安装
下载mysql5.7rpm包
wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
安装mysql rpm包
rpm -ivh mysql80-community-release-el7-3.noarch.rpm
安装命令工具(直接修改mysql安装版本)
yum -y install yum-utils
启用mysql5.7，禁用8.0版本
yum-config-manager --enable mysql57-community
yum-config-manager --disable mysql80-community
yum install -y mysql-community-server
设置开机自启
systemctl start mysqld
systemctl enable mysqld
修改密码
grep password /var/log/mysqld.log 过滤密码
mysqladmin -uroot -p’旧密码’ password ‘新密码’
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