Comment 9 for bug 1364081

I have made update and rollback for CentOS and Ubuntu clusters.

Steps to reproduce:
        1. Create env with Fuel 5.0.26 (2014.1)
        2. Create CentOS cluster: (simple, neutron/vlan, ceilometer, ceph vol/ceph images, 1 controller+mongo, 4 compute+cinder+ceph)
        3. Store packages versions from cluster nodes to a file (5.0.0.26.orig.sorted.txt for centos and 5.0.0.26-before-update.sorted.txt for ubuntu)
        4. Upgrade env to 5.1 using http://jenkins-product.srt.mirantis.net:8080/job/fuel_master_iso/493/
        5. Update CentOS cluster to 5.0.2
        6. Store packages versions from cluster nodes to a file (5.0.2.versions.sorted.txt for centos and 5.0.2-updated.sorted.txt for ubuntu)
        7. Run OSTF
        8. Make diagnostic snapshot (centos-5.0.2-fuel-snapshot and ubuntu-5.0.2-fuel-snapshot was made)
        9. Rollback cluster to 5.0.0.26
        10. Store packages versions from cluster nodes to a file (5.0.0.26-reverted.versions.sorted.txt for centos and 5.0.0.26-reverted.sorted.txt for ubuntu)
        11. Make diagnostic snapshot (centos-reverted-to-5.0.0.26 and ubuntu-reverted-to-5.0.0.26)

The following are diagnostic snapshots:
centos-5.0.2-fuel-snapshot-2014-09-09_09-13-41.tgz
ubuntu-5.0.2-fuel-snapshot-2014-09-03_14-06-18.tgz
centos-reverted-to-5.0.0.26~ot-2014-09-09_11-43-48.tgz
ubuntu-reverted-to-5.0.0.26~ot-2014-09-03_14-06-18.tgz

The following are packages lists before updating cluster, after updating and after rollback (there is lists for controller and just one of compute nodes since they are the same):
centos-reverted-5.0.0.26.tar.gz
ubuntu-reverted-5.0.0.26.tar.gz

P.S. Updating of CentOS cluster to 5.0.2 failed, it is described in the https://bugs.launchpad.net/fuel/+bug/1367158 . Rollback for CentOS failed too. So on compute nodes some packages were not downgraded.