Comment 12 for bug 1347020

The problem is fixed but needs additional comment.
I've had a problem after upgrading only lxc package from trusty-backports.
The network was not working in debian jessie and after logging in (lxc-attach) systemd was not working correctly.
The solution was to update not only lxc package but also lxc-templates and recreate guest OS.

rm -rf /var/cache/lxc/debian # remove cached debian template
apt-get install -t trusty-backports lxc lxc-templates # update both lxc and lxc-templates

After that it works without a problem. Thank you for the fix.