IF I update to the latest batch of updates released recently, I suppose I will lose the changes made in that repo that you provided. ?

I went digging and three threads turned up people who already have this hardware. @yeopil21 in https://xcp-ng.org/forum/topic/11799 had an LPe37102-D on a Dell R770 that never showed up at all, @jinju0504 in https://xcp-ng.org/forum/topic/11946 ended up on the -alt package on an R670, and @lukas in https://xcp-ng.org/forum/topic/8847 was running an LPe31002-M6-D with NVMe-oF back on 8.3 beta2. That last one is the older generation, so I'd guess it's the side where you most want to hear nothing regressed. Tagging them in case the cards are still on their benches.

@seanmcg182 's post might be the answer to the original question, two years late. Your lspci -s 0000:05:00.0 -v at post 8 shows (rev ff) and !!! Unknown header type 7f, which is the same pair he had, and in his case it came from bifurcating the wrong PCIe port in the BIOS rather than from anything XCP-ng was doing. He says the unknown header is what then produced the device or resource busy error on VM start, which is the error you opened with. I don't know whether your board exposes bifurcation the way his X10DRH-CT does, so it might not transfer at all. @kuznetcoff777 if that machine is still around, it'd be worth a look either way.

@yllar said: @yannsionneau Hi, any news on the new iso? Hello @yllar In case you missed it, the ISO was released a few days ago: https://xcp-ng.org/blog/2026/08/14/xcp-ng-8-3-lts-refreshed-installation-isos/

Very cool, thanks for the feedback @maximsachs !

@poddingue, that is true, my first post here. I'll try to play with these BIOS settings again. and keep you posted. Cheers

Drivers are actually in @Team-Hypervisor-Kernel scope nowadays

@yannsionneau , may this link helps if you not anyway know it https://medium.com/@timemaster5/getting-amd-phoenix-igpu-passthrough-working-on-xen-xcp-ng-8856593f9c0d I will give it a try this weekend

@MajorP93 said: What you are describing must be a storage live migration then (XenMotion). That should work across pools, yes. I stand corrected because I did not factor in this variant in my initial answer. Yes, that's it - sorry - I should have been more explicit, even if 'lumbers along' wasn't a hint //EDIT: also there is no such thing as non-pool hosts. Even a single host setup has it's own pool. Pedantic, but true I technically meant 'not hosts in the source pool' I guess.

Your write-up is the kind of thing that saves the next person a weekend. One thing worth knowing before you commit to the whole-controller route. The passthrough page has a "Passing through Keyboards and Mice" section further down, and it says XCP-ng ships /etc/xensource/usb-policy.conf with DENY rules for mice and keyboards by default. You edit those to ALLOW, then refresh with /opt/xensource/libexec/usb_scan.py -d followed by xe pusb-scan host-uuid=<host_uuid>. It's at https://docs.xcp-ng.org/compute/ under USB Passthrough. I have no idea whether that covers your USB-to-serial adapter, which is a different device class, and passing the whole controller may still be the cleaner setup for two discrete workstations anyway. Might be worth a mention to @Team-Hypervisor-Kernel on the display question, because that one still puzzles me.

@poddingue Hello, sorry for the delayed response. We had some issues with the Supermicro IPMI and were waiting for a resolution. Here are the two log files: dmesg_xcp-ng-8320250606-aacraid-legacy.log dmesg_xcp-ng-8320250606-aacraid-uefi.log The alternative kernel did not work with your xcp-ng-8.3.0-20250606-aacraid.iso. I am also providing the log after installing the standard xcp-ng-8.3.0-20250606.iso: The files can be found at https://drive.google.com/drive/folders/1H-0FEruGK26oclD2WInDSOBJhVW2k8Xz?usp=sharing, as I wasn't able to upload the log files directly to the forum. I am also ready to participate in any further testing of new images, up to and including XCP-ng 9.0.

Good to hear, thanks a lot for your feedback.

That leftover NIC is probably a stale PIF that XAPI is still holding, even though the card is physically gone, and the Refresh button re-scans rather than removing it. The docs have proper "remove a physical NIC" steps that end in forgetting the old PIF with xe pif-forget: https://docs.xcp-ng.org/networking/#remove-a-physical-nic. For the GPU side, the PCI passthrough flow (hiding the device from dom0, then assigning it) is here: https://docs.xcp-ng.org/compute#detaching-a-pci-device. If the GPU still won't show up as assignable once the stale PIF is gone, it might be worth a mention to @Team-Hypervisor-Kernel.

@poddingue Thank you kindly! Honestly, whatever organizational structure you think is best is fine by me.

Thank you all (@olivierlambert , @teddyastie ) for your valuable responses

@tjkreidl I found that some Intel PRO GPU card have SRV-IO without any additional license, but this functionality is supported in Linux kernel 6.12 and up. I hope in new XCP-NG will have 6.12+ and support GPU sharing.

@taghjichte From my testing you would need to passthought a device for audio. If need for professional audio work then yes a pci passthough would be the perferred option. With that said. @dinhngtu As for sound I have never looked much into it but the only vm I heard make sound is from Fedora even while booted from install iso. Kubuntu or windows with xen drivers installed no audio. (find for me at the moment) While audio seems to work in Fedora from iso it seems to be limited to left channel. Local system is connected to 5.1 sound.

Nice!! Thanks for the feedback @mattrc , it's really cool to see that you can fully enjoy your machine

From what I understand, the OS-to-iDRAC pass-through is a direct USB link between the host and the BMC, designed for the hypervisor host itself to talk to the iDRAC, not something that would naturally bridge through Xen's networking layer into a VM. That might be why the PIF shows up in XCP-ng but the VM still can't reach 169.254.0.1; the bare metal case works because the OS sits directly on the hardware with no virtualisation layer in between. If you need the VM to have direct BMC access, USB passthrough might be worth exploring; XCP-ng does support passing USB devices through to VMs (https://docs.xcp-ng.org/compute#usb-passthrough), though I'm not certain the iDRAC virtual USB NIC would show up as a passthrough-able device. Might be worth a mention to @Team-Hypervisor-Kernel to find out; others here will know more than me.

Hello @codemercenary In theory Xen is NUMA aware (See https://wiki.xenproject.org/wiki/Xen_on_NUMA_Machines) so you would leave memory interleaving option of the BIOS off so that Xen does what it thinks is necessary. But these kinds of settings are very very workload sensitive and in fact it's usually a good idea to just test what works best for you. Regards, Yann