I want to install Lubuntu on my Raspi 4 and followed the instructions: https://ubuntu.com/download/raspberry-pi, steps 1-4.
At the end I can however not continue to do the lubuntu-desktop installation because wifi is not yet configured and I don't have a wired internet (am always using my mobile's wifi). Likewise I can't install any other package but have to work with the configuration that comes with the server distro.
How can I tell Ubuntu Server which wifi connection details to use?
Thank you very much!