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    how do you reboot your linux VMs in hyper-v?

    Scheduled Pinned Locked Moved IT Discussion
    hyper-v server 2016ubuntu 16.04virtualizationhelp
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    • scottalanmillerS
      scottalanmiller @matteo nunziati
      last edited by

      @matteo-nunziati said in how do you reboot your linux VMs in hyper-v?:

      @scottalanmiller said in how do you reboot your linux VMs in hyper-v?:

      I've not heard of anyone having this issue. You might have something unique here.

      yes. until it was ubuntu I was thinking about something strange in the vUEFI. but even win over win...

      If the VM does not start at all, then what is in the container won't be the issue.

      1 Reply Last reply Reply Quote 1
      • matteo nunziatiM
        matteo nunziati
        last edited by matteo nunziati

        mmm... got this:

        Restart-VM -Name zi-erp-as
        
        Confirm
        Are you sure you want to restart virtual machine "zi-erp-as"?
        [Y] Yes  [A] Yes to All  [H] Halt Command  [?] Guida (il valore predefinito รจ "Y"):
        Restart-VM : 'zi-erp-as' failed to change state.
            + CategoryInfo          : NotSpecified: (:) [Restart-VM], VirtualizationException
            + FullyQualifiedErrorId : OperationFailed,Microsoft.HyperV.PowerShell.Commands.RestartVM
        

        And the machine just stops.

        Now performed a sequence of start-restart with no idle, just waiting in VM Manager to see the CPU go down and then fire the restart. So far so good... really weird. Let's the VM stay idle for a while and retry!

        Yep! if the machine stays idle for a few tens of seconds everything go nuts:

        Restart-VM -Name zi-erp-as
        
        Confirm
        Are you sure you want to restart virtual machine "zi-erp-as"?
        [Y] Yes  [A] Yes to All  [N] No  [L] No to All  [?] Guida (il valore predefinito รจ "Y"):
        Restart-VM : 'zi-erp-as' failed to change state.
            + CategoryInfo          : NotSpecified: (:) [Restart-VM], VirtualizationException
            + FullyQualifiedErrorId : OperationFailed,Microsoft.HyperV.PowerShell.Commands.RestartVM
        

        Not this specific error but when people get this "change state" suggestions are to rebuild the machine ๐Ÿ˜• but those are all brand new.

        Apparently this is not the case with:

        Stop-VM -Name zi-erp-as; Start-VM -Name zi-erp-as
        

        But this is a no go for remote administration from within the VM. Need to sort this out ๐Ÿ˜ž

        1 Reply Last reply Reply Quote 0
        • matteo nunziatiM
          matteo nunziati
          last edited by

          even tested a gen1 VM: not different.

          1 Reply Last reply Reply Quote 0
          • matteo nunziatiM
            matteo nunziati
            last edited by

            ok, just got that Restart-VM does an hard restart (removes the plug). just forget it!
            still missing an answer...

            1 Reply Last reply Reply Quote 1
            • ObsolesceO
              Obsolesce
              last edited by Obsolesce

              So just the fact that you are running it as a VM makes all the difference?

              If you run it on hardware, can you reboot normally?

              Is it just with Hyper-V? Have you tried it on other hypervisors?

              What happens if you install the latest actual LIS drivers from Microsoft?:
              https://www.microsoft.com/en-us/download/details.aspx?id=51612

              More info:
              https://technet.microsoft.com/windows-server-docs/compute/hyper-v/supported-linux-and-freebsd-virtual-machines-for-hyper-v-on-windows

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

                I never have any problems. I just did this.

                Hyper-V Server 2012 R2 with a CentOS 7 guest in a Gen 2 VM.

                Windows PowerShell
                Copyright (C) 2014 Microsoft Corporation. All rights reserved.
                
                PS C:\Users\user> Restart-VM -Name Zabbix
                
                Confirm
                Are you sure you want to restart virtual machine "Zabbix"?
                [Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"): y
                

                0_1490387994004_upload-b8f64530-8ae3-4f1a-a48d-b016fcca8ecd

                0_1490388018264_upload-016dac8a-f014-4719-904c-d958c4631f50

                0_1490388063831_upload-4188ea58-b27f-4de5-8b1b-cdaa2c6f8388

                1 Reply Last reply Reply Quote 1
                • black3dynamiteB
                  black3dynamite
                  last edited by

                  Try following these instructions:
                  https://technet.microsoft.com/en-us/windows-server-docs/compute/hyper-v/supported-ubuntu-virtual-machines-on-hyper-v

                  1 Reply Last reply Reply Quote 0
                  • matteo nunziatiM
                    matteo nunziati @Obsolesce
                    last edited by matteo nunziati

                    @Tim_G said in how do you reboot your linux VMs in hyper-v?:

                    So just the fact that you are running it as a VM makes all the difference?

                    If you run it on hardware, can you reboot normally?

                    you mean linux or windows? well yes never got issues on HW. but don't know on THIS HW!

                    Is it just with Hyper-V? Have you tried it on other hypervisors?

                    same linux machines on kvm run perfectly and autoreboot at every update

                    What happens if you install the latest actual LIS drivers from Microsoft?:
                    https://www.microsoft.com/en-us/download/details.aspx?id=51612

                    ubuntu has them built in. windows vms don't need...

