原文网址：https://www.youyong.top/article/1159265244393
本次安装才用yum安装
原文网址：https://www.youyong.top/article/1159265244393
1、检测系统是否自带安装mysql
yum list installed | grep mysql
2、删除系统自带的mysql及其依赖
yum -y remove mysql-libs.x86_64
3、给CentOS添加rpm源，并且选择较新的源
wget dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpmyum localinstall mysql-community-release-el6-5.noarch.rpmyum repolist all | grep mysqlyum-config-manager --disable mysql55-communityyum-config-manager --disable mysql56-communityyum-config-manager --enable mysql57-community-dmryum repolist enabled | grep mysql
4、安装mysql 服务器
yum install mysql-community-server
5、给mysql数据目录赋权
chown -R mysql.mysql mysqldata
6、启动mysql
service mysqld start
7、查看mysql是否自启动,并且设置开启自启动
chkconfig --list | grep mysqld
chkconfig mysqld on
8、mysql安全设置mysql_secure_installation，防火墙允许3306端口访问
9、进入mysql，修改mysql root密码
