So first, it's not an XO issue, which helps to diagnose it. Then, it might be a subtle XCP-ng bug indeed.

@dinhngtu I'll try this on the next VM that exhibits the behavior as to not interrupt the end users on the completed VMs.

Indeed, and it's clearly stated at https://docs.xen-orchestra.com/community

@Andrew Hey budd, thanks for the pointer. That ISO worked, thanks.

@sid It seems I have to get my hands dirty and take a deeper look into Terraform / OpenTofu. I am not shure how well the other folks at work partially will have fun working with commandline versus the easy to use XO web GUI. Tailoring down the CloudInit files used is not really the basic idea behind this. I was rather going the oposite way and install / configure the stuff we usually bake into our templates on the fly while generating the VM via CloudInit. Thanks a lot for all the responses !

@florent turning off CBT removed the "fall back" message but my Delta backup is still doing full backups.

@Danp I also had to cut alot of the bottom of that log just to post it.

@planedrop yes

I had to disable Purge snapshot data when using CBT. Backups are not longer defaulting to full backups.

@dinhngtu Thanks. I did verify that it does not have the revoked version on any of the hosts. I've also verified that this is only occurring with Windows 2025. I can V2V Windows 2022 or any Linux distribution that we've tried, without secure boot issues. Also, a fresh installation of Windows 2025 doesn't have the issue. I've opened support ticket number 7747017 for this issue. Hopefully someone can get it figured out. Thanks. Allen B.

@cmanos No problem, glad I could helped. As Olivier also pointed above, it's not an issue anymore when using QCOW2 which is currently in beta, so hopefully it's only a short workaround

What GPU do you have? I thought I read something about NVidia's newer stuff having vGPU without the expensive licensing and hardware. But it's possible I'm just conflating that with the increase in concurrent NVENC encodes. On the bright side, you can always get a cheap GPU and just do passthrough with it. I do that for my Jellyfin server with a 2060, it's very easy to do in XCP-ng now and works super reliably.

@olivierlambert Ok, thanks. Yes I'm eagerly awaiting XCP-ng 9 for testing.

@lsouai-vates those look great! @Pilow hey I’m just happy that @olivierlambert officially 100% promised and fully committed to a December 2025 initial release of XO6 on the monthly blog

I'm afraid there aren't any bios updates...the device is a chinese mini pc from aliexpress. I've spoken with the seller and he told there aren't any, at least not official ones. I don't think it's a bios issue, but something regarding the passthrough on the newer devices . maybe the kernel from xcp is too old, although it's heavily patched.

@MajorP93 Thank you i appreciate. im not in a hurry , take your time

This approach isn’t entirely foolproof since I can’t use a wildcard, and I don’t know how many disks will be attached to the VM. For now, it will never exceed two disks, so I can explicitly include both in the ignore_changes statement. That’s an acceptable solution for us. Thanks for your support.

Yes, they are created either: on demand for users when we need in XO 6 Now, XO 6 is becoming the main driver for new endpoint as the UI is providing more and more features.

Hey, sorry guys. Didn't have time to advance on that. I promise will put something to test during november.

There's some nice progress on @psafont's work regarding improved revert. I'm confident we'll get there