Here is how to install and set up Microsoft's .Net Core 5 on Raspberry Pi, this tutorial covers installation for both 64 and 32-bit ARM architecture.
I am using Ubuntu 20.04, but Raspbian should work as well.
To check what OS architecture the Raspberry Pi is, run the following command.
<pre class="wp-block-code">```
uname -m
The output should be something like this. The example below shows an output of ARM 64 architecture.
```
aarch64
```
```
The reason we are doing this test is so we could download the appropriate build archive of .Net Core 5.
Downloading the wrong architecture will not run on the Pi. It will throw an error that states "dotnet file or folder not found".
### Downloads for ARM 64.
The .NET SDK 5.0.101.
```
```
wget https://download.visualstudio.microsoft.com/download/pr/2add7523-39ec-413a-b8a7-24361cc4e599/30489ebd7ebcc723da48a64669860fd0/dotnet-sdk-5.0.101-linux-arm64.tar.gz
```
```
The ASP.NET Core Runtime 5.0.1
```
```
wget https://download.visualstudio.microsoft.com/download/pr/e12f9b23-cb47-4718-9903-8a000f85a442/d1a6a6c75cc832ad8187f5bce0d6234a/aspnetcore-runtime-5.0.1-linux-arm64.tar.gz
```
```
### Downloads for ARM 32.
The .NET SDK 5.0.101.
```
```
wget https://download.visualstudio.microsoft.com/download/pr/567a64a8-810b-4c3f-85e3-bc9f9e06311b/02664afe4f3992a4d558ed066d906745/dotnet-sdk-5.0.101-linux-arm.tar.gz
```
```
The ASP.NET Core Runtime 5.0.1
```
```
wget https://download.visualstudio.microsoft.com/download/pr/11977d43-d937-4fdb-a1fb-a20d56f1877d/73aa09b745586ac657110fd8b11c0275/aspnetcore-runtime-5.0.1-linux-arm.tar.gz
```
```
### Creating the required directory and extracting these archives into the folder.
This folder is created as a hidden type because we don't need to have the folders listed or shown in the file manager, this is the location where the executables and libraries `.Net` are stored. If you want to change the location, feel free to do the required changes.
```
```
mkdir ~/.dotnet/
```
```
Extracting the archives to the` .dotnet` folder.
```
```
tar -xvf dotnet-sdk-5.0.101-linux-arm64.tar.gz -C ~/.dotnet
tar -xvf aspnetcore-runtime-5.0.1-linux-arm64.tar.gz -C ~/.dotnet
```
```
### Setting up dotnet to work with bash.
Open the `.bashrc` file and add the following lines below, for this we are using `nano`, but you can use any editor of your choice.
```
```
nano ~/.bashrc
```
```
Add the lines below to the end of the` .bashrc` file.
```
```
export DOTNET_ROOT=$HOME/.dotnet
export PATH=$PATH:$HOME/.dotnet
```
```
Save the file, by pressing `Control `+ `X `+ `Y`.
You can close this terminal session or SSH connection when you re-login you will have `dotnet `working.
If you want to continue with the same ssh or terminal session run this command and follow the other steps listed below.
```
```
source ~/.bashrc
```
```
### Testing to see if it works correctly.
Let's check the `dotnet `version.
```
```
dotnet --version
```
```
The output should be something similar to the one below.
```
```
ubuntu@pi:~$ dotnet --version
5.0.101
```
```
Let's create our first dotnet project. This command will create a console application with the folder and project name myApp.
```
```
dotnet new console -o myApp
```
```
### Compiling the application and running it.
```
```
cd myApp
dotnet build
```
```
The output should be something similar to this.
```
```
ubuntu@pi:~/projects/myApp$ dotnet build
Microsoft (R) Build Engine version 16.8.0+126527ff1 for .NET
Copyright (C) Microsoft Corporation. All rights reserved.
Determining projects to restore...
All projects are up-to-date for restore.
myApp -> /home/ubuntu/projects/myApp/bin/Debug/net5.0/myApp.dll
Build succeeded.
0 Warning(s)
0 Error(s)
Time Elapsed 00:00:20.41
```
```
Now let's run the app.
```
```
dotnet run
```
```
The output will be like the one below.
```
```
ubuntu@pi:~/projects/myApp$ dotnet run
Hello World!
```
```
If you want to have a complete development environment with an IDE-like interface like Microsoft's Visual Studio Code. Follow the guidelines listed below to set up [Code-Server on Raspberry Pi](https://darryldias.me/2020/turn-raspberry-pi-into-a-remote-linux-development-environment/).