Whenever I start my laptop(HP) , 'Network Connections' shows it being connected (though it is actually not) . When I go to 'edit connections' option , it shows virbr0 . I have to delete it every time . How to get rid of this ? Is it a hardware problem ?
On my machine virbr0 interface was created after installation of
libvirt-bin package which is dependency of
Solution 1 (straight-forward):
It seems you can remove it from startup by removing corresponding file with
sudo rm /etc/libvirt/qemu/networks/autostart/default.xml
You can bring it back with
sudo ln -s /etc/libvirt/qemu/networks/default.xml /etc/libvirt/qemu/networks/autostart/default.xml
Solution 2 (with
sudo virsh net-autostart --disable default
sudo virsh net-autostart default
But this has side-effect. If you want to use bridged network in virt-manager you should start bridge before launching VM with
sudo virsh net-start default.
Solution 3 (set virbr0 unmanaged in NetworkManager)
The following lines should be added to the end of /etc/NetworkManager/NetworkManager.conf:
The result: NetworkManager "does not know" about virbr0, but VMs can access bridged networking.
Give this a try this is mostly for Centos
sudo su - virsh net-destroy default virsh net-undefine default systemctl stop libvirtd.service systemctl disable libvirtd.service apt remove qemu-kvm qemu-img virt-manager libvirt libvirt-python libvirt-client virt-install virt-viewer bridge-utils