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    Strange issue with booting XCP-NG

    Scheduled Pinned Locked Moved Compute
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    • ? Offline
      A Former User @Danp
      last edited by A Former User

      @danp So I have another question, do you think that when I install XCP-NG in BIOS mode that this issue wont arise?

      Now I know what the problem might be @stormi could this be an UEFI issue rather than an XCP-NG issue?

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      • R Offline
        r1 XCP-ng Team @Danp
        last edited by

        @danp said in Strange issue with booting XCP-NG:

        https://github.com/xenserver/xen.pg/commit/4629bd92f3d3263da9d7fe304df422e54d56ee56

        This seems present for XCP-ng 8.0 and 8.2..

        ? 1 Reply Last reply Reply Quote 1
        • ? Offline
          A Former User @r1
          last edited by

          @r1 Its still strange though that this problem still persists. As I think there are more people using the Quadro P400.. (Correct me if I'm wrong of course).

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          • ? Offline
            A Former User
            last edited by

            Do you guys think that this has to do with UEFI? Otherwise I will have to reinstall XCP-NG in BIOS mode instead of UEFI mode...

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            • R Offline
              r1 XCP-ng Team @Guest
              last edited by

              @appollonius I don't think it is driver issue (POST boot).. We may know more only from serial output.

              Are you able to boot as-is in BIOS mode without reinstall?

              ? 2 Replies Last reply Reply Quote 0
              • ? Offline
                A Former User @r1
                last edited by

                @r1 I could try that, will update when that has been done...

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                • ? Offline
                  A Former User @r1
                  last edited by

                  @r1 How do I boot in BIOS mode without a reinstall? Can that even be done, because I remember that when I installed xcp-ng I had to choose between BIOS or UEFI am I correct? (Could be something else though) otherwise if not I can give that a try.

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                  • R Offline
                    r1 XCP-ng Team @Guest
                    last edited by

                    @appollonius I think it will depend on hardware settings. See if you have option to change the mode in motherboard settings?

                    I don't have physical hardware access to validate this as I mostly use nested virtualization but XCP-ng /boot has required files support both for UEFI and BIOS mode.

                    Maybe @stormi can confirm.

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                    • ? Offline
                      A Former User @r1
                      last edited by

                      @r1 If this could be confirmed I would be happy to test it, otherwise I'll have to do it when I have a new system.. Because I dont want to mess up the current one just yet 🙂

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                      • R Offline
                        r1 XCP-ng Team @Guest
                        last edited by

                        @appollonius I don't think there is any harm. You will be either be able to boot or not. You can always switch back to old settings.

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                        • ? Offline
                          A Former User @r1
                          last edited by

                          @r1 Alright then I will give it a try somewhere today 🙂

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                          • stormiS Offline
                            stormi Vates 🪐 XCP-ng Team
                            last edited by

                            Unless I'm mistaken, XCP-ng installed in UEFI mode won't boot in bios mode. There won't be anything written in the MBR.

                            ? 1 Reply Last reply Reply Quote 0
                            • ? Offline
                              A Former User @stormi
                              last edited by

                              @stormi Ahh... So I would have to reinstall XCP-NG completely to be able to boot in BIOS?

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                              • stormiS Offline
                                stormi Vates 🪐 XCP-ng Team @Guest
                                last edited by

                                @appollonius yes

                                ? 1 Reply Last reply Reply Quote 0
                                • ? Offline
                                  A Former User @stormi
                                  last edited by

                                  @stormi Damn... And that all to 'test' if the GPU is working in BIOS mode.

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                                  • ? Offline
                                    A Former User
                                    last edited by

                                    Maybe I asked the wrong question here, but is the NVIDIA QUADRO P400 even supported? Maybe that could be an issue as well? If not I think I'll have to grab something like a Radeon WX2100..

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                                    • stormiS Offline
                                      stormi Vates 🪐 XCP-ng Team
                                      last edited by

                                      It's not supported for vGPUs https://xcp-ng.org/docs/compute.html#vgpu but it should not prevent other uses of XCP-ng in theory.

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                                      • ? Offline
                                        A Former User @stormi
                                        last edited by A Former User

                                        @stormi Ahh thanks for the webpage, though I still think BIOS mode wont fix this issue I believe.. So I will capture the serial output, to see what happens.

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                                        • stormiS Offline
                                          stormi Vates 🪐 XCP-ng Team
                                          last edited by stormi

                                          As I said (or tried to say), vGPU support has nothing to do with the ability to display the host console on screen.

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                                          • stormiS Offline
                                            stormi Vates 🪐 XCP-ng Team
                                            last edited by

                                            So BIOS mode might help, but there's no guarantee.

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