A new question has been posted to the Knowledgebase: http://kb.askmonty.org/en/centos-5x6x-mysql-lib-conflicts-and-postfix ======================================================================= On a fresh CentOS 5.x/6.x 32bit or 64bit install, mysql 5.0.xx is installed. To install MariaDB 5.2.x rpms, mysql-lib needs to be removed for MariaDB-server to be installed. But removing mysql-lib via yum remove, removes postfix. If later you need to install postfix via yum it still requires mysql-lib, but installing mysql-lib installs mysql 5.0.x server again. yum install postfix Loaded plugins: fastestmirror, refresh-packagekit Loading mirror speeds from cached hostfile * base: mirror.averse.net * extras: mirror.averse.net * rpmforge: apt.sw.be * updates: mirror.averse.net Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package postfix.x86_64 2:2.6.6-2.1.el6_0 set to be updated --> Processing Dependency: mysql-libs for package: 2:postfix-2.6.6-2.1.el6_0.x86_64 --> Finished Dependency Resolution Error: Package: 2:postfix-2.6.6-2.1.el6_0.x86_64 (updates) Requires: mysql-libs You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest Anyway to properly resolve this ? with MariaDB 5.2/5.3.x version of mysql-lib ?? ======================================================================= Thanks. -- Daniel Bartholomew MariaDB - http://mariadb.org Monty Program - http://montyprogram.com AskMonty Knowledgebase - http://kb.askmonty.org