Centos用yum升级mysql到(5.5.37)

原文：http://www.if-not-true-then-false.com/2010/install-mysql-on-fedora-centos-red-hat-rhel/

1. Change root user

su -
## OR ##
sudo -i

2. Install Remi repository

## CentOS 6 and Red Hat (RHEL) 6 ##
rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm

3. Check Available MySQL versions

yum --enablerepo=remi,remi-test list mysql mysql-server

Output:

Loaded plugins: changelog, fastestmirror, presto, refresh-packagekit
...
remi                                                            | 3.0 kB     00:00     
remi/primary_db                                                 | 106 kB     00:00     
Available Packages
mysql.i686                               5.5.37-1.fc18.remi                        @remi
mysql-server.i686                        5.5.37-1.fc18.remi                        @remi

4. Update or Install MySQL 5.5.37

yum --enablerepo=remi install mysql mysql-server

5. Start MySQL server and autostart MySQL on boot

/etc/init.d/mysqld start ## use restart after update
## OR ##
service mysqld start ## use restart after update
 
chkconfig --levels 235 mysqld on

6. MySQL Secure Installation

/usr/bin/mysql_secure_installation

7. Connect to MySQL database (localhost) with password

mysql -u root -p
 
## OR ##
mysql -h localhost -u root -p

8. Create Database, Create MySQL User and Enable Remote Connections to MySQL Database

## CREATE DATABASE ##
mysql> CREATE DATABASE webdb;
 
## CREATE USER ##
mysql> CREATE USER 'webdb_user'@'10.0.15.25' IDENTIFIED BY 'password123';
 
## GRANT PERMISSIONS ##
mysql> GRANT ALL ON webdb.* TO 'webdb_user'@'10.0.15.25';
 
##  FLUSH PRIVILEGES, Tell the server TO reload the GRANT TABLES  ##
mysql> FLUSH PRIVILEGES;