In case anyone else runs into this issue, I found the solution, or at least a workaround.
To test if this was a FOG issue or a XCP issue I spun up a Proxmox box, created a VM and got exactly the same issue when I booted from PXE.

Ultimately the issue turns out to be the iPXE boot kernel. In FOG you can select what version of the kernel use. Current version is 6.6.49 which does not work. Version 6.1.89 and earlier DO WORK. Not sure what changed but I'll leave that investigation to for someone else if they want to put in the time.

Thanks all for the advice and happy holidays!

Matt

@Greg_E

Thanks for the further information, much appreciated. This is an Enterprise image, but not LTSC.

"there is a procedure built in a forum post that's hard to find, it can be done but not a simple task"
Do you have any information I could use to try and located this post? I've tried searching 'secure boot' but was not able to find anything that seemed to be a solution, just questions.

I tired using "secureboot-certs install" as specified here: https://docs.xcp-ng.org/guides/guest-UEFI-Secure-Boot/. The certs installed successfully but I ran into the same problem on both the existing VM and a newly built one. Secure boot was turned on and the keys copied from the pool per the document.

Thank you for your help so far, any information you may be able to provide in finding the mysterious procedure post would be most appreciated. Come to think of it a lost mysterious document that holds the key to solving a problem sounds like the plot of a movie...

@DustinB
Thank you for the reply. Unfortunately the original machine from which the FOG image was captured is a physical machine, not a VM so direct OVA import is not possible here.

In this case what is failing to start is not the Windows installer, but the FOG deployment agent that uses Partclone to clone the stored image to the disk.

The FOG iPXE menu starts but then after selecting the image to deploy the process hangs almost immediately.

I'll create a non-windows image and try deploying that to see if there is any difference.

Thanks again!

My apologies if this is in the wrong group.
I'm trying to install a Windows 11 image captured using FOG Project to a XCP-NG VM over PXE. The iPXE agent boots without issue but as soon as I start the deployment process I get "EFI stub: Loaded initrd from LINUX_EFI_INITRD_MEDI_GUID device path" followed by "EFI stub: Measured initrd data into PCR 9"
The system hangs at this point and will proceed no further.
Any suggestions for anything I can try here?

VM: Win 11 Template, VTPM ON, Secure Boot OFF

XOA Version: 5.100.2
XCP-NG Version: 8.3.0
HW: HP Z840 Dual Xeon E5-2650 v3, 64GB ECC

@mattnj
In case anyone else runs into this issue, it was the oldest solution in the book. Reboot the server. Then the vm instances deleted instantly with the vm-destroy command.

In attempting to install XOA through the Web workflow, 3 instances of the XOA vm were created. I am unable to delete any of these instances. I have tried using the XOLite GUI and "xe vm-destroy uuid:<the uuid of the vm> without success. In both cases the operation appears to start but then hangs indefinitely without any sign of activity. CPU stays flat. Should this operation take a long time, or have I missed something?

Thanks!