Happy Monday all. Was playing with RC1 over the weekend. Before I start opening bug reports, I want to try to do a little more root cause analysis myself. So I have tried a couple different flavors of Windows. Admittedly mostly server variants (2022, 2025). I am looking at the Incus config that Tr…

Sounds like the issue described here: [image] Can't migrate VMs after update to 25.04 Apps and Virtualization Thats because of virtio drivers. You need to set disk io.bus to nvme which doesnt need them. It isnt yet exposed in Beta UI. Currently only in nightly, wait for R…

Thanks, unfortunately still can’t get it to work… I now have multiple ways to get the VirtIO ISO to attach which all work (the QEMU additional switch seems to be the best) but for whatever reason, Windows installer cannot detect the disk drive. What’s weirder is I can pop open DISKPART on command li…

To confirm, you tried changing io.bus to nvme and alter the boot.priority? The link I posted did not say to use virtio drivers.

Don’t use NVMe for the Windows installer ISO. It doesn’t work. [image] GUIDE: How to install/migrate Windows VM to Fangtooth/Incus using Virtio drivers Apps and Virtualization Here I present multiple ways how to get Windows working on new Incus based VMs in Fangtooth with …

Thanks for jumping in @Foxtrot314 - the persistence made me want to try again. I don’t know if something config wise had a minor misspelling or something else, but starting clean seemed to do the trick. Option 3 worked. Thank you both for the effort. Going to wipe it once more and try again to be c…

I’m on the release version of 25.04 no joy with windows VM using the nvme driver. Win11 installer shows no devices found. Has anyone got this working

just wait until later this month when 25.04.2 will release and bring back the old libvirt vm backend with some improvements (e.g. virtual tpm module for win11)

Still having trouble with Windows Server 2025 with 25.04.2. Can install it just fine but then it won’t boot/doesn’t seem to recognize the disk it installed to as bootable. Not sure what’s wrong.

25.04-RC1 - Cannot Get Windows To Work

Apps and Virtualization

neofusion March 17, 2025, 4:31pm 2

Sounds like the issue described here:

Topic		Replies	Views
Instance (Windows 10) inaccessible or running slow (25.04-RC.1) TrueNAS General SCALE	9	1257	March 28, 2025
Windows VM cannot boot/bad performance in Incus Apps and Virtualization	28	1109	April 18, 2025
[OUTDATED] GUIDE: How to install/migrate Windows VM to Fangtooth/Incus using Virtio drivers Apps and Virtualization SCALE , VM , Resource , Fangtooth , Incus	39	8514	January 3, 2026
Run Windows 7 VM without virtio/nvme support in Incus Apps and Virtualization	14	462	May 14, 2025
Fangtooth BETA (25.04): Big changes for VMs, don't get intentionality of experimental language Apps and Virtualization	37	2446	June 1, 2025

25.04-RC1 - Cannot Get Windows To Work

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