16.12.2016, 13:19, "Gianluca Cecchi" <gianluca.cecchi@gmail.com>:On Fri, Dec 16, 2016 at 6:44 AM, Николаев Алексей <alexeynikolaev.post@yandex.ru> wrote:Hi, community!15.12.2016, 20:16, "Yaniv Dary" <ydary@redhat.com>:It may work, but we don't support 3.6 for a while and I'm not sure what issues you may encounter.We are using oVirt engine 3.6. How can I prevent upgrade my hosts with CentOS 7.2 to unsupported 7.3? Thx.I would do this wayyum clean allmodify your repo fies in /etc/yum.repos.d- verify CentOS-CR is disabled- at least inCentOS-Base.repowhere you don't have "enabled=0" (so both where there is no enabled=.. line and where enabled=1)comment mirrorlist and uncomment baseurlin baseurl line substitute the word$releaseverwith7.2.1511try a yum update and verify that no 7.3 packages come in.The problem is that epel repo don't track minor versions, so that if you have an update in epel that requires a 7.3 package you would get dependency error.or you can disable also epel in the mean time if this is the case....HIH,GianlucaWell, I remember that ovirt-engine uses some yum plugin to lock pkgs versions. And i found this plugin - yum-plugin-versionlock. I will try it to lock vdsm version.