marioxcc said: "Nobody told you and the error message is written that way so
because it is obvious."
"Everyone knows" means, "everyone who's a member of the club knows."
Way back in the days of 8+3 filenames, disk space was at a premium and so
even text files had to be kept short. Those days are gone forever, and yet
the present operating systems are full of shorthand and slang terms that
folks new to the game have an awful time learning. My dear mother was born in
what was Austria-Hungary, and in spite of living in the USA for more than
twenty years before having me, she never learned the American idiom and was
forever repeating off-color remarks (like Meryl Streep in "Sophie's Choice.)
It would be a simple matter to place a text file into a popup that could
appear when hovering the cursor over that little box in the Trisquel
installation menu. I still don't know (and hesitate to guess) what might
happen if I were to click on the accompanying minus (_-_) sign ...
I've been struggling with the GNU/linux operating system for more than twenty
years myself.