Recovery port serial on custom linux install?

On the default rootfs, the recovery port acts as a recovery serial port. How can I recreate this behavior on my own image which doesn’t use systemd? Currently, /dev/ doesn’t have ttyGS0 listed, which is what the default image uses as far as I can tell. Is there a kernel module that’s not loaded?

Any pointers towards getting a non systemd OS running on here (serial-wise or just in general) are much appreciated.

OS: Alpine Linux
Device: Jetson Nano

Maybe you can compare the lsmod on your case and devkit +sdkmanager case if you think there are some kernel modules which are not loaded.

I don’t suggest to use a non systemd OS because most of the usecase rely on it. And we won’t be able to list every of them out.

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