                    More info:
                    https://technet.microsoft.com/windows-server-docs/compute/hyper-v/supported-linux-and-freebsd-virtual-machines-for-hyper-v-on-windows

                    I was thinking about reboot my win10 machine with hyperv and test there...

                    ObsolesceO 1 Reply Last reply Reply Quote 0
                    • dbeatoD
                      dbeato
                      last edited by

                      Do you have the Linux Hyperv Agent updated?
                      https://technet.microsoft.com/en-us/windows-server-docs/compute/hyper-v/supported-ubuntu-virtual-machines-on-hyper-v

                      1 Reply Last reply Reply Quote 0
                      • matteo nunziatiM
                        matteo nunziati
                        last edited by matteo nunziati

                        @black3dynamite @Eltolargo @Tim_G latest kernel and tools are installed from the HWE stack. this doesn't help. just tried again from a VPN to my office. Also hell win2012r2 doesn't reboot in hyper-v 2016.
                        monday I'll reboot the server from within the server room, with a monitor attached. let see if something strange happens even at hw level...

                        black3dynamiteB dbeatoD 2 Replies Last reply Reply Quote 0
                        • black3dynamiteB
                          black3dynamite @matteo nunziati
                          last edited by

                          This post is deleted!
                          1 Reply Last reply Reply Quote 0
                          • dbeatoD
                            dbeato @matteo nunziati
                            last edited by

                            @matteo-nunziati said in how do you reboot your linux VMs in hyper-v?:

                            nday I'll reboot the server from within the server room, with a monitor attached. let see if something strange happens even at hw level...

                            Looks as if there is more issues with that server than just VMs restarting. Are there any pending updates on it?

                            matteo nunziatiM 1 Reply Last reply Reply Quote 1
                            • matteo nunziatiM
                              matteo nunziati @dbeato
                              last edited by

                              @Eltolargo no just a windows defender update pending. server has been restarted after last update batch.

                              looking now at ubuntu VM in the last reboot I see this:

                              reboot   system boot  4.8.0-41-generic Sat Mar 25 18:21   still running
                              reboot   system boot  4.8.0-41-generic Sat Mar 25 18:48   still running
                              reboot   system boot  4.8.0-41-generic Sat Mar 25 15:15   still running
                              reboot   system boot  4.8.0-41-generic Sat Mar 25 15:11 - 15:14  (00:03)
                              reboot   system boot  4.8.0-41-generic Sat Mar 25 15:10 - 15:11  (00:00)
                              reboot   system boot  4.4.0-66-generic Sat Mar 25 15:00 - 15:11  (00:10)
                              

                              3 sessions still running! bah this is for sure something broken...

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

                                You have never shown your Hyper-V configuration.

                                matteo nunziatiM 1 Reply Last reply Reply Quote 0
                                • matteo nunziatiM
                                  matteo nunziati @JaredBusch
                                  last edited by

                                  @JaredBusch yes... Err... what conf? The vm conf (always the same) or the hypervisor itself?

                                  1 Reply Last reply Reply Quote 0
                                  • matteo nunziatiM
                                    matteo nunziati
                                    last edited by

                                    Disabled hyperv time services and forced linux rtc to utc. Now monitoring drifts ( never say never). but win2012r2... Don't know..

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                                    • ObsolesceO
                                      Obsolesce @matteo nunziati
                                      last edited by

                                      @matteo-nunziati said in how do you reboot your linux VMs in hyper-v?:

                                      ubuntu has them built in. windows vms don't need...

                                      I know it's built in. But I would still try the latest from Microsoft as a troubleshooting step.

                                      black3dynamiteB 1 Reply Last reply Reply Quote 0
                                      • black3dynamiteB
                                        black3dynamite @Obsolesce
                                        last edited by

                                        @Tim_G
                                        The downloads from Microsoft is for Red Hat and CentOS. For Ubuntu, installing linux-virtual package is all that is needed.

                                        ObsolesceO 1 Reply Last reply Reply Quote 1
                                        • ObsolesceO
                                          Obsolesce @black3dynamite
                                          last edited by

                                          @black3dynamite said in how do you reboot your linux VMs in hyper-v?:

                                          @Tim_G
                                          The downloads from Microsoft is for Red Hat and CentOS. For Ubuntu, installing linux-virtual package is all that is needed.

                                          Ah that's right!

                                          1 Reply Last reply Reply Quote 0
                                          • matteo nunziatiM
                                            matteo nunziati
                                            last edited by matteo nunziati

                                            OK now I've eliminated some drifting in RCT <- yes RCT. I've monitored both gen1 and gen2 vm for something like 12 hours. no drift in 12 hours of VM idling.

                                            this doesn't solve the thing: issued a reboot. got a shutdown! but at least without timing integration services now clocks seems logic in the VMs. I think even @JaredBusch got issues with timing and constant time reassignments...

                                            I've also rebooted the server from the closet, nothing strange in the reboot sequence: all ok with the hypervisor. I've a new win update. let's apply this. also let's check the "latest" HPE service pack from october 2016, maybe some driver is apparently ok, but requires update...

                                            bah. I'm going to think it's me. I'm cursed w/ hpe stuff.

                                            A last thing remains: enter bios disable power savings and CPU c-states and let's see... then I'll STONITH my self ๐Ÿ˜•

                                            f#@*$%!

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