下載MySQL 安裝包 https://dev.mysql.com/downloads

安裝  rpm -ivh 包名

默認配置 /etc/my.cnf

初始化mysql   

mysqld --initialize --user=mysql --console

安裝完密碼默認存放在  /var/log/mysqld.log

 修改root密碼

alter user 'root'@'localhost' identified by '123456';

mysql 8修改遠程可登錄

 CREATE USER 'root'@'%' IDENTIFIED BY 'root';

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;

啟動mysql 

service mysqld start