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Software for building bootable usb mac how to#

This is the password you use to make changes on your Mac or log in.

Enter your administrator account password.

Sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume Names are case sensitive and shouldn't have space.): The name of the drive can't have any spaces, and it is case sensitive.Įnter the following text into Terminal ( Don't forget to change the name "MyVolume" in the text below to the actual name of your external drive. If it is not named "MyVolume," you will need to change the command syntax for the pathname where it says: Volumes/MyVolume.

Recall the name of your formatted external drive when entering the following text into Terminal.

Scroll down and double click on Terminal. VPN Deals: Lifetime license for $16, monthly plans at $1 & more You'll also need to ensure that macOS Big Sur is in your Applications folder, and you'll need to know the name of the external drive. Important: You will need to use an administrator account on your Mac to run the Terminal commands to create a boot drive.

Software for building bootable usb mac how to#

How to put macOS Big Sur onto your external drive Your thumb drive or external hard drive is now ready.

Click Done when the process is complete.

If Scheme is available, select GUID Partition Map.

Select Mac OS Extended from the format list.

If you have more than one external drive with the same name, you will need to rename the drive you are using as a bootable installer now.

Note the name of your external hard drive (probably "Untitled") because you will need it when you create a bootable drive.

Select your thumb drive or external drive under External.Ĭlick on the Erase tab at the top of the window.Scroll down and double-click on Disk Utility. Scroll down and double-click on Utilities.Select Applications from the list on the left side of the window.

Click on Finder in your Dock to open a Finder window.Plug the thumb drive or cable for your hard drive into the appropriate port on your Mac.

You'll need to start with a clean thumb drive or external hard drive to make it a bootable drive. How to format your external drive for macOS Big Sur