tar.gz一般是源码,需要解压后编译安装,不能用YUM装
CentOS 7的yum源中貌似没有正常安装mysql时的mysql-sever文件,需要去官网上下载
wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
rpm -ivh mysql-community-release-el7-5.noarch.rpm
yum install mysql-community-server
成功安装之后重启mysql服务# service mysqld restart
初次安装mysql是root账户是没有密码的
设置密码的方法
mysql -uroot
mysql> set password for ‘root’@‘localhost’ = password('mypasswd');
mysql> exit