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XenServer VM startup is getting error: An unknown error occurred while attempting to config interface

Barznj Abdullah




I have restarted XenServer and after that my VMs are not getting started again and I am getting below error:


An unknown error occurred while attempting to config interface





[root@localhost xapi]# xe vm-list
uuid ( RO)           : 2e2c7c82-bc64-416f-a628-c8fb5b7d116e
     name-label ( RW): Control domain on host: localhost.localdomain
    power-state ( RO): running

uuid ( RO)           : a4d48dee-84b9-46fc-da32-263cb6d7b08f
     name-label ( RW): LSS_delivery_PTF_3.0_v.3.0-2
    power-state ( RO): halted

uuid ( RO)           : 333641e6-9f8a-a283-431c-a06a9cf4c0de
     name-label ( RW): PROSPER 4.1
    power-state ( RO): halted

uuid ( RO)           : 88db59aa-bf0d-c9a8-be86-5a21a366156d
     name-label ( RW): NSN-SN-186
    power-state ( RO): halted

[root@localhost xapi]# xe host-list
uuid ( RO)                : f2dafc1e-6984-46bb-943f-7994a5ae9dc9
          name-label ( RW): Xen
    name-description ( RW): Default install of XenServer

[root@localhost xapi]# 



any suggestions on what will be the issue?

in Emergency Interface Reset, I will be able to give the IP to the current host where those VMs are running on. but I am not able to start the VMs due to no interface is configured.


waiting your kind feedbacks


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Sounds like your interface for your virtual nic isn't detected the same now for whatever reason. 

If all of your physical nics are being detected you may have to do a nic reorder to get the physical

nic you are using for your VM's to align with how the nic order use to be.  If the physical nic order

gets rearranged, then this sort of thing can happen.  But you can override the detected order.









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Somehow I managed to make the interface to be OK, by some xapi service stop, restore db file and then start it again.

But now when I startup one VM which Windows installed on it, I can see it is not getting IP and its memory consumption is 100% used.

is there any way to check console for that VM and see what is its status? issue is that I dont have XenDesktop since it is asking for .NET 3.5. any other ways to access console for that VM?


really appreciate it




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