Bug 568603 - PXE install fails with "cannot create bridge 'virbr0': File exists"
PXE install fails with "cannot create bridge 'virbr0': File exists"
Product: Fedora
Classification: Fedora
Component: libvirt (Show other bugs)
All Linux
low Severity medium
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Assigned To: Daniel Veillard
Fedora Extras Quality Assurance
Depends On:
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Reported: 2010-02-26 01:14 EST by Amit Shah
Modified: 2010-05-18 13:44 EDT (History)
8 users (show)

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Doc Type: Bug Fix
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Last Closed: 2010-05-18 13:44:17 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Amit Shah 2010-02-26 01:14:54 EST
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
Comment 1 Cole Robinson 2010-02-26 18:59:07 EST
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?
Comment 2 Cole Robinson 2010-05-18 13:44:17 EDT
No response for a few months, closing.

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