How to disable serial console port at run time

Autonomous Machines Jetson & Embedded Systems Jetson Nano
#1

Hello @ShaneCCC ,

I have to do following, can you please suggest,

  1. serial console port disabling at run time.
  2. Run ifconfig command automatically before disabling serial console port.

Thanks,
Mukesh.

#2

As I know can’t disable it at run time.
What I know is follow below.

https://docs.nvidia.com/jetson/archives/l4t-archived/l4t-325/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/kernel_boot_time.html#wwpID0E0YB0HA

#3

Can you suggest is there any service responsible for console log, if so the which service?

Thanks,
Mukesh

#5

Hi,

Could you try whether this would work?

sudo systemctl disable nvgetty.service

#6

Hello,

This service is already inactive in my Jetson board and still serial console log is printing.

Please find response of command below,

root@cimcon:/boot/extlinux# systemctl status nvgetty.service
â nvgetty.service - UART on ttyTHS0
Loaded: loaded (/etc/systemd/system/nvgetty.service; enabled; vendor preset: enabled)
Active: inactive (dead) since Thu 2022-03-31 10:58:48 UTC; 22h ago
Process: 6115 ExecStart=/etc/systemd/nvgetty.sh (code=exited, status=0/SUCCESS)
Main PID: 6115 (code=exited, status=0/SUCCESS)

Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.

Thanks,
Mukesh Prajapati

#7

Then there is no method to change in runtime.

#8

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