Linux stuck at reboot, until key over serial pressed

Banana Pi Router design
1

Since an update of linux:

Rebooting linux it will stop at stopping [email protected]. Only after a key is pressed on the serial line, it will continue the shutdown.

Solution:

echo -e "[Service]\nKillSignal=SIGKILL" | sudo tee /etc/systemd/system/serial-getty\@.service.d/kill-serial-getty.conf
2

Not noticed this with recent kernel…i guess it is a userspace issue (arch use latest systemd?)

3

I believe so. I was a bit surprised that this now is an issue, but for anyone experiencing this, the solution is quite easy.