On Thu, Nov 02, 2017 at 09:24:22AM +0000, Stefan Hajnoczi wrote:

On Sun, Oct 29, 2017 at 04:07:09AM -0700, msliu@reynoldstocks.com wrote:

...

I have performed following steps:

$ virsh net-destroy default $ virsh net-undefine default

Now I couldn't start guest with following warning popup: Error starting domain: Network not found: no network with matching name 'default'

Please advise how to re-create 'default' instead of reinstalling all guests.

This is a libvirt question. I have CCed the libvirt mailing list so you can continue discussion there.

On Red Hat-based distros try reinstalling the libvirt-daemon-config-network package. On Debian-based distros try reinstalling the libvirt-daemon-system package. This should restore the /etc/libvirt/qemu/networks/default.xml file that you are missing.

No need to re-install those RPMs - Libvirt leaves a copy of the stock XML file at /usr/share/libvirt/networks/default.xml. So just run virsh define /usr/share/libvirt/networks/default.xml virsh start default Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|