This Mac Can Only Install Macos On Apfs-formatted Drives Review

Let’s look at the real-world situations that trigger this error.

When in doubt, . It will automatically download the correct macOS version for your hardware, which typically solves 90% of file-system mismatches. this mac can only install macos on apfs-formatted drives

You are trying to install macOS onto an external USB 3.0 HDD or SSD. The installer incorrectly reads the drive’s connection protocol and blocks the installation. Let’s look at the real-world situations that trigger

If you must use HFS+ (e.g., for a legacy external boot drive for older hardware), you need to: also called HFS+)

The error means: Your target drive is currently formatted with an older file system (usually Mac OS Extended, also called HFS+), but your Mac and the version of macOS you’re trying to install require APFS.