Red Hat Bugzilla – Bug 568603
PXE install fails with "cannot create bridge 'virbr0': File exists"
Last modified: 2010-05-18 13:44:17 EDT
Description of problem:
This is libvirt from git, installed with 'make rpm'. Using virt-manager from F11 on a remote machine to connect.
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/create.py", line 1315, in validate_final_page
File "/usr/lib64/python2.6/site-packages/libvirt.py", line 612, in create
if ret == -1: raise libvirtError ('virNetworkCreate() failed', net=self)
libvirtError: cannot create bridge 'virbr0': File exists
What's the output of 'brctl show' and 'virsh net-list --all'?
virbr0 is supposed to be created by the 'default' virtual network. Something may have got out of whack, with the network not being torn down correctly, leaving a dangling virbr0.
If virbr0 exists and net-list --all shows 'default' as inactive, can you try 'brctl delbr virbr0', then 'virsh net-start default', and retry?
No response for a few months, closing.