I just wanted to report back to the OP (from http://lime-technology.com/forum/index.php?topic=31257.0), and confirm that indeed proxmox 3.1 works with grumpybutfun's unRAID vhd file (from http://lime-technology.com/forum/index.php?topic=30715.0). I guess no reason why it wouldn't as proxmox uses KVM. In any case, I decided to try proxmox because of the overall smaller footprint compared to the opensuse's graphical installation, as well as better suited for a headless server install. As the under
Step almost the same, but I think best should be prepare unraid USB stick first then unplug it before prepare Proxmox.
Below are some detail
1. Unplug well prepare Unraid USB, best ( not must ) confirm it can boot in UEFI mode.
2. Install Proxmox to harddisk, make IOMMU enable.
3. Replug Unraid USB
4. Create VM
4a. Tweak ( Some step may not necessary )
- Click CD/DVD drive, remove it
- Click Hard Disk, detach and remove it