Back in the old days, multi-boot setups used to be a huge pain. Between very picky operating systems and bootloaders overwriting one another, keeping such a setup in a working state could get quite cumbersome. Thankfully, with EFI boot being the standard on most recent computers, things have gotten quite a bit easier, and any modern Hackintosh installation that uses Clover can dual-boot macOS and Linux with just a few easy steps.
Creating the installation media
While there is a huge variety of tools that you can use to burn that disk image to a USB drive, my favourite is Etcher, which you can install from the official website, or through Homebrew Cask by running
brew cask install etcher.
Flashing a disk image with Etcher is incredibly simple:
Download and open Etcher
Drag the Linux disk image you've downloaded earlier on the app
Select the USB drive you want to flash it to (just make sure you don't erase something important!)
With that, you should be all set to proceed to the next step.
Make space for the Linux installation
After you created your install media, you need to make space for your Linux installation. To do that:
Open Disk Utility
Select the drive you are installing Linux on
Create a new partition and resize it to be as big as you need it to be
It does not matter which file system you use for the new partition, since you will need to format it anyway during the Linux install process, though I would recommend selecting FAT, just in case the Linux distribution you're installing is picky about detecting file systems.
Now that you've made space for the new operating system, you need to install it.
Install the Linux distribution
When you reboot your computer, you should see your USB drive in Clover. If you have a very short timeout for the bootloader, just make sure to press a key while it boots so that you don't end up back in macOS again. Select your USB drive, and you'll be on your way to installing Linux - just follow the instructions for installing whatever Linux distribution you've chosen, making sure to use the partition you created earlier to install it.
Did you try this dual-boot setup, or are you going stick with just one operating system on your computer? Let us know in the comments below!