yum --enablerepo=remi update mysql

warning: /etc/my.cnf created as /etc/my.cnf.rpmnew
  Updating       : mysql-server                                                                                                                                                          5/7
  Cleanup        : mysql-server                                                                                                                                                          6/7
  Cleanup        : mysql                                                                                                                                                                 7/7

Dependency Installed:
  libaio.x86_64 0:0.3.106-5                            mysql-libs.x86_64 0:5.5.28-1.el5.remi                            mysqlclient15.x86_64 0:5.0.67-1.el5.remi

Updated:
  mysql.x86_64 0:5.5.28-1.el5.remi

Dependency Updated:
  mysql-server.x86_64 0:5.5.28-1.el5.remi
Complete!

[mysqld]

query_cache_type=1
query_cache_size=32M
query_cache_limit=1M

local-infile=0
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1
skip-networking

# Disabling symbolic-links is recommended to prevent assorted security risks;
# to do so, uncomment this line:
# symbolic-links=0

skip-bdb

innodb_buffer_pool_size=2M
innodb_additional_mem_pool_size=500K
innodb_log_buffer_size=500K
innodb_thread_concurrency=2
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
skip-bdb

innodb_buffer_pool_size=2M
innodb_additional_mem_pool_size=500K
innodb_log_buffer_size=500K
innodb_thread_concurrency=2

[mysqld]
# Settings user and group are ignored when systemd is used (fedora >= 15).
# If you need to run mysqld under different user or group,
# customize your systemd unit file for mysqld according to the
# instructions in 
user=mysql

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

# Semisynchronous Replication

# uncomment next line on MASTER
;plugin-load=rpl_semi_sync_master=semisync_master.so
# uncomment next line on SLAVE
;plugin-load=rpl_semi_sync_slave=semisync_slave.so

# Others options for Semisynchronous Replication
;rpl_semi_sync_master_enabled=1
;rpl_semi_sync_master_timeout=10
;rpl_semi_sync_slave_enabled=1


;performance_schema


[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid