Want one external drive from which you can boot two (or more) different versions of macOS? Here’s how to make it.
Disk Utility
They’re hidden away and never promoted at WWDC, but vitally important to every Mac user. Could you imagine not having Disk Utility, for example?
Only one previously reported bug appears to have been fixed in 10.14.5. Here’s a list of some of those which remain.
Why measuring free and used disk space is not so simple in APFS, and which estimates you should trust.
Several serious bugs have been fixed in this update. Here’s a list of those which still remain. Please add more as you come across them.
iOS 10.3, released on 27 March 2017, thrust the new file system on a great many unsuspecting users. Apple chose a high risk strategy. Has it paid off?
Want to increase the size of a disk image in APFS? If you’re relying on Disk Utility to do it, you’re out of luck. But here’s how to do this at the command line instead.
Adding volumes in APFS is quick and simple. But why would you ever want to add a container to a disk? An exploration of their differences, and when containers are useful.
Should you install, re-install, or clean (re-)install macOS? Why, how to, and what they entail.
Disk Utility claims to perform secure erase on SSDs, but does no such thing. Here are workarounds to do what it doesn’t, and details of a bug preventing encryption of APFS volumes.
