1下载官方gz安装包

2解压

3移动目录 mv mysql-8.0.27-linux-glibc2.12-x86_64 /usr/local/mysql

4创建用户 useradd -s  /sbin/nologin -M mysql 

5初始化mysql ./mysqld --initialize --user=mysql

6记下密码

7连接到开机启动 

cp ../support-files/mysql.server /etc/init.d/mysqld 

ln -s /usr/local/mysql/bin/mysql /usr/bin/mysql

8安装系统库 libtinfo.so.5   yum install libncurses*

9启动mysql  service mysqld start

10登录 ./mysql -uroot -p

11修改密码 alter user 'root'@'localhost' identified by 'password';

12开启远程连接

mysql>use mysql;
msyql>update user set user.Host='%' where user.User='root';
mysql>flush privileges;