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    Migrating from XCP-ng Windows guest tools to Citrix

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    • B Offline
      bberndt @dinhngtu
      last edited by

      @dinhngtu We have a Domain Policy that is intended to update and reboot on a set schedule. I didn't see more drivers in Optional Updates. I don't see Optional Drivers at all, as a section in the Windows Updates panel, maybe because its done in the Policy. I -have- seen this in Windows 10/11.

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      • D Offline
        dinhngtu Vates 🪐 XCP-ng Team @bberndt
        last edited by

        @bberndt said in Migrating from XCP-ng Windows guest tools to Citrix:

        XenServer PV Bus 9.19.105 (old)

        Could you confirm which driver/device this was? It didn't look right.
        Also, are you pulling updates through WSUS or something similar? Normally Windows should be able to update all the PV drivers on its own.

        Otherwise, in a fresh Windows installation the drivers gotten from Windows Update are as following:

        • Bus 9.1.11.115
        • Interface 9.1.12.94
        • Network Class 9.1.13.107
        • Network Device 9.1.7.65 (old, but normal; there's been no updates to this driver since)
        • Storage 9.1.9.82

        Rolling back to older drivers then running Windows Update got me the newest drivers as expected.

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        • B Offline
          bberndt @dinhngtu
          last edited by bberndt

          @dinhngtu said in Migrating from XCP-ng Windows guest tools to Citrix:

          XenServer PV Bus 9.19.105

          Notice the other XenServer PV Bus (C000), this one is the current version compared to Citrix release page. Another test server I set up, and installed the latest Citrix installer 9.4.1, and it has a Xenserver PV Bus (002), and one (C000). We are not using WSUS at all. This is on Server 2019.
          Screenshot 2025-07-10 152409.png

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          • D Offline
            dinhngtu Vates 🪐 XCP-ng Team @bberndt
            last edited by

            @bberndt It's normal to have 2 PV Bus devices if you have the "driver via Windows Update" VM option enabled, but I don't expect them to have different driver versions. Is the C000 device the active one? (you can see with View - Devices by connection) Maybe the non-C000 device didn't get the update due to it not having an update-tagged device ID.

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            • B Offline
              bberndt @dinhngtu
              last edited by

              @dinhngtu
              Tried to get everyone in the same screen shot here.

              the 'older' one has the subtree under it,.
              Screenshot 2025-07-10 153738.png

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              • D Offline
                dinhngtu Vates 🪐 XCP-ng Team @bberndt
                last edited by

                @bberndt That's really odd. What does Update Driver say? I'll try to ask the XS driver maintainer about it.

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                • B Offline
                  bberndt @dinhngtu
                  last edited by

                  @dinhngtu
                  says none found, and asks to go to windows update, which says im up to date. Further up in this thread, I tried to recall my exact procedure. I suppose I can't say the group policy isn't doing something, but it just setting the date and time (wednesdays) to run once a week, and the deadline is to reboot Saturdays, 3 days later.

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                  • D Offline
                    dinhngtu Vates 🪐 XCP-ng Team @bberndt
                    last edited by dinhngtu

                    @bberndt Okay, I managed to reproduce your situation. I think it's because the "driver via Windows Update" option was enabled after installing the XS drivers, which caused the drivers to lock onto the non-C000 device and prevent updates from coming in.

                    Normally, XenClean should be able to fix the situation. But if you want to fix things manually, or if things still don't work (C000 is still not active), here's a procedure that should fix the problem:

                    1. Take a snapshot/backup/etc.
                    2. Keep a note of static IP addresses (if you have any; there's a chance those will be lost). You can also use our script here: https://github.com/xcp-ng/win-pv-drivers/blob/xcp-ng-9.1/XenDriverUtils/Copy-XenVifSettings.ps1
                    3. Reboot in safe mode and disable the non-C000 device.
                    4. Reboot back to normal mode; it'll ask you to reboot a few more times.
                    5. The C000 device should now be active and you should be able to get driver updates again.
                    6. (Optional) You can now enable and manually update the non-C000 device (Browse my computer - Let me pick).
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                    • D Offline
                      dinhngtu Vates 🪐 XCP-ng Team
                      last edited by dinhngtu

                      Updated with working procedure. (tl;dr XenClean should fix this)

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                      • B Offline
                        bberndt @dinhngtu
                        last edited by

                        I did it that way so as to get the old Citrix driver first, and then let it update and watch it reboot. That was my logic anyway.

                        @dinhngtu said in Migrating from XCP-ng Windows guest tools to Citrix:

                        @bberndt Okay, I managed to reproduce your situation. I think it's because the "driver via Windows Update" option was enabled after installing the XS drivers, which caused the drivers to lock onto the non-C000 device and prevent updates from coming in.

                        Normally, XenClean should be able to fix the situation. But if you want to fix things manually, or if things still don't work (C000 is still not active), here's a procedure that should fix the problem:

                        1. Take a snapshot/backup/etc.
                        2. Keep a note of static IP addresses (if you have any; there's a chance those will be lost). You can also use our script here: https://github.com/xcp-ng/win-pv-drivers/blob/xcp-ng-9.1/XenDriverUtils/Copy-XenVifSettings.ps1
                        3. Reboot in safe mode and disable the non-C000 device.
                        4. Reboot back to normal mode; it'll ask you to reboot a few more times.
                        5. The C000 device should now be active and you should be able to get driver updates again.
                        6. (Optional) You can now enable and manually update the non-C000 device (Browse my computer - Let me pick).
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