I am also trying a fresh install
I setup my waveshare hat as per https://www.waveshare.com/wiki/2-CH_CAN_HAT#Install_libraries
and i followed Linux version info and install instructions for the realdash setup
now i am getting “RNETLINK answers: Operation not permitted” when running. And as per setup i was able to do the ```
sudo ip link set can0 up type can bitrate 500000 restart-ms 100