2015-10-22 18:45 GMT+02:00 Ernesto Rapetti, Ing. <erapetti at item.org.uy>: > Hi, Is it possible to upgrade from kilo to liberty? Yes, but it's not just yum upgrade unfortunately. > I'm getting this error when trying to install liberty on a CentOs 7 system > that has kilo installed and all packages updated: ... > Error: centos-release-openstack-liberty conflicts with > centos-release-openstack-kilo-1-2.el7.noarch That's intentional to prevent accidental code upgrades w/o corresponding database and config file changes. Please see https://lists.centos.org/pipermail/centos-announce/2015-October/021432.html posted last week as a preparation for Liberty release, which included this notice about upgrades: "Kilo to Liberty update process will require administrative actions, for details see "Upgrade Notes" in upstream release notes https://wiki.openstack.org/wiki/ReleaseNotes/Liberty" We don't have RDO Kilo to Liberty specific instructions yet but to get the idea what is involved and which upgrade options are available, you can have a look at Lars' notes for Juno to Kilo in http://people.redhat.com/~lkellogg/rhos7-upgrade-docs/ Cheers, Alan