See the Technical Specifications for the full list of requirements. The latest supported software version is noted next to each model. You can install Mac OS X Lion on any of these Macs. Mac OS X Snow Leopard 10.6.6 or later or Mac OS X Lion 10.7 already installed.You can now quit Terminal and eject the volume.Mac OS X Lion 10.7 is available for older systems that are not compatible with the latest version of macOS. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Monterey.

After the volume is erased, you may see an alert that Terminal would like to access files on a removable volume.Terminal shows the progress as the volume is erased. When prompted, type Y to confirm that you want to erase the volume, then press Return.Terminal doesn't show any characters as you type. When prompted, type your administrator password.If the volume has a different name, replace MyVolume in the command with the name of your volume. Each command assumes that the installer is in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. Type or paste one of the commands below into Terminal, then press Return to enter the command.

Open Terminal, which is in the Utilities folder of your Applications folder.

Plug in the USB flash drive or other volume that you're using for the bootable installer.

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