[libvirt-users] virsh net-start default fails

Laine Stump laine at laine.org
Wed Oct 8 15:42:19 UTC 2014

On 10/08/2014 03:52 AM, Michal Privoznik wrote:
> On 07.10.2014 20:53, David Roundy wrote:
>> Hi all,
>> I'm getting an error, and have failed to succeed in googling for help
>> with it.  I have an old VM that I created a while back (at least one
>> reboot ago, possibly a kernel upgrade ago), and am now finding that it
>> won't start due to a lack of the 'default' network.
>> When I look for how to fix this, everyone seems to agree on the command:
>> # virsh net-start default
>> error: failed to get network 'default'
>> error: An error occurred, but the cause is unknown
>> But this fails.  A natural next check would be to use net-list:
>> # virsh net-list --all
>> Name                 State      Autostart
>> -----------------------------------------
>> Which demonstrates that the 'default' network is unknown.  I'm certain
>> that it used to exist, and the file
>> /var/lib/libvirt/network/default.xml
> This is the runtime XML of the network which means the network is
> already running. 

Does /etc/libvirt/qemu/networks/default.xml exist? If so, what is its

(Michal's and Eric's suggestions also apply)

> Maybe turning on the debug logs will shed more light into this.
>   http://wiki.libvirt.org/page/DebugLogs
> Michal
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