I have a serial port /dev/ttyS2
that is connected to a supervisor. Normally, I use this line to send commands back and forth between CPU and supervisor.
However, under some settings, I want to just redirect the entire console to this port.
I can achieve this via a reboot and updating the uBoot kernel variable to direct console=ttyS2,115200
. But is there a way to achieve this without a reboot?
Best Answer
You could launch getty once you've booted to get a serial connection to your system. Note that this will not give you the default outputs typically seen with your console (Kernel Panics and other verbosities typically seen in console but not in normal terminals). But if you are just looking to get a login via serial after boot this should work.
That should connect to
/dev/ttyS2
at115200
baud and emulate avt100
terminal.