Comment 24 for bug 1317548

The issue was reproduced on ISO #216 during system tests:

http://jenkins-product.srt.mirantis.net:8080/view/0_0_swarm/job/master_fuelmain.system_test.centos.thread_1/63/testReport/(root)/migrate_vm_backed_with_ceph/migrate_vm_backed_with_ceph/

ISO still contains old nova packages without requirements for 'conntrack-tools', so we need to update it in repositories mirrors.