Insert the live Linux media, restart your Mac, press and hold the Option key, and select the Linux media on the Startup Manager screen. If you just want to try Linux on your Mac, you can boot from a live CD or USB drive. Corellium says that Arm-based Linux distributions have more or less settled on a format to get the system running which is nothing like Apples Mach-O boot loader on macOS. However, you will need to use the OPTION key to attempt to boot into Ubuntu after doing that.

That will kill rEFIt and stop it from attempting to load GRUB. To do this, head to the Startup Disk preference setting in Settings.Įvery time the Mac starts, you can also toggle between OS X and Windows by holding down the Option (Alt) key immediately upon startup. You’ll have to get your hands a bit dirtier to install and dual-boot a Linux distribution like Ubuntu. Follow the rEFIt instructions to remove it or just go to: MacIntosh HD/EFI and change the name of the folder to something like.

Once you have Windows installed, you can set the default OS that will start each time you boot your Mac. Select Normal Installation as shown in the image below. A new screen will appear you will need to select the apps that you want to install. In the next screen, select the Keyboard Layout and click Continue.

Set the Default Startup OS or Toggle Between OS X and Windows Select the desired language you want to use and click the Install Ubuntu button to start the installation. The Mac will need to restart to complete the process and will automatically boot into Windows 10 when it's done. Follow the prompts to finish installing Windows.

How to duel boot ubuntu on a mac