The easiest way to make a bootable iso image is with Balena Etcher. It’s fast, easy to use, and available on Mac, Windows, and Linux. You can download it here.
- Launch Etcher.
- Plug in your SD card or USB drive.
- Select flash from file and navigate to your iso image.
- Choose your disk.
- Start the flash.
After flashing, Etcher will automatically verify that the write was successful.