use gpu only for VMs but not for unraid

[Kriscen]

Hi,

 

I read several things about this but didn't find an answer that really fit my needs.

Anyhow.

What I want to do is getting unraid installed and then install to other VMs. One will be Win10 and one will be MacOS. 
I only have 2 GPUs so is it possible to pass the 1080 through to win10 and thew other one to Mac os and running Unraid without a GPU at all?

I'm currently using a Ryzen 2600X so there is no internal GPU!

 

Please make comments below and I will incorporate changes in to this post.

[gray squirrel]

Yes this is completely possible.

 

you will need to provide a vibios if your using it as a primary GPU.

 

I recommend dumping your own vibios using this method:

 

 

but there is a newer method (this didn’t work for me)

 

so what I would do.

 

put your 1080 in the second slot, ensure unraid grabs the other GPU.

 

dump your vbios (for the 1080)

 

build a Window 10 VM using VNC

 

Old guide but works

 

 

check everything works as required

 

now add your GPU without vbios and reboot VM to check passthough works with the 1080 as the secondary.

 

now add you vbios to check that works.

 

move it to your primary slot (note your VFIO config might change) rebuild the VM template (point at old vdisk) from scratch and start your VM.

Edited August 13, 2021 by gray squirrel

[Kriscen]

Thank you so much