contos系统mysql安装

• 下载rpm安装文件

wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm

• 安装rpm文件

rpm -ivh mysql-community-release-el7-5.noarch.rpm

• 安装mysql-server

sudo yum install mysql-server

• 启动mysql服务

service mysqld restart

• 登录root账号

mysql -u root　

• 切换到mysql数据库

use mysql;

• 更新密码

update user set password=password('new password') where user='root';

• 刷新生效

flush privileges;