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Asked: 2018-05-15 14:27:09 +0800 CST

Can't start KVM guest: "network 'default' is not active"

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I use Virtual Machine Manager (virt-manager).

  • Host: Ubuntu 18.04.
  • Guest: Windows.

After first shutdown I can't start it. I get this error message:

Error starting domain: Requested operation is not valid: network 'default' is not active

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 89, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 125, in tmpcb
    callback(*args, **kwargs)
  File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 82, in newfn
kvm virt-manager

1 Answers

  1. First, confirm that the default network is indeed inactive:

    sudo virsh net-list --all

    If so, start the default network:

    sudo virsh net-start default

    Run the first command line again to see if it worked.

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