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CentOS7 64位下MySQL5.7安装与配置

1、配置YUM源

在MySQL官网中下载YUM源rpm安装包:http://dev.mysql.com/downloads/repo/yum/ 

或者直接在服务器上用wget下载rpm安装包

wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm

2安装mysql源

yum localinstall mysql57-community-release-el7-8.noarch.rpm

3检查mysql源是否安装成功

yum repolist enabled | grep "mysql.*-community.*"
如图所示为安装成功

可以修改vim /etc/yum.repos.d/mysql-community.repo源,改变默认安装的mysql版本。比如要安装5.6版本,将5.7源的enabled=1改成enabled=0。然后再将5.6源的enabled=0改成enabled=1即可。

4安装MySQL

yum install mysql-community-server

5启动MySQL服务

systemctl start mysqld

然后输入如下命令查看服务状态

systemctl status mysqld

6配置开机启动

systemctl enable mysqld
systemctl daemon-reload

7修改root账号本地登录密码

mysql安装完成之后,在/var/log/mysqld.log文件中生成了一个root账号的默认密码。可通过以下命令查看这个密码:

grep 'temporary password' /var/log/mysqld.log

8自定义root账号密码

ALTER USER 'root'@'localhost' IDENTIFIED BY 'NewPass666@'; 

或者

set password for 'root'@'localhost'=password('NewPass666@');

然后输入如下命令即使生效以上操作:

flush privileges;
至此mysql5.7在CentOs7上的安装完成!

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