下载mysql源安装包

  1. wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm

安装mysql源

  1. yum localinstall mysql57-community-release-el7-8.noarch.rpm

检测是否安装完成

  1. yum repolist enabled | grep "mysql.*-community.*"

安装mysql

  1. yum install mysql-community-server

设置开启启动mysql服务

  1. systemctl enable mysqld

查看安装的mysql版本

  1. rpm -aq | grep -i mysql

启动MySQL服务

  1. systemctl restart mysqld

查看MySQL初始密码

  1. grep password /var/log/mysqld.log

更改MySQL密码

  1. mysqladmin -u root -p'旧密码' password '新密码'
  2. 或者下面这样，二选一
  3. alter user 'root'@'localhost' identified by '.DhtciCJ?3rg' # 这里用刚刚到随机初始密码