Hi,
First of all, I’m aware that I need to read the wiki page and I did exactly that. I followed the instructions not from NVIDIA’s official documentation, but specifically from Seeed Studio’s own wiki, as you also linked. So, the steps you referred to have already been applied.
However, I’m not sure if my original question was fully understood. As I mentioned at the beginning, when using the method from your wiki, the system on the eMMC is cloned to the SD card. But that’s not what I want.
What I’m trying to do is boot from a custom system image, different from the one on the eMMC. I need to use Ubuntu 20.04, and since it works perfectly on the standard Jetson Nano Developer Kit, I assumed it would also work here.
If it’s not possible to boot any image other than your default Ubuntu 18-based system, it would be very helpful if you could clearly confirm this.
Thank you.