I'm getting an error, and have failed to succeed in googling for help with it. I have an old VM that I created a while back (at least one reboot ago, possibly a kernel upgrade ago), and am now finding that it won't start due to a lack of the 'default' network.
# virsh net-start default
error: failed to get network 'default'
error: An error occurred, but the cause is unknown
But this fails. A natural next check would be to use net-list:
# virsh net-list --all
Name State Autostart
-----------------------------------------
Which demonstrates that the 'default' network is unknown. I'm certain that it used to exist, and the file
/var/lib/libvirt/network/default.xml
does exist, claims to be autogenerated and looks reasonable. I am at a loss as to how to debug this further.
Any suggestions?
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David Roundy