available in macOS Tahoe? While Intel Macs still have a few, Apple silicon Macs don’t have many left.
permissions
Deconfusing the term permissions from security controls and privacy protection. While permissions are set in a file’s attributes, privacy is controlled through elaborate rules.
First we repaired disk permissions, until SIP made that impossible. Then we reset user permissions until Apple withdrew that advice. Next we ran repairHomePermissions in Recovery. Should you still use that?
How does your Mac know what permissions to set on newly created folders and files? It uses a umask. This explains what that is, how to work it out, and how to change it.
Permissions, privacy and security protections can conspire to prevent us from accessing our own files. They aren’t integrated, consistent or documented, and badly need improvement.
Permissions, ACLs, TCC’s privacy controls, SIP and app sandboxes. What they are, and how you can control them to access and maintain your files.
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.
Repairing permissions has a long history in Mac OS X. The permissions concerned have changed over the years, and it’s no longer what it once was.
What’s blocking you from saving that document: permissions, ACLs, privacy, an extended attribute, or what? Here are some clues.
The Eclectic Light Company 