Redirect console to a serial port
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.
/sbin/agetty -L 115200 ttyS2 vt100
That should connect to /dev/ttyS2
at 115200
baud and emulate a vt100
terminal.
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Kousha
Biomedical Engineering Master student at UBC. I develop apps for both fun and large scale application for clients.
Updated on September 18, 2022Comments
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Kousha over 1 year
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? -
Paul Hutchinson about 3 yearsJust a note, you need to run this as root (sudo) for it to work.