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 pathname 'MyVolume' if your external hard drive is named something else):
If it is not named 'MyVolume,' you will need to change the command syntax for the pathname where it says: MyVolume. Scroll down and double click on Terminal. Important:You will need to be in your Mac's administrator account in order to run the sudo Terminal command. Your thumb drive or external hard drive is now ready.
Scroll down and double-click on Disk Utility.Ĭlick on the Erase tab at the top of the window. Select Applications from the list on the left side of the window.
You'll need to start with a clean thumb drive or hard drive in order to get it ready to work as a bootable drive. How to format your external drive for Mac
