基于Linux安装Mysql5.7

rpm -qa | grep mysql

如下图,没有显示任何结果,则代表之前系统没有装过mysql

wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm

如果报错: -bash: wget: 未找到命令，则安装插件

  yum -y install wget

sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm

sudo yum install mysql-server

下载的快的话,基本半分钟内就能安装完

mysql -u root

可能会如下报错： ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) 原因：原因是/var/lib/mysql的访问权限问题。

chown root /var/lib/mysql/

service mysqld restart

mysql -u root
use mysql;
update user set password=password('123456') where user='root';
exit;

接着继续重启MySQL服务

service mysqld restart

 mysql -u root -p
GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "root";

service mysqld restart

systemctl stop firewalld.service