Use tmux instead of GNU screen by default in ttys?

[mika]

We are starting GNU screen sessions on some TTYs after booting finished.
I'm fine with GNU screen, though tmux is a more modern tool which also provides some features screen doesn't provide.
Assuming that we manage to get tmux as proper screen replacement (similar status line + keybindings, comparable memory usage,...), do we want to switch to use tmux on our TTYs? Opinions? /cc @jkirk @formorer @zeha?

[zeha]

👍🏻

Q because I have no idea if that works / is needed: tmux on serial consoles?

[mika]

Good point, tmux doesn't support serial consoles like screen does, though AFAICT you'd invoke it separately anyway (like screen /dev/ttyUSB0 115200), so IIRC it should not matter for the ttys where we're invoking it. Please correct me if I'm wrong. :)

[zeha]

I was worried about the other way round: does tmux work on a serial console? Do we care?

[mika]

Ahhhh! :) AFAICS we only have agetty listening on serial-getty@.service, so that shouldn't be relevant.

[jkirk]

JFTR, tmux does (and will not) support serial console (tmux/tmux#1862).

The question is, do we need tmux to work on a serial console?

But yes, I also think we should switch to tmux.