Provisioning fails with QEMU 8.1

[urisimchoni]

With upgrade of my system to Fedora 39 and qemu 8.1, provisioning of new vagrant w2k22 boxes using the windows-vagrant scripts stopped working. I've traced it to this qemu issue - https://gitlab.com/qemu-project/qemu/-/issues/2008

The powershell command "Get-CimInstance -Class Win32_ComputerSystemProduct" returns an empty string because of this issue, and this causes scripts to fail.

As a workaround, I change machine type on the windows-2022.pkr.hcl from "q35" to "q35,smbios-entry-point-type=32". I don't know how fast this will be fixed in qemu and backported to Linux distros. If it is not fixed, consider making this a permanent change.

[rgl]

Good to known there is a workaround for the recent Fedora.

The only QEMU 8.1 that I've tested with was the QEMU flavor that ships with Proxmox 8.1.3 (the pve-qemu-kvm 8.1.2-6 package), and it works fine. I can install the VM using packer, launch a VM (using https://github.com/rgl/terraform-proxmox-windows-example), and inside the launched VM:

PS C:\Users\vagrant> Get-CimInstance -Class Win32_ComputerSystemProduct

IdentifyingNumber :
Name              : Standard PC (Q35 + ICH9, 2009)
Vendor            : QEMU
Version           : pc-q35-8.1
Caption           : Computer System Product

[urisimchoni]

It's conceivable that Proxmox have patched their version of qemu to fix this, given that they reported the qemu issue. I've opened a fedora bug as well - https://bugzilla.redhat.com/show_bug.cgi?id=2255791