[libvirt-users] removing virbr0

[Andrea Bolognani]

On Wed, 2016-03-09 at 14:15 +0000, Andrei Perietanu wrote:
> I am building a custom Linux image which includes KVM and will be installed on multiple machines. By default when
> installing libvirt you get a 'default network' which adds a 'vrbr0'.
> I found several tutorials online about removing this 'virbr0' but I would like to not have it in the first place.
> 
> I am compiling libvirt from source so I would think there is some compile time option or some configuration file I
> need to change for the default network not to be included.

It should be enough to run

  # virsh net-autostart --disable default

or delete

  /etc/libvirt/qemu/networks/autostart/default.xml

after installation. You can also run

  # virsh net-undefine default

or delete

  /etc/libvirt/qemu/networks/default.xml

if you are sure you're never going to need the
default network.

Cheers.

-- 
Andrea Bolognani
Software Engineer - Virtualization Team