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    Hyper-V 2012R2 unable to add boot device

    Scheduled Pinned Locked Moved Solved IT Discussion
    hyper-v 2012 r2windows server 2012 r2hyper-vboot order
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    • RojoLocoR
      RojoLoco @Obsolesce
      last edited by

      @Obsolesce said in Hyper-V 2012R2 unable to add boot device:

      @JaredBusch

      Does deleting the DVD drive, applying that, then adding it again get it listed?

      This should work, though I've only used 2012R2 Hyper-V briefly. Definitely works on 2016/2019.

      1 Reply Last reply Reply Quote 0
      • J
        JasGot @JaredBusch
        last edited by

        @JaredBusch Is the VM Gen1 or Gen2?

        Look on the Summary tab at the bottom of Hyper-V Manager when the VM Server is highlighted.

        ObsolesceO 1 Reply Last reply Reply Quote 0
        • ObsolesceO
          Obsolesce @JasGot
          last edited by

          @JasGot said in Hyper-V 2012R2 unable to add boot device:

          @JaredBusch Is the VM Gen1 or Gen2?

          Look on the Summary tab at the bottom of Hyper-V Manager when the VM Server is highlighted.

          You can easily see it's Gen2 by the settings window in his screenshot.

          J 1 Reply Last reply Reply Quote 0
          • J
            JasGot @Obsolesce
            last edited by

            @Obsolesce Where? Can you circle it?

            ObsolesceO 1 Reply Last reply Reply Quote 0
            • ObsolesceO
              Obsolesce @JasGot
              last edited by

              @JasGot said in Hyper-V 2012R2 unable to add boot device:

              @Obsolesce Where? Can you circle it?

              Go create a gen1 VM, look at the settings, then look at Jared's screenshot. It'll be 1000% clear.

              1 Reply Last reply Reply Quote 0
              • JaredBuschJ
                JaredBusch @Obsolesce
                last edited by JaredBusch

                @Obsolesce said in Hyper-V 2012R2 unable to add boot device:

                @JaredBusch

                Does deleting the DVD drive, applying that, then adding it again get it listed?

                It did not add it to the list.

                But when I first click New DVD drive, the Firmware changes to say boot entry changes pending.
                517ffd75-542e-44ab-9d16-240511659c01-image.png

                but nothing is changed in the end.
                ae9b34e5-7bb9-417f-96b0-3a04bd043f6c-image.png

                dbeatoD ObsolesceO RojoLocoR 3 Replies Last reply Reply Quote 0
                • dbeatoD
                  dbeato @JaredBusch
                  last edited by

                  @JaredBusch Can you add an additional SCSI Controller and then add the DVD Drive to that new controller on the VM?

                  JaredBuschJ 2 Replies Last reply Reply Quote 0
                  • JaredBuschJ
                    JaredBusch @dbeato
                    last edited by

                    @dbeato said in Hyper-V 2012R2 unable to add boot device:

                    @JaredBusch Can you add an additional SCSI Controller and then add the DVD Drive to that new controller on the VM?

                    I'll try it when the restore finishes.

                    1 Reply Last reply Reply Quote 0
                    • ObsolesceO
                      Obsolesce @JaredBusch
                      last edited by

                      @JaredBusch said in Hyper-V 2012R2 unable to add boot device:

                      @Obsolesce said in Hyper-V 2012R2 unable to add boot device:

                      @JaredBusch

                      Does deleting the DVD drive, applying that, then adding it again get it listed?

                      It did not add it to the list.

                      But when I first click New DVD drive, the Firmware changes to say boot entry changes pending.
                      517ffd75-542e-44ab-9d16-240511659c01-image.png

                      but nothing is changed in the end.
                      ae9b34e5-7bb9-417f-96b0-3a04bd043f6c-image.png

                      Very weird.

                      Do you have enough free space to duplicate the disk and attach it to a new VM? Not sure if that'll work, might be worth testing with a test VM and disk with same OS.

                      JaredBuschJ 1 Reply Last reply Reply Quote 0
                      • JaredBuschJ
                        JaredBusch @dbeato
                        last edited by

                        @dbeato said in Hyper-V 2012R2 unable to add boot device:

                        @JaredBusch Can you add an additional SCSI Controller and then add the DVD Drive to that new controller on the VM?

                        No luck.
                        773f7c3d-bf77-4d00-86cd-67a9ecc05287-image.png

                        1 Reply Last reply Reply Quote 0
                        • RojoLocoR
                          RojoLoco @JaredBusch
                          last edited by

                          @JaredBusch clicking "apply" after adding the boot device should commit those changes. I click apply after each setting I change on any VM.

                          JaredBuschJ 1 Reply Last reply Reply Quote 0
                          • JaredBuschJ
                            JaredBusch @Obsolesce
                            last edited by

                            @Obsolesce said in Hyper-V 2012R2 unable to add boot device:

                            Very weird.

                            Do you have enough free space to duplicate the disk and attach it to a new VM? Not sure if that'll work, might be worth testing with a test VM and disk with same OS.

                            Not at the moment. In a couple months, after they move from Exchange 2013 on prem to Exchange Online I will have all the space I need for workload changes.

                            But a couple months does not help me know. I was hoping ot boot to gparted to see what is says about the underlying disk (see my other thread).

                            1 Reply Last reply Reply Quote 0
                            • JaredBuschJ
                              JaredBusch @RojoLoco
                              last edited by

                              @RojoLoco said in Hyper-V 2012R2 unable to add boot device:

                              @JaredBusch clicking "apply" after adding the boot device should commit those changes. I click apply after each setting I change on any VM.

                              Yes, new device, change, wtf ever all apply, but there is never anything added to the boot order.

                              1 Reply Last reply Reply Quote 0
                              • JaredBuschJ
                                JaredBusch
                                last edited by

                                Found the problem......
                                Down in this thread.
                                https://social.technet.microsoft.com/Forums/windows/en-US/cedea9ad-8b3d-4abb-9c36-08aa7eeb7ddb/cannot-change-generation-2-vms-boot-order

                                c9537d4c-5696-481a-af6c-e27bcdfedf7c-image.png

                                1 Reply Last reply Reply Quote 1
                                • JaredBuschJ
                                  JaredBusch
                                  last edited by JaredBusch

                                  And I ran that fucking mofcomp fix years ago on this server.

                                  https://mangolassi.it/topic/16751/windows-10-hyper-v-manager-unable-to-connect-to-server-2012-r2

                                  1 Reply Last reply Reply Quote 2
                                  • JaredBuschJ JaredBusch has marked this topic as solved on
                                  • JaredBuschJ
                                    JaredBusch
                                    last edited by

                                    I'll be spinning up a new Nextcloud instance and simply manually migrating users to it I think.

                                    1 Reply Last reply Reply Quote 1
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