Create a bootable installer for macOS - Apple Support
https://support.apple.com/en-us/101578
•A USB flash drive or other secondary volume with at least 14GB of available storage, formatted as Mac OS Extended •A full macOS installer You can use an external drive or secondary volume as a startup disk from which to install the Mac operating system. Depending on which macOS you downloaded, enter one of the following commands in Terminal as instructed above. 1.Plug the USB flash drive into your Mac. 2.Open Terminal, which is in the Utilities folder of your Applications folder. Mac with Apple silicon 1.Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installin… Any other Mac
•A USB flash drive or other secondary volume with at least 14GB of available storage, formatted as Mac OS Extended
•A full macOS installer
You can use an external drive or secondary volume as a startup disk from which to install the Mac operating system.
Depending on which macOS you downloaded, enter one of the following commands in Terminal as instructed above.
1.Plug the USB flash drive into your Mac.
2.Open Terminal, which is in the Utilities folder of your Applications folder.
Mac with Apple silicon
1.Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installin…
Any other Mac
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