You will also need to download a copy of the Ubuntu OS. Step 1 : Install the Etcher software on your Mac computer after downloading it from the official source. In this example, we will show you how to create an Ubuntu boot drive on Mac OS. There are some initial preparatory steps that you will need to execute before actually creating the boot drive from your ISO file. Part 2: How to Make Bootable USB Flash Drive from ISO (Mac)Įtcher is a great tool to create a bootable drive on computers running Mac OS.