rpm -qa|grep mariadb #查找mariadb的相关依赖node
rpm --nodeps -e mariadb-libs-5.5.52-1.el7.x86_64 #删除mariadb的相关依赖mysql
yum install mysql-community-common-5.7.16-1.el7.x86_64.rpmsql
yum install mysql-community-libs-5.7.16-1.el7.x86_64.rpmspa
yum install mysql-community-client-5.7.16-1.el7.x86_64.rpm.net
yum install mysql-community-server-5.7.16-1.el7.x86_64.rpmserver
yum install mysql-community-devel-5.7.16-1.el7.x86_64.rpmget
systemctl start mysqld #启动mysql服务it
systemctl enable mysqldmariadb
vi /var/log/mysqld.log #找到 [Note] A temporary password is generated for root@localhost: xxx(这一行中root@localhost:后面的就是root的初始密码)class
mysql -uroot -p #登录mysql
SET PASSWORD = PASSWORD('youpassword'); #修改密码
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'youpassword' WITH GRANT OPTION; #受权远程访问
FLUSH PRIVILEGES;