lxc

qemu-nbd error: Unexpected error while running command.
Command: sudo nova-rootwrap /etc/nova/rootwrap.conf qemu-nbd -c /dev/nbd14p1 /var/lib/nova/instances/instance-00000042/disk
Exit code: 1
Stdout: ''
Stderr: 'Failed to open /dev/nbd14p1: No such file or directory' mount /usr/lib/python2.7/dist-packages/nova/virt/disk/api.py:272