This guide is based on Ubuntu, this should be more or less the same in both Ubuntu and Debian-based distributions.
Text-instructions
1) Go to installation
2) Click the green Download button
3) Open a terminal window and use the command cd to navigate to the folder where the file were downloaded
4) Use the command python3 eduroam-linux-\ UC.py to start the installation
5) Click "OK" and "Yes"
6) Enter your username and password, username is typed out like this: yourUsername@hiof.no
7) Enter your password twice
Video-instructions
Note: The language used in this video is Norwegian.