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安装包
官网下载
https://dev.mysql.com/downloads/mysql/5.7.html#downloads
下载四个rpm包
安装mysql
注意!!注意!!安装顺序不可更改
1、安装依赖
rpm -ivh mysql-community-common-5.7.28-1.el7.x86_64.rpm
2、安装libs
rpm -ivh mysql-community-libs-5.7.28-1.el7.x86_64.rpm
3、安装客户端
rpm -ivh mysql-community-client-5.7.28-1.el7.x86_64.rpm
4、安装服务
rpm -ivh mysql-community-server-5.7.28-1.el7.x86_64.rpm
5、查看mysql服务是否开启,没有则开启
systemctl status mysqld
mysql服务未开启
开启mysql服务
systemctl start mysqld
将mysql服务设为开机自启
systemctl enable mysqld
systemctl status mysqld
6、查找临时密码登录
grep 'temporary password' /var/log/mysqld.log
root@localhost:后面就是临时密码
若执行命令后,找不到临时密码
(1)、先删掉/var/lib/mysql==
rm -rf /var/lib/mysql
(2)、重启mysql服务
systemctl restart mysqld
在去获取临时密码即可
7、登录mysql
mysql -uroot -p4Qi8XZXq7l/4
8、进入后修改密码
set password=password('new your password');
若修改密码报错
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
是因为你的密码太简单
1、设置密码验证强度
set global validate_password_policy=LOW;
2、设置密码长度为 6,默认8位(若你设密码超过8位可不修改)
set global validate_password_length=6;
然后重新设置密码就不会报错啦!