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    The emulator required to run this VM failed to start..?

    Scheduled Pinned Locked Moved Xen Orchestra
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    • TheNorthernLightT Offline
      TheNorthernLight
      last edited by

      Hello,

      So we tried to do a rolling update on our servers, and for some reason, this seemed to have failed.

      I've manually completed the updates, but now I'm trying to re-start several VMs, and I'm running into the same problem. I get an error:

      "An emulator required to run this VM failed to start"

      Anybody know how to resolve this?

      1 Reply Last reply Reply Quote 0
      • DanpD Offline
        Danp Pro Support Team
        last edited by

        Restart the toolstack on each server.

        TheNorthernLightT J 3 Replies Last reply Reply Quote 4
        • TheNorthernLightT Offline
          TheNorthernLight @Danp
          last edited by

          Danp Yeah, that didn't work. I restarted the tool stack on all of the pool's hosts, and no go still.

          TheNorthernLightT 1 Reply Last reply Reply Quote 0
          • TheNorthernLightT Offline
            TheNorthernLight @TheNorthernLight
            last edited by

            TheNorthernLight I'm also getting that the VM failed to pass secure boot verification. I've never had that problem and have no idea how to resolve it.

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            • TheNorthernLightT Offline
              TheNorthernLight @Danp
              last edited by

              Danp Turns out, I was missing the UEFI Secure boot certificates on my hosts. Odd how this never came up as an issue prior, but now it seems "required". At least its an easy fix:

              https://xcp-ng.org/docs/guides.html#guest-uefi-secure-boot

              1 Reply Last reply Reply Quote 1
              • stormiS Online
                stormi Vates 🪐 XCP-ng Team
                last edited by

                Previously, enabling Secure Boot on a VM would do nothing at all. Starting with update 8.2.1, we now support it and as you found out you need to bootstrap it on the pool.

                TheNorthernLightT 1 Reply Last reply Reply Quote 0
                • TheNorthernLightT Offline
                  TheNorthernLight @stormi
                  last edited by

                  stormi So from what I understand, at the moment the XCP-NG client drivers cannot be used for secure boot, and we must use the Citrix drivers.

                  We have ALL of our VMs using the XCP-NG Client drivers. How do we successfully switch to the Citrix drivers?

                  I tried on a test VM to uninstall the XCP-NG client drivers, reboot and enable the Citrix drivers install, but the OS refuses to boot after removing the XCP-NG Client drivers. How do I "install" the Citrix drivers without having the xcp-ng client driver conflict?

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

                    I think the steps would be similar to what we do in the opposite situation: https://xcp-ng.org/docs/guests.html#upgrade-from-citrix-xenserver-client-tools

                    1 Reply Last reply Reply Quote 1
                    • J Offline
                      jrubenc @Danp
                      last edited by

                      Danp said in The emulator required to run this VM failed to start..?:

                      Restart the toolstack on each server.

                      This worked for me.

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                      • J jrubenc referenced this topic on
                      • reflexR Offline
                        reflex
                        last edited by reflex

                        Please check this: https://xcp-ng.org/forum/post/78137

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                        • J Offline
                          jjanvier
                          last edited by

                          Check your disk space on the server. in my case no diskspace left...

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