Comments - CentOS 5.x/6.x mysql-lib conflicts and postfix

This problem still exists with 5.5 on a CentOS 6 machine

[root@vmtest ~]# mysqladmin ver                                                                            
mysqladmin  Ver 9.0 Distrib 5.5.28a-MariaDB, for Linux on i686                                                       
Copyright (c) 2000, 2012, Oracle, Monty Program Ab and others.                                                       
                                                                                                                     
Server version          5.5.28a-MariaDB                                                                              
Protocol version        10                                                                                           
Connection              Localhost via UNIX socket                                                                    
UNIX socket             /var/lib/mysql/mysql.sock                                                                    
Uptime:                 18 min 37 sec                                                                                
                                                                                                                     
Threads: 1  Questions: 2  Slow queries: 0  Opens: 33  Flush tables: 1  Open tables: 26  Queries per second avg: 0.001

[root@vmtest ~]# yum install postfix                                                                                   
Loaded plugins: fastestmirror, security                                                                                
Loading mirror speeds from cached hostfile                                                                             
 * base: centos.mirror.balt.rackd.net                                                                                  
 * extras: mirror.symnds.com                                                                                           
 * updates: centos.mirror.balt.rackd.net                                                                               
Setting up Install Process                                                                                             
Resolving Dependencies                                                                                                 
--> Running transaction check                                                                                          
---> Package postfix.x86_64 2:2.6.6-2.2.el6_1 will be installed                                                        
--> Processing Dependency: libmysqlclient.so.16(libmysqlclient_16)(64bit) for package: 2:postfix-2.6.6-2.2.el6_1.x86_64
--> Processing Dependency: libmysqlclient.so.16()(64bit) for package: 2:postfix-2.6.6-2.2.el6_1.x86_64                 
--> Finished Dependency Resolution                                                                                     
Error: Package: 2:postfix-2.6.6-2.2.el6_1.x86_64 (base)                                                                
           Requires: libmysqlclient.so.16(libmysqlclient_16)(64bit)                                                    
           Available: mysql-libs-5.1.61-4.el6.x86_64 (base)                                                            
               libmysqlclient.so.16(libmysqlclient_16)(64bit)                                                          
           Available: mysql-libs-5.1.66-1.el6_3.x86_64 (updates)                                                       
               libmysqlclient.so.16(libmysqlclient_16)(64bit)                                                          
           Available: mysql-libs-5.1.66-2.el6_3.x86_64 (updates)                                                       
               libmysqlclient.so.16(libmysqlclient_16)(64bit)                                                          
Error: Package: 2:postfix-2.6.6-2.2.el6_1.x86_64 (base)                                                                
           Requires: libmysqlclient.so.16()(64bit)                                                                     
           Available: mysql-libs-5.1.61-4.el6.x86_64 (base)                                                            
               libmysqlclient.so.16()(64bit)                                                                           
           Available: mysql-libs-5.1.66-1.el6_3.x86_64 (updates)                                                       
               libmysqlclient.so.16()(64bit)                                                                           
           Available: mysql-libs-5.1.66-2.el6_3.x86_64 (updates)                                                       
               libmysqlclient.so.16()(64bit)                                                                           
 You could try using --skip-broken to work around the problem                                                          
 You could try running: rpm -Va --nofiles --nodigest                                                                   
     

did you install MariaDB-compat ?

i.e.

yum -q -y install MariaDB-client MariaDB-common MariaDB-compat MariaDB-devel MariaDB-server MariaDB-shared

Yes I have

[root@vmtest lib]# yum list  MariaDB-client MariaDB-common MariaDB-compat MariaDB-devel MariaDB-server MariaDB-shared
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
 * base: mirrors.xmission.com
 * extras: mirrors.cat.pdx.edu
 * updates: mirror.hmc.edu
Installed Packages
MariaDB-client.i686                                         5.5.28a-1                                          @mariadb
MariaDB-common.i686                                         5.5.28a-1                                          @mariadb
MariaDB-compat.i686                                         5.5.28a-1                                          @mariadb
MariaDB-devel.i686                                          5.5.28a-1                                          @mariadb
MariaDB-server.i686                                         5.5.28a-1                                          @mariadb
MariaDB-shared.i686                                         5.5.28a-1                                          @mariadb
[root@vmtest lib]#