https://www.techradar.com/how-to/how-to-install-ubuntu-on-the-raspberry-pi

How to install Ubuntu on the Raspberry Pi

 

The Raspberry Pi is best characterised by the funky and useful Raspbian operating system. As the name suggests, Raspbian is designed specifically for the Raspberry Pi and is suitable for most applications.

However, if you want to use your Raspberry Pi for desktop computing, you might be disappointed. Raspbian is based on Debian, a Linux operating system designed for stability. Updates take place only once every few years meaning you won’t have the latest version of programs and their features.

Fortunately, there’s a way to bring the popular Ubuntu desktop operating system to your Raspberry Pi. Ubuntu MATE uses an extremely lightweight desktop environment and there’s even a version designed specifically for your Raspberry Pi’s ARM architecture.

In this guide, you’ll learn how to download the latest Raspberry Pi image of Ubuntu MATE, write it to a microSD card and setup the OS on your device. All you’ll need is a microSD card of at least 32GB, microSD card reader and a Raspberry Pi 3.