Libvirt restore a copy of a VM

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tl;dr : Is it possible to dump the memory of a live VM and then use that memory with a copy of the same VM.



I have a running VM for which I did virsh save myvm which created a file.
With this file, I can easily do virsh restore file to have the VM immediately ready with RAM loaded.



Now, I'd like to make copies of this VM. I use qemu-img create -f qcow2 -b myvm.qcow2 newvm.qcow2 (use myvm.qcow2 as a backing file).
For this new VM, I'd also like to already load the memory, skipping the boot step of the VM.



I tried to virsh restore newvm --xml newvm.xml where newvm contains a new uuid and points to the newvm.qcow2, however libvirt does not allow this: unsupported configuration: Target domain uuid xx does not match source yy




qemu libvirt virsh




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    up vote
    0
    down vote

    favorite












    tl;dr : Is it possible to dump the memory of a live VM and then use that memory with a copy of the same VM.



    I have a running VM for which I did virsh save myvm which created a file.
    With this file, I can easily do virsh restore file to have the VM immediately ready with RAM loaded.



    Now, I'd like to make copies of this VM. I use qemu-img create -f qcow2 -b myvm.qcow2 newvm.qcow2 (use myvm.qcow2 as a backing file).
    For this new VM, I'd also like to already load the memory, skipping the boot step of the VM.



    I tried to virsh restore newvm --xml newvm.xml where newvm contains a new uuid and points to the newvm.qcow2, however libvirt does not allow this: unsupported configuration: Target domain uuid xx does not match source yy




    qemu libvirt virsh




    share|improve this question






















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      tl;dr : Is it possible to dump the memory of a live VM and then use that memory with a copy of the same VM.



      I have a running VM for which I did virsh save myvm which created a file.
      With this file, I can easily do virsh restore file to have the VM immediately ready with RAM loaded.



      Now, I'd like to make copies of this VM. I use qemu-img create -f qcow2 -b myvm.qcow2 newvm.qcow2 (use myvm.qcow2 as a backing file).
      For this new VM, I'd also like to already load the memory, skipping the boot step of the VM.



      I tried to virsh restore newvm --xml newvm.xml where newvm contains a new uuid and points to the newvm.qcow2, however libvirt does not allow this: unsupported configuration: Target domain uuid xx does not match source yy




      qemu libvirt virsh




      share|improve this question












      tl;dr : Is it possible to dump the memory of a live VM and then use that memory with a copy of the same VM.



      I have a running VM for which I did virsh save myvm which created a file.
      With this file, I can easily do virsh restore file to have the VM immediately ready with RAM loaded.



      Now, I'd like to make copies of this VM. I use qemu-img create -f qcow2 -b myvm.qcow2 newvm.qcow2 (use myvm.qcow2 as a backing file).
      For this new VM, I'd also like to already load the memory, skipping the boot step of the VM.



      I tried to virsh restore newvm --xml newvm.xml where newvm contains a new uuid and points to the newvm.qcow2, however libvirt does not allow this: unsupported configuration: Target domain uuid xx does not match source yy





      qemu libvirt virsh





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      asked Oct 21 '17 at 16:11









      Jochen

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