centOS7安装mysql

1、官网下载MySQL安装包：https://dev.mysql.com/downloads/mysql/　　

我选的Archives，下载5.7版本，此处根据自己需要下载即可 

2、解压：

tar -xvf mysql-5.7.30-1.el7.x86_64.rpm-bundle.tar

3、安装前先卸载卸载自带的mariadb-lib

yum remove mysql-libs

4、安装MySQL

rpm -ivh mysql-community-common-5.7.30-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-5.7.30-1.el7.x86_64.rpm 
rpm -ivh mysql-community-client-5.7.30-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-5.7.30-1.el7.x86_64.rpm

5、数据库初始化

mysqld --initialize --user=mysql

6、启动MySQL服务

systemctl start mysqld.service

7、登录MySQL

#查看root密码
cat /var/log/mysqld.log |grep password

 #修改root密码

set password=password('123456');

8、远程访问下MySQL

 9、允许root远程登录

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;
#重启MySQL服务
systemctl restart mysqld

再用远程访问连接下MySQL，成功了！