Sorry it’s me again, the NanoPi R6S has been setup now, but the 2.5G ethernet interface has no driver so I pulled the one from Realtek.
I found that there is no kernel headers package for the version of kernel 5.10.110, so I tried to install a kernel which has headers together, but I found that it doesn’t boot into the new kernel I installed (it sticks with the vanilla kernel coming with initial dietpi install), am I missing some steps here?