Add Raspberry Pi repository in Ubuntu

I installed Ubuntu 20.04 LTS Server on my Raspberry Pi 4 8 GB and needed to install raspi-config. raspi-config is a simple (if long and involved) shell script to configure Pi hardware and Raspbian settings. It is just a front end to the underlying system commands. Found that I need to add Raspberry Pi repository in Ubuntu.

In Ubuntu 20.04 LTS, /etc/debian_version is bullseye/sid, so it seems to be based on bullseye (Debian 11.0). Since http://archive.raspberrypi.org/ does not have bullseye, I initially chose buster. Then I changed that to bullseye.

Since bullseye is bit newer, perhaps buster is the safer choice right now.. Code below works for both.

DEB-based distros (Ubuntu, etc.)

To add Raspberry Pi repository in Ubuntu, run the following two commands:

Buster

echo deb http://archive.raspberrypi.org/debian/ buster main | sudo tee /etc/apt/sources.list.d/raspberrypi.list

Bullseye

echo deb http://archive.raspberrypi.org/debian/ bullseye main | sudo tee /etc/apt/sources.list.d/raspberrypi.list

Then run

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 7FA3303E
sudo apt-get update

That’s it, Raspberry Pi repository will be enabled on the OS and will automatically get updated too.