Guide: bind devices to vfio-pci for easy passthrough to VMs
TL;DR - skip to the second post if you just want to know how to convert from legacy PCI stubbing via Syslinux to the new point and click method in Unraid 6.9
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At times you will want to "hide" devices from Unraid so that they can be passed through to a VM.
Unraid Prior to 6.7
In the past (pre Unraid 6.7) we would stub the device by adding a Vendor:Device code to the vfio-pci.ids parameter in Syslinux, something like this:
append vfio-pci.ids=8086:1533
This worked
I'm assuming you are on 6.9.0-rc2? If you hover over the disabled checkbox you should get a tooltip saying "In use by Unraid". Go to Settings -> Network Settings and remove the nic from any bonds (note: you will need to stop the array to make any changes to the network setup). Once it is no longer in use by Unraid, the checkbox will be active. If you get stuck, please upload your diagnostics (from Tools -> Diagnostics)
