802.1X eduroam suppport via cable

[lkocman]

Hello team

I'd say most of Czech universities (especially on dormitories) are using 802.1X for the ethernet.
https://it.muni.cz/en/cit-ff/documents-and-guidelines/navody/connecting-to-the-eduroam-network-by-cable

This was the case on MFF UK as well, when I was in the dormitories.
I had my hard time with solaris back then, where I had to clone my mac and use device in the middle etc ...

Agama currently doesn't support that option. So the only-install might appear as non-usable on such venues.
Alternatively we can supply offline installer for that. I just wanted to state that the online only option would be a nogo on eduroam over ethernet.

Lubos