Comment 1 for bug 1389239

Information from the Precise deployed node :

# apt-cache policy libvirt-bin
libvirt-bin:
  Installed: 1.2.2-0ubuntu13.1.6~cloud0
  Candidate: 1.2.2-0ubuntu13.1.6~cloud0
  Version table:
 *** 1.2.2-0ubuntu13.1.6~cloud0 0
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu/ precise-updates/icehouse/main amd64 Packages
        100 /var/lib/dpkg/status
     0.9.8-2ubuntu17.20 0
        500 http://archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages
     0.9.8-2ubuntu17 0
        500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages

# apt-cache policy apparmor
apparmor:
  Installed: (none)
  Candidate: 2.7.102-0ubuntu3.10
  Version table:
     2.7.102-0ubuntu3.10 0
        500 http://archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages
        100 /var/lib/dpkg/status
     2.7.102-0ubuntu3 0
        500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
# dpkg -l | grep apparmor
rc apparmor 2.7.102-0ubuntu3.10 User-space parser utility for AppArmor
ii libapparmor1 2.7.102-0ubuntu3.10 changehat AppArmor library

From /var/log/juju/unit-nova-compute-0.log :

2014-11-04 14:00:09 INFO install Reading package lists...
2014-11-04 14:00:09 INFO juju-log Installing ['nova-compute', 'genisoimage', 'nova-compute-kvm'] with options: ['--option=Dpkg::Options::=--force-confold']
2014-11-04 14:00:09 INFO install Reading package lists...
2014-11-04 14:00:09 INFO install Building dependency tree...
2014-11-04 14:00:09 INFO install Reading state information...
2014-11-04 14:00:10 INFO install The following extra packages will be installed:
...
2014-11-04 14:00:10 INFO install mailx
2014-11-04 14:00:10 INFO install The following packages will be REMOVED:
2014-11-04 14:00:10 INFO install apparmor
2014-11-04 14:00:10 INFO install The following NEW packages will be installed: