From media centers to Kali Linux: How to dual boot on Raspberry Pi

If you own a Raspberry Pi, you can start several operating systems from a single boot medium. All you need is a micro SD card with sufficient room (32GB or more) and a tool called PINN.

This stands for PINN is not NOOBS and gives the Raspberry Pi multiboot functionality.

Multi-booting operating systems can be useful in many cases. For example, if you occasionally need a specialized operating system such as Libre Elec or Kali, or if you’re simply curious and want to try out different operating systems.