@pierre-briec I'm happy it's solved, and happy i was right

In Xen Orchestra, you can change the priority in VM/advanced tab (hard drive vs DVD vs network boot) [image: 1637449330940-capture-d-%C3%A9cran-de-2021-11-21-00-01-43.png]

@indyj The problem appears to be in the 5.15 kernel as well but the workaround seems to fix the issue.

Hmm I have no idea but I think it might be because of more recent of Xen not supporting the OS itself

Could you set up netconsole with your guest. This is a kernel feature that allows you to send the console to a netcat/nc client over the network. You add the configuraton to the kernel command line. https://www.kernel.org/doc/html/latest/networking/netconsole.html

@danp said in This server is a different version to the master: 5.601 You are rigth, the problem was there. I didn´t found any package related to the schema version, but are rigth, so I've look into this. Here a problem like mine, and the key to resolv it. As my host0 was not updated, it was working with schema version 5.601. just a xe-tools-restart was enough to update the schema version to 5.602 and now they match. Thanks!

@olivierlambert Perfect, thanks again for your time!

@noship Hello. The secure boot feature is currently available as pre-release code. My personal experience is that it works well for my use case. Some others are reporting boot issues after installing the updates so it continues to evolve and is not yet released for production. Search the forum for UEFI and you will find the relevant threads for obtaining and installing secure boot support. Here's one: https://xcp-ng.org/docs/guides.html#guest-uefi-secure-boot

Hi, Can you be more specific? It's not clear to me

@olivierlambert Thank for for the link.. I obviously still a lot more reading to do:)

Yes, as it's the recommended tool to manage your VMs

@greg_e I just stick it in the host because i had empty x8 pci slot and i need the GPU right now all those GPU are actually used up. It works for my use which is very basic 2D autocad.

@heman I had to use this when I didn't follow directions on my XCP-NG lab system. Also a note to Freenas/Truenas users, make sure you "keep" a few old versions when you are upgrading things on your NAS, for exactly the same reasons. Yup, had to roll back on one of my production NAS this summer, nearly had a heart attack when stuff booted back up and none of the shares were accessible.

The only GPU I've tried to pass through has been an old Quadro 2000 card, and it seemed to work fine (though the old driver is a bit difficult on Win Server 2022). But the host also has a cheapo server GPU for XCP-NG to use for boot. I mention Quadro because those didn't have the crippled firmware blocking them from pass through like the Geforce cards have/had. Kind of a dirty trick from nVidia! Sorry I don't have any newer cards that I can test with, and I also only have Quadro cards here at all, "required" for some of our software. What I did find out is that if you pass through a GPU, you can not migrate that VM to another host, even if that other host has the same model GPU installed. And with that my GPU pass though testing is complete.

@janvanhumbeek how long did you run Memtest for? Can you run it for the same length of time to see if it locks up. Check for BIOS updates. From the Logs you have C States errors so looks like Power management is not working you may need a different Kernel.

configure proper gpo for: dcs clients You need to answer the question: from where dc gets the time?

Try to boot in safe mode then.

Weird. Feel free to give more feedback if it happens again

Confirming that @radioactiv's fix is all I needed too: yum update -y on my XCP-NG CLI did it.