参考：https://www.digitalocean.com/community/tutorials/how-to-install-mysql-on-centos-7
1.获取rpm
wget https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm
2.安装rpm
sudo rpm -ivh mysql80-community-release-el7-1.noarch.rpm
3.安装mysql
sudo yum install mysql-server
4.修改配置文件
sudo vi /etc/my.cnf
- 添加下面1行
[mysqld]
innodb_buffer_pool_size=64M ##新添加
6.启动mysql
sudo systemctl start mysqld
7.查看运行状态
sudo systemctl status mysqld
8.查看初始密码：
sudo grep 'temporary password' /var/log/mysqld.log
9.修改初始密码(必须包含数字，大小写字母个一个特殊字符)：
sudo mysql_secure_installation
10.登陆：
mysql -u root -p
