CentOS6.5系统下RPM包安装MySQL5.6

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查看下是否有系统自带mysql的rpm包，如果有，需要删除自带的旧rpm包。
[root@linuxidc ~]# rpm -qa | grep mysql
mysql-libs-5.1.71-1.el6.x86_64
[root@linuxidc ~]# yum -y remove mysql-libs-5.1*
[root@linuxidc ~]# rpm -qa | grep mysql

[root@linuxidc ~]#

在MySQL官网下载安装MySQL-5.6.21所需的rpm软件包。
需要下载三个rpm软件包：
MySQL-client-5.6.21-1.rhel5.x86_64.rpm
MySQL-devel-5.6.21-1.rhel5.x86_64.rpm
MySQL-server-5.6.21-1.rhel5.x86_64.rpm

下载完之后，安装三个rpm软件包。
[root@linuxidc tools]# rpm -ivh MySQL-server-5.6.21-1.rhel5.x86_64.rpm
error: Failed dependencies:
libaio.so.1()(64bit) is needed by MySQL-server-5.6.21-1.rhel5.x86_64
libaio.so.1(LIBAIO_0.1)(64bit) is needed by MySQL-server-5.6.21-1.rhel5.x86_64
libaio.so.1(LIBAIO_0.4)(64bit) is needed by MySQL-server-5.6.21-1.rhel5.x86_64
安装MySQL-server报错，原因是没有安装libaio，系统缺少libaio.so此软件包，下边yum安装一下libaio.so软件包。
[root@linuxidc tools]# yum install -y libaio
[root@linuxidc tools]# rpm -ivh MySQL-server-5.6.21-1.rhel5.x86_64.rpm
[root@linuxidc tools]# rpm -ivh MySQL-client-5.6.21-1.rhel5.x86_64.rpm
Preparing... ########################################### [100%]
1:MySQL-client ########################################### [100%]
[root@linuxidc tools]# rpm -ivh MySQL-devel-5.6.21-1.rhel5.x86_64.rpm
Preparing... ########################################### [100%]
1:MySQL-devel ########################################### [100%]

6.修改配置文件位置。
[root@linuxidc tools]# cp /usr/share/mysql/my-default.cnf /etc/my.cnf

初始化MySQL及修改MySQL默认的root密码。
[root@linuxidc tools]# /usr/bin/mysql_install_db

[root@linuxidc tools]# more /root/.mysql_secret
# The random password set for the root user at Thu Apr 9 14:43:59 2015 (local time): F6K3v_xggFoLQeiN

[root@linuxidc tools]# mysql -uroot -pF6K3v_xggFoLQeiN
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.21

mysql> SET PASSWORD = PASSWORD('123.com');
mysql> exit
Bye
[root@linuxidc tools]# mysql -uroot -p123.com
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 6
Server version: 5.6.21 MySQL Community Server (GPL)

设置MySQL服务开机自启动。
[root@linuxidc tools]# chkconfig mysql on

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