Introduction of Open vSwitch course issue


I am trying to follow the excercise in Introduction of Open vSwitch course. However, I am stuck with the linux containers. I am getting the following errors:

virsh # create /home/vagrant/ovs_examples/net/lxc0.xml
Domain lxc0 created from /home/vagrant/ovs_examples/net/lxc0.xml

virsh #
Broadcast message from [email protected] (Thu 2015-05-21 16:51:16 AST):

systemd[5379]: Failed to allocate manager object: No such file or directory

virsh # console lxc0
Connected to domain lxc0
Escape character is ^]
Failed to mount cgroup at /sys/fs/cgroup/systemd: Permission denied

Welcome to Ubuntu 15.04!

[!!!!!!] Failed to allocate manager object, freezing.


Any clue on how to get over this issue.




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