[root@localhost ~]# yum install mysql-server
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
 * base: centose5.centos.org
 * extras: centosp3.centos.org
 * updates: centosr4.centos.org
 * webtatic: nl.repo.webtatic.com
Setting up Install Process
Package php-mysql-5.3.3-27.el6_5.1.x86_64 already installed and latest version
Resolving Dependencies
--> Running transaction check
---> Package mysql.x86_64 0:5.1.73-3.el6_5 will be installed
---> Package mysql-server.x86_64 0:5.1.73-3.el6_5 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

===================================================================================
 Package              Arch           Version                 Repository       Size
===================================================================================
Installing:
 mysql                x86_64         5.1.73-3.el6_5          updates         894 k
 mysql-server         x86_64         5.1.73-3.el6_5          updates         8.6 M

Transaction Summary
===================================================================================
Install       2 Package(s)

Total size: 9.5 M
Installed size: 27 M
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test


Transaction Check Error:
  file /usr/share/man/man1/msql2mysql.1.gz from install of mysql-server-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysqlbinlog.1.gz from install of mysql-server-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysqlcheck.1.gz from install of mysql-server-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysqlimport.1.gz from install of mysql-server-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysql from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/msql2mysql from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysql_find_rows from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysql_waitpid from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysqlaccess from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysqladmin from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysqlbinlog from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysqlcheck from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysqldump from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysqlimport from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysqlshow from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysqlslap from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysql.1.gz from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysql_find_rows.1.gz from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysql_waitpid.1.gz from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysqlaccess.1.gz from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysqladmin.1.gz from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysqldump.1.gz from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysqlshow.1.gz from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysqlslap.1.gz from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-client-5.5.37-1.cp1136.x86_64
  file /usr/bin/mysql_config from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-devel-5.5.37-1.cp1136.x86_64
  file /usr/share/man/man1/mysql_config.1.gz from install of mysql-5.1.73-3.el6_5.x86_64 conflicts with file from package MySQL55-devel-5.5.37-1.cp1136.x86_64

Error Summary
-------------

[root@localhost ~]#