更新系统包
sudo yum update -y
导入密钥，防止 Error: GPG check FAILED
rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2023
安装MySQL仓库
sudo yum install -y https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
安装MySQL服务器
sudo yum install -y mysql-community-server
启动MySQL服务
sudo systemctl start mysqld
设置MySQL开机自启动
sudo systemctl enable mysqld
查找临时生成的root密码
grep 'temporary password' /var/log/mysqld.log
根据提示设置新密码并进行安全配置
sudo mysql_secure_installation