Step1: 检测系统是否自带安装mysql
# yum list installed | grep mysql
Step2: 删除系统自带的mysql及其依赖命令：
# yum -y remove mysql-libs.x86_64
Step3: 给CentOS添加rpm源，并且选择较新的源命令：
# wget dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm # yum localinstall mysql-community-release-el6-5.noarch.rpm # yum repolist all | grep mysql # yum-config-manager --disable mysql55-community # yum-config-manager --disable mysql56-community # yum-config-manager --enable mysql57-community-dmr # yum repolist enabled | grep mysql
Step4:安装mysql 服务器命令：
# yum install mysql-community-server
Step5: 启动mysql命令:
# service mysqld start
Step6: 查看mysql是否自启动,并且设置开启自启动命令:
# chkconfig --list | grep mysqld# chkconfig mysqld on
Step7: mysql安全设置命令：
# mysql_secure_installation
参考相关文档地址:
http://www.rackspace.com/know...
http://dev.mysql.com/doc/refm...
http://www.cnblogs.com/xiaolu...
注：如果重装启动失败：删除 /var/lib/mysql 下的文件 重新初始化
删除/var/lib/MySQL下的三个文件；
然后使用如下命令，重新初始化mysql
mysqld --initialize --user=mysql
文章出处：https://segmentfault.com/a/1190000003049498
