centos7下mysql5.7的安装
wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
如果没有wget 则安装一下: yum -y install wget
安装mysql源包 #yum localinstall mysql57-community-release-el7-8.noarch.rpm
检查mysql源是否安装成功
# yum repolist enabled | grep "mysql.*-community.*"
看到下图(三个)表示成功:
mysql-connectors-community MySQL Connectors Community 36
mysql-tools-community MySQL Tools Community 47
mysql57-community MySQL5.7 Community Server 189
安装MySQL服务
# yum install mysql-community-server
启动MySQL服务
# systemctl start mysqld
查看MySQL的启动状态 # systemctl status mysqld 设置开机启动 # systemctl enable mysqld # systemctl daemon-reload #重新载入 查看root默认密码 # grep 'temporary password' /var/log/mysqld.log 修改root密码 # mysql -uroot -p mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'Abc1234!'; 或者 mysql> set password for'root'@'localhost'=password('Abc1234!');
这时,报了错:
注意:mysql5.7默认安装了密码安全检查插件(validate_password),默认密码检查策略要求密码必须包含:大小写字母、数字和特殊符号,并且长度不能少于8位。否则会提示ERROR 1819 (HY000): Your passworddoes not satisfy the current policy requirements错误
处理方法:set global validate_password_policy=4; 设置密码长度为4,这里可以根据自己的需要设置长度。
然后: set password for'root'@'localhost'=password('root');
好了,密码初始化完成。
关闭防火墙:
systemctl stop firewalld.service
重启mysql服务
# systemctl restart mysqld
好了,用你的Navicat连接试试吧。