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    Windows 2025 Standard 24H2.11 (iso release of sept 25) crash on reboot with "INACCESSIBLE BOOT DEVICE 0x7B" in XCP 8.2.1 and XCP 8.3

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

      Hi all, here's a pre-build of the fix for anyone who wants to test (8.3 only):

      wget https://koji.xcp-ng.org/repos/user/8/8.3/xcpng-users.repo -O /etc/yum.repos.d/xcpng-users.repo
      yum update --enablerepo=v8.3-u-ndinh1
      
      F A 2 Replies Last reply Reply Quote 2
      • F Offline
        francesco-maria @dinhngtu
        last edited by

        @dinhngtu will be released also for 8.2.1?

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        • olivierlambertO Offline
          olivierlambert Vates 🪐 Co-Founder CEO
          last edited by

          8.2.1 is EOL: https://xcp-ng.org/blog/2025/09/16/xcp-ng-8-2-lts-reached-its-end-of-life/

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          • A Online
            Andrew Top contributor @dinhngtu
            last edited by

            @dinhngtu On a quick test, the ISO boots and installs. When the VM boots from the HD it crashes (and on reboots).

            Updating XCP 8.3 with qemu-4.2.1-5.2.12.2~fixvwc1.1.xcpng8.3.x86_64 solves the issue and the installed windows image boots correctly without any additional changes.

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            • olivierlambertO Offline
              olivierlambert Vates 🪐 Co-Founder CEO
              last edited by

              That's great! \o/

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              • F Offline
                francesco-maria @olivierlambert
                last edited by

                @olivierlambert this problem can cause a crash on update of windows 2025 VM on xcp-ng 8.2.1 or remains only a problem for fresh install?

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                • olivierlambertO Offline
                  olivierlambert Vates 🪐 Co-Founder CEO
                  last edited by

                  8.2 is EOL, and also IDK how it's affected by this issue.

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

                    @francesco-maria I haven't determined what exact conditions would trigger the issue. It seems to only happen on new installations for now, but it could very well change in the future. Though as long as you keep the Xen drivers installed, things should be OK.

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                    • F Offline
                      francesco-maria @dinhngtu
                      last edited by

                      @dinhngtu Thanks for info. I config that manual apply of fix solve the problem on my 8.3.
                      I only chance the yum update in yum update --enablerepo=xcp-ng-ndinh1

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

                        Hello all, the new test build qemu-4.2.1-5.2.12.2~fixvwc2.1.xcpng8.3 is now available.

                        If you have tested the fix before, you can update with this command:

                        yum update --enablerepo=v8.3-u-ndinh1
                        
                        A 1 Reply Last reply Reply Quote 1
                        • A Online
                          Andrew Top contributor @dinhngtu
                          last edited by

                          @dinhngtu Same results with the updated qemu-4.2.1-5.2.12.2~fixvwc2.1.xcpng8.3.x86_64. The Win2025 VM (without Xen tools) fails to boot correctly using stock XCP 8.3 but starts correctly with the fixvwc patch. (no actual performance or other testing done).

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