This reference covers fsck_apfs, diskutil information, diskutil apfs, conversion of HFS+ to APFS, mount_apfs, and newfs_apfs.
FileVault
Recent oddities with FileVault Recovery Keys, and a new exploit GoFetch, raise concerns over how secure FileVault protection is.
You’ve just updated to 14.4 or 14.4.1 and are prompted to set up a new Recovery Key for FileVault. What do you do next, and how should you check the key?
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.
How it checks whether your Mac’s firmware and security protection are current, and screens for major security issues.
Do you need to back it up when the problem is minor? Should you erase its internal storage? Anything else you need to do?
If you’re wondering how to store snippets of private info, sensitive files, or folders full of secrets, here’s how to use the right features in macOS.
As macOS doesn’t have a dashboard to warn you of dangerous security settings, it’s worth checking them. Here’s what to look for, and how to correct them.
What if you’ve forgotten your Mac’s password, or the secondhand Mac you bought expects you to enter one, or its owner has died?
Here’s an APFS (Encrypted) volume that isn’t encrypted, and an unencrypted volume with FileVault active. Something must be wrong.