so... this new vfio bind method does not work. You can see my issues, and others in this post. So I am back to stage 1 with my unraid upgrade.  Maybe 6.8.1 will be better...... Have to give the users a week of stable operation before I try that again. On the upside, I have installed my PCIE-X1 graphics card, freeing up the High Speed NVME port for future upgrade.