XCP-ng
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Register
    • Login

    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

    Scheduled Pinned Locked Moved XCP-ng
    35 Posts 10 Posters 11.4k Views 8 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • D
      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=xcp-ng-ndinh1
      
      F A 2 Replies Last reply
      Reply Quote 2
      • F
        francesco-maria @dinhngtu
        last edited by

        @dinhngtu will be released also for 8.2.1?

        1 Reply Last reply
        Reply Quote 0
        • olivierlambertO
          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/

          F 1 Reply Last reply
          Reply Quote 0
          • A
            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.

            1 Reply Last reply
            Reply Quote 3
            • olivierlambertO
              olivierlambert Vates 🪐 Co-Founder CEO
              last edited by

              That's great! \o/

              1 Reply Last reply
              Reply Quote 0
              • F
                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?

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

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

                  1 Reply Last reply
                  Reply Quote 0
                  • D
                    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.

                    F C 2 Replies Last reply
                    Reply Quote 1
                    • F
                      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

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

                        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=xcp-ng-ndinh1
                        
                        A 1 Reply Last reply
                        Reply Quote 1
                        • A
                          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).

                          1 Reply Last reply
                          Reply Quote 0
                          • C
                            coconutit
                            last edited by

                            @Andrew said in 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:

                            fixvwc patch

                            Having the same isaue with a new Windows Server 2025 VM , tried to get the updates but it failed also, see attached

                            fcdff538-909b-488c-837c-0898b84ee3b3-image.png

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

                              @coconutit Did you run thie command?

                              wget https://koji.xcp-ng.org/repos/user/8/8.3/xcpng-users.repo -O /etc/yum.repos.d/xcpng-users.repo
                              
                              C 1 Reply Last reply
                              Reply Quote 0
                              • C
                                coconutit @dinhngtu
                                last edited by

                                @dinhngtu
                                I ran the command you sent but same result trying get the fix . see attached pic.

                                2c83cc66-154e-483c-b7a8-75209d7c643c-image.png

                                Thanks for you help, trying to get this server in production.

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

                                  @coconutit I made a mistake with the command, it should be:

                                  yum update --enablerepo=xcp-ng-ndinh1
                                  

                                  (updated up top)

                                  C J 2 Replies Last reply
                                  Reply Quote 0
                                  • C
                                    coconutit @dinhngtu
                                    last edited by

                                    @dinhngtu
                                    Yeah!! that was the issue, update applied server booting!! Thanks.

                                    f4e009a8-e85a-40fe-954c-9dfa7798f2c7-image.png

                                    1 Reply Last reply
                                    Reply Quote 2
                                    • J
                                      JCS-RVK @dinhngtu
                                      last edited by

                                      @dinhngtu That got my fresh install to boot as well. Thank you!

                                      1 Reply Last reply
                                      Reply Quote 2
                                      • C
                                        cg @dinhngtu
                                        last edited by

                                        @dinhngtu I can't say on XCP-ng side, but it's likely linked to:
                                        August patch (and following), as Microsoft changed something to the NVMe stack.

                                        e.g.
                                        https://learn.microsoft.com/en-us/answers/questions/5536733/potential-ssd-detection-bug-in-windows-11-24h2-fol

                                        Google gives a lot about it. It seems that it most likely doesn't kill NVMes but can cause trouble.
                                        We have a few PCs becoming more unstable (BSODs) or even very slow after that upgrae.

                                        1 Reply Last reply
                                        Reply Quote 1
                                        • acebmxerA acebmxer referenced this topic on

                                        Hello! It looks like you're interested in this conversation, but you don't have an account yet.

                                        Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.

                                        With your input, this post could be even better 💗

                                        Register Login
                                        • First post
                                          Last post