官网地址

https://dev.mysql.com/downloads/repo/yum/

可以在以上地址选择想要的版本将下面的链接后面部分替换

替换地址

wget http://repo.mysql.com/mysql80-community-release-el7-3.noarch.rpm
rpm -ivh mysql80-community-release-el7-3.noarch.rpm
yum update

安装

yum install mysql-server

初始化

mysqld --initialize

权限设置

chown mysql:mysql -R /var/lib/mysql

启动mysql

systemctl start mysqld
systemctl enable mysqld
systemctl status mysqld

查看mysql8安装后的初始密码

grep "A temporary password" /var/log/mysql/mysqld.log

登录mysql

mysql -u root

刷新权限

flush privileges;

修改密码

alter user 'root'@'localhost'IDENTIFIED BY '你的新密码，大写小写符号组合';