install ubuntu on raspberry pi
What you’ll need:
1. A microSD card (8GB recommended)
2. A computer with a microSD card drive
3. A Raspberry Pi 2, 3 or 4
4. A micro-USB power cable (USB-C for the Pi 4)
5. A Wi-Fi network or an ethernet cable with an internet connection
6. A monitor with an HDMI interface [optionally]
7. An HDMI cable (Pi 2 & 3) or a micro HDMI cable (Pi 4) [optionally]
8. A USB keyboard [optionally]
Follow the official Ubuntu 4-steps tutorial at
https://ubuntu.com/tutorials/how-to-install-ubuntu-on-your-raspberry-pi