You can configure network interfaces (manually or using DHCP) in "text" mode. What you call "proper text mode" is referred to as "cmdline" mode. This mode, als

You can configure network interfaces (manually or using DHCP) in "text" mode. What you call "proper text mode" is referred to as "cmdline" mode. This mode, also known as "noninteractive" mode, is intended for 100% fully automated / "hands off" installations where everything has already has been defined and/or configured ahead of time. If you need or want to configure some configuration option or network interface or whatever manually at install-time, well, you'll want to pick either "graphical" or "text" instead. (You'll notice that the "luxuries" of text mode -- tmux, ncurses, spacing and alignment of text -- are missing in cmdline mode. If you are able to use cmdline mode, it is only because your installation process has been totally and completely automated, tested extensively, and works flawlessly. If all of that is true, well, you almost certainly aren't staring at the console watching the installation as it takes place and, if no one is watching anyways, why bother spending the effort to make "cmdline" mode anything more than the minimum required -- especially if no one is going to even notice!?)