LXC container disappears after cloning a VM (using ZFS)












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I have a VM on google cloud that has 2 disks: system disk and a ZFS disk. I also have a LXC container (named 'lightapi') on that VM, and everything works.
I am using LXC 1.0 (lxc-* commands, without LXD)
The LXC is sharing folders with the ZFS disk.



I wanted to clone the VM, so I stopped it, made snapshots from the disks, and created a new VM using them.



When I boot the new VM, I can see the container files in /var/lib/lxc/lightapi.
But the container is not running, although in the original VM it was set to autorun on boot. If I try to lxc-attach, it doesn't work, with no error message.



It seems that there is something wrong with the ZFS on the new VM:



$ zpool list
no pools available


while on the original VM exists a pool. I believe that as a result the LXC container is not able to connect. Is there a way to connect to the zpool that is in the duplicated disk on the new VM?










share|improve this question



























    0















    I have a VM on google cloud that has 2 disks: system disk and a ZFS disk. I also have a LXC container (named 'lightapi') on that VM, and everything works.
    I am using LXC 1.0 (lxc-* commands, without LXD)
    The LXC is sharing folders with the ZFS disk.



    I wanted to clone the VM, so I stopped it, made snapshots from the disks, and created a new VM using them.



    When I boot the new VM, I can see the container files in /var/lib/lxc/lightapi.
    But the container is not running, although in the original VM it was set to autorun on boot. If I try to lxc-attach, it doesn't work, with no error message.



    It seems that there is something wrong with the ZFS on the new VM:



    $ zpool list
    no pools available


    while on the original VM exists a pool. I believe that as a result the LXC container is not able to connect. Is there a way to connect to the zpool that is in the duplicated disk on the new VM?










    share|improve this question

























      0












      0








      0








      I have a VM on google cloud that has 2 disks: system disk and a ZFS disk. I also have a LXC container (named 'lightapi') on that VM, and everything works.
      I am using LXC 1.0 (lxc-* commands, without LXD)
      The LXC is sharing folders with the ZFS disk.



      I wanted to clone the VM, so I stopped it, made snapshots from the disks, and created a new VM using them.



      When I boot the new VM, I can see the container files in /var/lib/lxc/lightapi.
      But the container is not running, although in the original VM it was set to autorun on boot. If I try to lxc-attach, it doesn't work, with no error message.



      It seems that there is something wrong with the ZFS on the new VM:



      $ zpool list
      no pools available


      while on the original VM exists a pool. I believe that as a result the LXC container is not able to connect. Is there a way to connect to the zpool that is in the duplicated disk on the new VM?










      share|improve this question














      I have a VM on google cloud that has 2 disks: system disk and a ZFS disk. I also have a LXC container (named 'lightapi') on that VM, and everything works.
      I am using LXC 1.0 (lxc-* commands, without LXD)
      The LXC is sharing folders with the ZFS disk.



      I wanted to clone the VM, so I stopped it, made snapshots from the disks, and created a new VM using them.



      When I boot the new VM, I can see the container files in /var/lib/lxc/lightapi.
      But the container is not running, although in the original VM it was set to autorun on boot. If I try to lxc-attach, it doesn't work, with no error message.



      It seems that there is something wrong with the ZFS on the new VM:



      $ zpool list
      no pools available


      while on the original VM exists a pool. I believe that as a result the LXC container is not able to connect. Is there a way to connect to the zpool that is in the duplicated disk on the new VM?







      lxc zfs






      share|improve this question













      share|improve this question











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      share|improve this question










      asked Nov 20 '18 at 11:22









      justadevjustadev

      138211




      138211
























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          I found the answer:



          Before creating the snapshot, on on the original vm, do :



          zpool export [name]


          then stop the original vm, duplicate the disk, and clone the vm. After booting the new vm do:



          zpool import [name]


          And that's it.






          share|improve this answer























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            1 Answer
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            oldest

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            active

            oldest

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            0














            I found the answer:



            Before creating the snapshot, on on the original vm, do :



            zpool export [name]


            then stop the original vm, duplicate the disk, and clone the vm. After booting the new vm do:



            zpool import [name]


            And that's it.






            share|improve this answer




























              0














              I found the answer:



              Before creating the snapshot, on on the original vm, do :



              zpool export [name]


              then stop the original vm, duplicate the disk, and clone the vm. After booting the new vm do:



              zpool import [name]


              And that's it.






              share|improve this answer


























                0












                0








                0







                I found the answer:



                Before creating the snapshot, on on the original vm, do :



                zpool export [name]


                then stop the original vm, duplicate the disk, and clone the vm. After booting the new vm do:



                zpool import [name]


                And that's it.






                share|improve this answer













                I found the answer:



                Before creating the snapshot, on on the original vm, do :



                zpool export [name]


                then stop the original vm, duplicate the disk, and clone the vm. After booting the new vm do:



                zpool import [name]


                And that's it.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 20 '18 at 14:56









                justadevjustadev

                138211




                138211
































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