yum update

mysql

Transaction Check Error:
file /etc/my.cnf from install of mysql-5.0.95-1.el5_7.1.i386 conflicts with file from package mysql-libs-5.0.92-1.el5.i386
file /usr/lib/mysql/libmysqlclient.so.15.0.0 from install of mysql-5.0.95-1.el5_7.1.i386 conflicts with file from package mysql-libs-5.0.92-1.el5.i386
file /usr/lib/mysql/libmysqlclient_r.so.15.0.0 from install of mysql-5.0.95-1.el5_7.1.i386 conflicts with file from package mysql-libs-5.0.92-1.el5.i386

делаем так:

rpm -e mysql-libs —nodeps

yum update