通过yum方法在centos7上安装mysql 5.7

下载mysql的yum repo rpm文件并安装

wget https://dev.mysql.com/get/mysql80-community-release-el7-4.noarch.rpm
yum localinstall mysql80-community-release-el7-4.noarch.rpm

安装yum-config-manager

yum -y install yum-utils

禁用mysql8.0版本，启用mysql5.7版本

yum-config-manager --disable mysql80-community
yum-config-manager --enable mysql57-community

安装mysql

yum install mysql-community-server

启动mysql服务

service mysqld start

添加到开机启动

systemctl enable mysqld

查看mysql初始密码

grep 'temporary password' /var/log/mysqld.log

修改初始密码

mysql -uroot -p
ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!';