How to monitor the boot process for headless Jetson Orin via USB?

I've connected my Ubuntu 22 host to [nru-220s-nvidia-jetson-orin](https://www.neousys-tech.com/en/product/product-lines/edge-ai-gpu-computing/nvidia-jetson/nru-220s-nvidia-jetson-orin-fanless-pc) via a USB-A to USB-C cable. I used [Minicom](https://help.ubuntu.com/community/Minicom) to connect to /dev/ttyACM0, and that works OK. I can also connect via SSH, so this USB connection does not bring anything new. I'd like to use Minicom (or other tool?) also to **monitor the Jetson boot process** - is this possible at all? While booting, there is no /dev/ttyACM0 yet, until the boot is finished, so nothing to connect to.