Failed to connect socket to '/var/run/libvirt/libvirt-sock'

[imehrdad2012]

I trying to grizzly version on ubuntu 13.04. it's says Failed to connect
socket to '/var/run/libvirt/libvirt-sock'

Please check my console log
root@dahlia:# kvm-ok
INFO: /dev/kvm exists
KVM acceleration can be used
root@dahlia:# virsh net-destroy default
error: failed to connect to the hypervisor
error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such
file or directory
root@dahlia:~# virsh net-undefine default
error: failed to connect to the hypervisor
error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such
file or directory

Do you have any suggestion how to resolve this issue?

[aosi87]

Well this is ubuntu?, if its that so try checking the permissions right in each directory. check if root its in the default group (libvirtd), watch the logs (/var/log/messages),
check:

virsh 'net-list '

and see if its really exist a default option.
this problem can be also that libvirtd its not running, if its that so try:

service libvirtd restart
/etc/init.d/libvirt restart

or check if its in the rc.d files, start it up when the machine boots. http://wiki.libvirt.org/page/The_daemon_cannot_be_started

thats some problems i have when i learn to use KVM =D cheers .

[Tycheon]

Just ran into this issue, and restarting the service did the trick. Thanks! =)

[theassyrian]

good call!

[perlun]

Just ran into the same issue on Debian: sudo apt-get install libvirt-daemon-system helped me solve it.

[ycs0220]

I have the same question on Centos7.4