[systemd-devel] vt220 default for serial console still relevant?

[Matwey V. Kornilov]

Dear all,

I've just read the discussion with a great interest. What I would like
to add is that there a people (like me) who use real world serial
consoles (not emulated as in qemu) for working with ARM single board
computers.

I usually use 'screen' terminal emulator to connect to /dev/ttyUSB0 or
so. `screen' itself is running in Konsole (which is TERM=xterm).
As far as I understand, 'screen' currently understands some set of vt2xx
commands (coming from rs232 console) and converts them to render in
xterm somehow. But I am not sure if it will still work correctly for
other kind of term.


11.07.2020 19:51, Daan De Meyer пишет:
> Hi,
> 
> I was playing around with mkosi's qemu support, more specifically adding
> the -nographic option to have the virtual machine output in my terminal
> instead of a separate window. After figuring out that I had to add
> console=ttyS0 to mkosi's kernel command line, I got the output from the vm
> in my terminal as expected. However, because systemd defaults to TERM=vt220
> for serial consoles, the output is not colorized. I searched around a bit
> and found that this is done for compatibility reasons. Will there ever be a
> point where we can switch the default to something that supports colors
> (like TERM=linux)?
> 
> I managed to get around the problem by overriding serial-getty at ttyS0 and
> setting Environment=TERM=linux explicitly but it's a bit of a pain and has
> to be added to every rootfs that wants to support colored output on its
> serial console.
> 
> Cheers,
> 
> Daan
> 
> 
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