Comment 1 for bug 1418568

This was found in bug 1407699.

 * on precise juju uses the cloud tools archive (https://wiki.ubuntu.com/ServerTeam/CloudToolsArchive)
 * precise's version of cloud-init depends on cloud-utils
 * Juju began installing cloud-image-utils.
 * cloud-image-utils conflicts with cloud-utils. cloud-image-utils was just a re-packaging for dependency shrink and so it conflicts with older versions of cloud-utils which would include the same set of files.

To reproduce, launch precise instance:
$ sudo apt-add-repository -y cloud-archive:tools
$ sudo apt-get update -qy
$ apt-get install --dry-run -q cloud-image-utils
NOTE: This is only a simulation!
      apt-get needs root privileges for real execution.
      Keep also in mind that locking is deactivated,
      so don't depend on the relevance to the real current situation!
Reading package lists...
Building dependency tree...
Reading state information...
The following extra packages will be installed:
  distro-info distro-info-data genisoimage libaio1 libnspr4 libnss3 librados2
  librbd1 python-distro-info qemu-utils
Suggested packages:
  shunit2 wodim cdrkit-doc
The following packages will be REMOVED:
  cloud-init cloud-initramfs-growroot cloud-utils
The following NEW packages will be installed:
  cloud-image-utils distro-info distro-info-data genisoimage libaio1 libnspr4
  libnss3 librados2 librbd1 python-distro-info qemu-utils
0 upgraded, 11 newly installed, 3 to remove and 9 not upgraded.
Remv cloud-init [0.6.3-0ubuntu1.15]
Remv cloud-initramfs-growroot [0.4ubuntu1]
Remv cloud-utils [0.25-0ubuntu5.1]
Inst libaio1 (0.3.109-2ubuntu1 Ubuntu:12.04/precise [amd64])
Inst libnspr4 (4.10.7-0ubuntu0.12.04.1 Ubuntu:12.04/precise-updates [amd64])
Inst libnss3 (3.17.1-0ubuntu0.12.04.2 Ubuntu:12.04/precise-updates [amd64])
Inst distro-info-data (0.8ubuntu0.7 Ubuntu:12.04/precise-updates [all])
Inst distro-info (0.8.2 Ubuntu:12.04/precise [amd64])
Inst genisoimage (9:1.1.11-2ubuntu2 Ubuntu:12.04/precise [amd64])
Inst librados2 (0.41-1ubuntu2.1 Ubuntu:12.04/precise-updates [amd64])
Inst librbd1 (0.41-1ubuntu2.1 Ubuntu:12.04/precise-updates [amd64])
Inst python-distro-info (0.8.2 Ubuntu:12.04/precise [all])
Inst qemu-utils (1.0+noroms-0ubuntu14.21 Ubuntu:12.04/precise-updates [amd64])
Inst cloud-image-utils (0.27-0ubuntu9~ctools0 precise-updates [all])
Conf libaio1 (0.3.109-2ubuntu1 Ubuntu:12.04/precise [amd64])
Conf libnspr4 (4.10.7-0ubuntu0.12.04.1 Ubuntu:12.04/precise-updates [amd64])
Conf libnss3 (3.17.1-0ubuntu0.12.04.2 Ubuntu:12.04/precise-updates [amd64])
Conf distro-info-data (0.8ubuntu0.7 Ubuntu:12.04/precise-updates [all])
Conf distro-info (0.8.2 Ubuntu:12.04/precise [amd64])
Conf genisoimage (9:1.1.11-2ubuntu2 Ubuntu:12.04/precise [amd64])
Conf librados2 (0.41-1ubuntu2.1 Ubuntu:12.04/precise-updates [amd64])
Conf librbd1 (0.41-1ubuntu2.1 Ubuntu:12.04/precise-updates [amd64])
Conf python-distro-info (0.8.2 Ubuntu:12.04/precise [all])
Conf qemu-utils (1.0+noroms-0ubuntu14.21 Ubuntu:12.04/precise-updates [amd64])
Conf cloud-image-utils (0.27-0ubuntu9~ctools0 precise-updates [all])