No, I dont think it’s something common.
I just thought loading drivers from additional ISO like Proxmox does could be useful because it would allow Incus to also use non-rebuild Windows ISOs.
But I understand this is not priority. That’s why I tried to find some workaround that would enable this while not needing to spend dev time on this.
Thanks for suggestion. To explain the problem. I am trying to use Windows install iso without included virtio drivers. I can mount additional virtio drivers iso to Incus instance but Windows dont see it. Likely because Incus uses virtio-scsi based block devices when configuring QEMU and vanilla Windows dont have virtio drivers.
Basically, I need to somehow add iso to QEMU instance that uses some device that vanilla Windows can see. Likely IDE.