root@server [/tmp]# yum install mysql* --skip-broken
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirror.highspeedweb.net
 * centosplus: ftp.usf.edu
 * epel: serverbeach1.fedoraproject.org
 * extras: mirror.metrocast.net
 * rpmforge: apt.sw.be
 * updates: centos.omnispring.com
Excluding Packages in global exclude list
Finished
Excluding Packages from CentOS-5 - Base
Finished
Reducing CentOS-5 - Plus to included packages only
Finished
Excluding Packages from CentOS-5 - Updates
Finished
Setting up Install Process
Examining mysql-5.0.77-4.el5_6.6.x86_64.rpm: mysql-5.0.77-4.el5_6.6.x86_64
No package mysql-5.0.77-4.SEL5_5.2.x86_64.rpm.html available.
No package mysql.sock available.
Nothing to do