The volume should only be half full, but installers and other software complains there’s insufficient free space. What to do.
Disk Utility
In the last few days, Apple has again changed its recommended procedure for resetting or repairing permissions on […]
If you opt for ‘Mac-only’ format, isn’t that sufficient to preserve everything you need in an archive?
Apple has changed its instructions for resetting/repairing permissions on your Home folder, and important cure for many problems.
Why you should always protect backup storage with a UPS. Should you also rebuild its directories every month? And when to archive rather than back up.
The Finder, Disk Utility and Terminal show disks and volumes differently, according to their function. This can appear confusing in Catalina until it has been explained.
When you go to perform a clean re-install of Catalina, what should you do? Which volume(s) to erase or delete, and how to fix problems?
What if you don’t want whole disk encryption? If your Mac doesn’t have T2, or if you’re using an external drive, encryption is still performed in software. Here’s a good solution.
Start up in Safe Mode: should it start by checking and repairing your boot disk, or should you do that separately in Recovery Mode?
Third party tools for checking and repairing APFS are still very limited. Is it better to use fsck to check and repair APFS?
The Eclectic Light Company 