Centos 下安装 mysql

最好在 su 下运行

• 安装wget

  yum -y install wget
  

• 设置mysql 官方仓库

  wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
yum -y install mysql57-community-release-el7-10.noarch.rpm
  

• 开始安装MySql

  yum install mysql-server
  这个要执行较长时间
  
  如果遇到报错

 Failing package is: mysql-community-common-5.7.42-1.el7.x86_64
 GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

执行rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022 再安装
参考：https://blog.youkuaiyun.com/best_dayc_cm/article/details/130804959

至此安装完成

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• 启动并查看状态

  systemctl start mysqld.service
systemctl status mysqld.service
  

修改密码

AlTER USER 'root'@'localhost' IDENTIFIED BY '123456';