# Algorand v.2.0.0 upgrade on Ubuntu installations

The GPG key changed. It can be updated by just repeating these steps:

```bash
curl -O https://releases.algorand.com/key.pub
sudo apt-key add key.pub
```

# Raspberry PI display

Hi, I wrote this article about running Algorand on Raspberry Pi.

Mostly it just worked like setting up a development environment on any other linux system, installing compilers and libraries and so on, but at one point the Makefile tries to build everything in one go install command and that fai…