How to create a bootable Ubuntu USB stick on a Apple MacBook

Source: https://askubuntu.com/questions/801458/how-to-create-a-bootable-usb-stick-on-a-apple-macbook

1. Download Ubuntu ISO image from here: https://www.ubuntu.com/download
2. Download & install Etcher: https://etcher.io
3. Insert the USB stick and open Etcher:

Note: You should erase & format the USB stick before creating the bootable image

Go to “Disk Utility” from “Applications -> Utilities” -> select the USB stick -> select “Erase” -> choose format: MS-DOS (FAT) and scheme: GUID Partition Map