Comment 5 for bug 1280461

Hi,
 I install either precise or trusty using Maas, so I have the bridge MaaS sets for me :

juju switch maas
juju bootstrap
juju ssh 0
juju add-machine lxc:0
juju ssh 0

ifconfig -a
....
lxcbr0 Link encap:Ethernet HWaddr f2:1f:29:cb:04:cb
          inet adr:10.0.3.1 Bcast:10.0.3.255 Masque:255.255.255.0
          adr inet6: fe80::f01f:29ff:fecb:4cb/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
          TX packets:185855 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0
          Octets reçus:0 (0.0 B) Octets transmis:29065271 (29.0 MB)
...
but

/var/lib/juju/containers/juju-machine-0-lxc-6/lxc.conf
contains
lxc.network.link = br0

the result is
juju status :
...
    containers:
      0/lxc/6:
        agent-state-info: '(error: error executing "lxc-start": command get_cgroup
          failed to receive response)'
        instance-id: pending
        series: trusty
...

I dunno what changed, but 1 or 2 weeks ago it was just working
maybe some recent change in maas that make br0 is not set