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    "Management agent not detected" and "No Xen tools detected"

    Scheduled Pinned Locked Moved Xen Orchestra
    guest toolswindowswindows serverdrivers
    14 Posts 7 Posters 2.6k Views 4 Watching
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    • DanpD Offline
      Danp Pro Support Team @DustinB
      last edited by

      @DustinB Those are the correct tools. As I know that you are already aware 😉 , Windows can be temperamental at times. I generally take a snapshot before ever attempting to install them so that I can restore and try again if the first attempt fails.

      You may need to remove them on the problematic VMs and try again.

      MK.ultraM 1 Reply Last reply Reply Quote 0
      • MK.ultraM Offline
        MK.ultra @Danp
        last edited by

        I'm having a similar issue. I recently upgraded all my clients' Xen Server tools to 9.4.1 to remediate the xeniface vulnerability. Even after multiple reboots, I have 2 hosts that refuse to acknowledge that they have been updated:

        d8d11aa9-0aff-4cc6-b785-327a26c83de0-image.png

        D 1 Reply Last reply Reply Quote 0
        • olivierlambertO Offline
          olivierlambert Vates 🪐 Co-Founder CEO
          last edited by

          You mean 2x VMs?

          MK.ultraM 1 Reply Last reply Reply Quote 0
          • MK.ultraM Offline
            MK.ultra @olivierlambert
            last edited by

            @olivierlambert said in "Management agent not detected" and "No Xen tools detected":

            You mean 2x VMs?

            Sorry yes, I meant 2 VMs.

            1 Reply Last reply Reply Quote 0
            • D Offline
              dinhngtu Vates 🪐 XCP-ng Team @MK.ultra
              last edited by

              @MK.ultra Do you have the "Manage Citrix PV drivers via Windows Update" option enabled on these VMs? If so they'll need to be updated via Windows Update. If not, try XenClean to remove all the existing drivers and install clean 9.4.1 ones.

              MK.ultraM 1 Reply Last reply Reply Quote 2
              • TheNorthernLightT Offline
                TheNorthernLight @DustinB
                last edited by

                @DustinB Are any of your windows servers, Server 2012 R2 ?

                We are having a problem where switching to these Xenserver drivers fail to load part of the Xenserver tools (you'll see failed drivers in your device manager).

                We might have to live with the old drivers until this is fixed, and hope we dont get compromised.

                D 1 Reply Last reply Reply Quote 0
                • D Offline
                  dinhngtu Vates 🪐 XCP-ng Team @TheNorthernLight
                  last edited by

                  @TheNorthernLight New drivers are not compatible with 2012R2 any more (MS killed support for building drivers on 2012R2 some time ago). You can try our legacy mitigation script.

                  TheNorthernLightT 1 Reply Last reply Reply Quote 0
                  • MK.ultraM Offline
                    MK.ultra @dinhngtu
                    last edited by MK.ultra

                    @dinhngtu said in "Management agent not detected" and "No Xen tools detected":

                    @MK.ultra Do you have the "Manage Citrix PV drivers via Windows Update" option enabled on these VMs? If so they'll need to be updated via Windows Update. If not, try XenClean to remove all the existing drivers and install clean 9.4.1 ones.

                    Using XenClean and then reinstalling 9.4.1 directly cleaned up the vulnerability alerts. The VM's had been upgraded from 9.4 to 9.4.1
                    Thanks!

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                    • TheNorthernLightT Offline
                      TheNorthernLight @dinhngtu
                      last edited by

                      @dinhngtu Thank you!

                      In the meantime, should we just continue to use the XCPNG drivers that were working previously, and then run the mitigation script?

                      D 1 Reply Last reply Reply Quote 0
                      • D Offline
                        dinhngtu Vates 🪐 XCP-ng Team @TheNorthernLight
                        last edited by dinhngtu

                        @TheNorthernLight Yes. Be sure to use the legacy mitigation script linked here (not the ones linked elsewhere) as it's the only one that works on Server 2012 R2. If you're using XO 5.107.2 or later, you can also set the HIDE_XSA468 tag to hide the alert.

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

                          @dinhngtu Thank you very much for this. Luckily, these last few 2012 OS's will be mothballed at the end of August, but... sometimes schedules and security don't align. 😄

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