Next, change the Format to Mac OS Extended (Journaled).

From the drop-down menu, select 1 Partition.

Click the Partition tab in the right side pane.

In Disk Utility, from the left hand pane, select the USB drive to format.

Go to Disk Utility program from Launchpad (A rocket symboled icon in the bottom plank). To format the USB drive, plug in the USB key. So the first thing you would need to do is to format your USB drive in Mac OS Extended format. Let’s see what you need to for a bootable USB: Step 1: Format the USB driveĪpple is known for defining its own standards and no surprises that Mac OS X has its own file system type known as Mac OS Extended or HFS Plus. Following all the steps carefully will have you going. I used this method when Etcher did not exist.īe careful while using the command. This is an old method but evergreen method. The first option is for entering the live Ubuntu session Method 2: Create bootable Ubuntu USB in macOS using command line You should see the grub screen with option to boot into live Ubuntu session (the first option). If you see two EFI Boot options, choose either of them. At start up when the Apple tune starts up, press and hold option (or alt) key. Step 4: Booting from the live Ubuntu USB on macOS Once the purpose of Linux USB is over, you can use Gparted tool in macOS or Linux to format this USB back to normal.Īs long as Etcher gives you a success message about flash completion, no need to worry about it. It’s just that the USB is now in a format your macOS does not like and hence it complains. When the process completes, you should see a message that the “ disk you inserted was not readable by this computer“. It will take a few minutes at the most to complete the process. If it does not, click on the ‘Target’ button and select the correct USB device.īrowse to the downloaded Linux ISO file and hit the flash button. It should automatically recognize the plugged in USB (unless there are more than one). Make sure that there is no important data on it because it will be formatted. Installing Etcher on macOS Step 3: Using Etcher to create bootable Linux USB

Drag the Etcher icon to the Applications icon. Double click on the downloaded file and it will open the installer.

As a macOS user you probably already know how to install DMG file.

Create a bootable installer for mac