How install dotnet 8 on Ubuntu 22.04

In this tutorial I will show how install .Net SDK on Ubuntu 22.04 LTS

Updated: 6 December 2023

Install key

You need install a key. 

To add the Microsoft repository, you have to first download & install the key file.

sudo wget -O - https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor | sudo tee /etc/apt/keyrings/microsoft.gpg

This command will download the key, and will save to ‘/etc/apt/keyrings’ directory.

Add the Microsoft repository for apt

Create a new file into path "/etc/apt/sources.list.d/microsoft.sources"

This will add microsoft repository.

sudo nano /etc/apt/sources.list.d/microsoft.sources

Paste this code into file:

Types: deb

URIs: https://packages.microsoft.com/ubuntu/22.04/prod/

Suites: jammy

Components: main

Architectures: amd64

Signed-By: /etc/apt/keyrings/microsoft.gpg

For Ubuntu 20.04, replace 22.04 with 20.04, and jammy with focal.

Install .Net

Install using this command. 

sudo apt install dotnet-sdk-8.0

You can check the new version installed using command. 

dotnet --version

UnInstall .Net

sudo apt remove --autoremove aspnetcore-runtime-8.0 dotnet-sdk-8.0 dotnet-runtime-8.0

And, remove the Microsoft repository by running the 2 commands below to delete sources and key files.

sudo rm /etc/apt/keyrings/microsoft.gpg

sudo rm /etc/apt/sources.list.d/microsoft.sources