August 14, 2022
How to Make a Bootable macOS Monterey USB Install Key [Video]

How to Make a Bootable macOS Monterey USB Install Key [Video]

Posted October 26, 2021 at 2:44pm by iClarified · 18351 views
These are instructions on how to create a bootable USB install key for macOS Monterey. This bootable USB drive can be used to install macOS Monterey onto multiple Macs no matter their macOS version.



Create Bootable USB Installer


Step One


To create a bootable installer, connect a 16GB or larger USB flash drive to your computer then launch the Mac App Store from your dock.
How to Make a Bootable macOS Monterey USB Install Key [Video]

Step Two


Navigate to the macOS Monterey application page and click the Get button.
How to Make a Bootable macOS Monterey USB Install Key [Video]

Step Three


You may be brought to a Software Update window, click Upgrade Now or Download to begin downloading the macOS installer.
How to Make a Bootable macOS Monterey USB Install Key [Video]

How to Make a Bootable macOS Monterey USB Install Key [Video]

Step Four


Once the macOS Monterey installer launches, press the Command+Q keys on the keyboard to exit.
How to Make a Bootable macOS Monterey USB Install Key [Video]

Step Five


Open your Applications folder and select the 'Install macOS Monterey' app. Press Command+i on the keyboard and verify its size.
How to Make a Bootable macOS Monterey USB Install Key [Video]

If the macOS Monterey installer app is over 10GB, skip to the next step.

If it's tiny (~20MB), you have a few options.
1. You can run it to install macOS Monterey and then redownload the installer.
2. You can delete it, upgrade to the latest version of Big Sur from the Mac App Store, then redownload the installer.
3. You can delete it and use one of the direct download links found here.
How to Make a Bootable macOS Monterey USB Install Key [Video]

Step Six
Once you've verified that you have the full installer, launch Terminal from the Applications:Utilities folder.
How to Make a Bootable macOS Monterey USB Install Key [Video]

Step Seven
Note the name of your USB drive.
How to Make a Bootable macOS Monterey USB Install Key [Video]

Execute the following command in the Terminal window replacing 'Untitled' with the name of your USB key that will become the bootable installer. Please note this will erase the entire USB drive.

sudo '/Applications/Install macOS Monterey.app/Contents/Resources/createinstallmedia' --volume '/Volumes/Untitled'
How to Make a Bootable macOS Monterey USB Install Key [Video]

You will be asked to enter your Administrative account password.
How to Make a Bootable macOS Monterey USB Install Key [Video]

Type Y and press enter to begin.
How to Make a Bootable macOS Monterey USB Install Key [Video]

Step Eight
If prompted to allow Terminal to access your removable device, click OK.
How to Make a Bootable macOS Monterey USB Install Key [Video]

After about 30 minutes the creation of your macOS Monterey USB installer will be complete.
How to Make a Bootable macOS Monterey USB Install Key [Video]


Install macOS Monterey


If you have an Intel Mac, restart your computer and hold down the Option key after hearing the boot sound. You'll be presented with a list of bootable drives. Select the USB installer drive from the boot menu to begin.

If you have an Apple Silicon Mac, power off your device. Turn it back on and keep holding down the power button until you see the boot menu appear. You can then select the bootable install drive to begin installing macOS Monterey.

How to Make a Bootable macOS Monterey USB Install Key [Video]


USB Flash Drive


If you want a suggestion on which USB flash drive to use for your macOS installer, the Samsung Fit Plus is a compact and affordable option. Most drives 16GB or larger will work; however, you'll likely want a drive that is USB 3.0 or newer for best performance.

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suggymoto
suggymoto - October 26, 2021 at 3:12pm
Would this still show in the boot menu on a 2018 and older Mac with T2 and Startup security turned on?
suggymoto
suggymoto - October 26, 2021 at 3:12pm
*2018 and newer
iClarified
iClarified - October 26, 2021 at 3:58pm
You'd need to enable "Allow booting from external media". Boot into recovery mode using Command+R, then choose "Startup Security Utility" from the Utilities menu. The external boot option can be enabled there.
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