Now exit Terminal and return to "Reinstall macOS". The error should be gone.
If you see this error on a mechanical hard drive (HDD) from 2016 or earlier, you might be trying to install a very new macOS (Big Sur or later) on unsupported spinning media. In that case, consider upgrading to an SSD for both speed and compatibility.
Power off your Mac. Then turn it on and immediately hold down:
This Mac Can Only Install Macos On Apfs-formatted Drives !free! Now
Now exit Terminal and return to "Reinstall macOS". The error should be gone.
If you see this error on a mechanical hard drive (HDD) from 2016 or earlier, you might be trying to install a very new macOS (Big Sur or later) on unsupported spinning media. In that case, consider upgrading to an SSD for both speed and compatibility. this mac can only install macos on apfs-formatted drives
Power off your Mac. Then turn it on and immediately hold down: Now exit Terminal and return to "Reinstall macOS"
