Guide: How to Create a Bootable macOS Monterey USB Installation Key.
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Here are instructions on how to create a bootable USB installation key for macOS Monterey. This bootable USB drive can be used to install macOS Monterey on multiple Mac computers, regardless of their macOS version.
Step 1: Create Bootable USB Installation Key
To create a bootable installation key, connect a USB flash drive of 16 GB or more to your computer and open the Mac App Store from your dock.
Step 2: Go to the macOS Monterey program page and click the “Download” button.
Step 3: You may be shown a Software Update window. Click “Upgrade Now” or “Download” to begin downloading the macOS installer.
Step 4: When the macOS Monterey installer opens, press Command+Q on the keyboard to close it.
Step 5: Open your Applications folder and select the “Install macOS Monterey” app. Press Command+i on the keyboard and check its size.
If the macOS Monterey installation app is over 10 GB, you can proceed to the next step.
If it is very small (~20 MB), you have some options.
- You can run it to install macOS Monterey and then download the installer again.
- You can delete it, upgrade to the latest version of Big Sur from the Mac App Store, and then download the installer again.
- You can delete it and use one of the direct download links available here. How to Create a Bootable macOS Monterey USB Installation Key [Video]
Step 6: Once you have confirmed that you have the full installer, open Terminal from the Applications > Utilities folder. How to Create a Bootable macOS Monterey USB Installation Key [Video]
Step 7: Note the name of your USB drive. How to Create a Bootable macOS Monterey USB Installation Key [Video]
Execute the following command in the Terminal window, replacing ‘Untitled’ with the name of your USB key, which will become the bootable installation key. Note that this will erase the entire USB drive.
sudo ‘/Applications/Install macOS Monterey.app/Contents/Resources/createinstallmedia’ –volume ‘/Volumes/Untitled’
You will be prompted to enter your administrator password.
Type Y and press enter to start the process.
Step 8: If prompted to allow Terminal access to your removable device, click OK.
After about 30 minutes, the creation of your macOS Monterey USB installation key will be completed.
Install macOS Monterey If you have an Intel-based Mac, restart the computer and hold down the Option key after the startup chime. You will be presented with a list of bootable drives. Select the USB installation drive from the boot menu to start.
If you have an Apple Silicon-based Mac, turn off your device. Turn it back on and hold the power button until the boot menu appears. You can then choose the bootable installation drive to begin the installation of macOS Monterey.
USB Flash Drive If you need a recommendation for which USB flash drive to use for your macOS installation, Samsung Fit Plus is a compact and affordable choice. Most drives of 16 GB or more will work, but for optimal performance, it is recommended to use a drive that supports USB 3.0 or newer.