华为云centos服务器安装mysql

step1:下载mysql的源
wget http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm

step2:安装yum库
yum localinstall -y mysql57-community-release-el7-7.noarch.rpm

step3: 安装mysql
yum install -y mysql-community-server
或请更新密钥：rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022

step4:启动MySQL服务
systemctl start mysqld.service

step5:查看mysql的初始密码
grep 'temporary password' /var/log/mysqld.log

step6: 进入mysql
mysql -uroot -p密码

step7: 修改mysql 初始密码
进入mysql 输入
SET PASSWORD = PASSWORD('新密码'); ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER;