I'm trying to build fedora-27 image for testing uploads: $ virt-builder fedora-27 -o /var/tmp/fedora-27.img ... [ 25.2] Opening the new disk virt-builder: error: libguestfs error: bridge ‘virbr0’ not found. Try running: brctl show to get a list of bridges on the host, and then selecting the bridge you wish the appliance network to connect to using: export _SETTINGS=network_bridge=<bridge name>

I don't want to add bridges to my new fresh oVirt test host, and remember that this used to work previously without the bridge.

On Wed, Oct 10, 2018 at 10:18 AM Pino Toscano <ptoscano(a)redhat.com&gt; wrote: > On Tuesday, 9 October 2018 20:16:04 CEST Nir Soffer wrote: > > I'm trying to build fedora-27 image for testing uploads: > > > > $ virt-builder fedora-27 -o /var/tmp/fedora-27.img > > ... > > [ 25.2] Opening the new disk > > virt-builder: error: libguestfs error: bridge ‘virbr0’ not found. Try > > running: > > > > brctl show > > > > to get a list of bridges on the host, and then selecting the > > bridge you wish the appliance network to connect to using: > > > > export _SETTINGS=network_bridge=<bridge name> > > The libvirt backend uses a network bridge on the host to setup the > networking in the guest, which is enabled by default in virt-builder. > OK, now it is clear why bypassing libvirt avoids this issue. So maybe I'm missing some libvirt package required for creating the bridge? libvirt is installed by vdsm, which requires: libvirt-client libvirt-daemon-config-nwfilter libvirt-daemon-kvm libvirt-lock-sanlock libvirt-python

On Wed, Oct 10, 2018 at 2:49 PM Daniel P. Berrangé <berrange(a)redhat.com&gt; wrote: > On Wed, Oct 10, 2018 at 02:27:44PM +0300, Nir Soffer wrote: > > On Wed, Oct 10, 2018 at 10:18 AM Pino Toscano <ptoscano(a)redhat.com&gt; > wrote: > > > > > On Tuesday, 9 October 2018 20:16:04 CEST Nir Soffer wrote: > > > > I'm trying to build fedora-27 image for testing uploads: > > > > > > > > $ virt-builder fedora-27 -o /var/tmp/fedora-27.img > > > > ... > > > > [ 25.2] Opening the new disk > > > > virt-builder: error: libguestfs error: bridge ‘virbr0’ not found. > Try > > > > running: > > > > > > > > brctl show > > > > > > > > to get a list of bridges on the host, and then selecting the > > > > bridge you wish the appliance network to connect to using: > > > > > > > > export _SETTINGS=network_bridge=<bridge name> > > > > > > The libvirt backend uses a network bridge on the host to setup the > > > networking in the guest, which is enabled by default in virt-builder. > > > > > > > OK, now it is clear why bypassing libvirt avoids this issue. > > > > So maybe I'm missing some libvirt package required for creating the > > bridge? > > > > libvirt is installed by vdsm, which requires: > > libvirt-client > > libvirt-daemon-config-nwfilter > > libvirt-daemon-kvm > > libvirt-lock-sanlock > > libvirt-python > > virbr0 is provided by the libvirt default virtual network, which > sets up NAT based forwarding > > VDSM doesn't want this network connectivity so it doesn't install > the libvirt default network, hence you don't have any virbr0. > > You can get it by installing the libvirt-daemon-config-network RPM > So maybe libguestfs-tools-c should depend on it?