下载rpm安装包
Mysql官网：https://dev.mysql.com/downloads/mysql/
选择版本下载：
可以使用wget命令下载：
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[root@localhost opt]#wget https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.20-1.el6.x86_64.rpm-bundle.tar
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注意RedHat的版本和系统位数。
查看依赖的库
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[root@localhost opt]# yum search libaio
[root@localhost opt]# yum install libaio
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查看系统之前是否有安装过mysql相关版本
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[root@localhost opt]# rpm -qa | grep mysql
[root@localhost opt]# rpm -qa | grep mariadb
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有则删除，有几个删除几个
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[root@localhost opt]# rpm -e mariadb-libs-5.5.44-2.el7.x86_64 --nodeps
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安装
按照顺序安装软件包
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[root@localhost opt]# rpm -ivh mysql-community-common-5.7.20-1.el6.x86_64.rpm
[root@localhost opt]# rpm -ivh mysql-community-libs-5.7.20-1.el6.x86_64.rpm
[root@localhost opt]# rpm -ivh mysql-community-client-5.7.20-1.el6.x86_64.rpm
[root@localhost opt]# rpm -ivh mysql-community-server-5.7.19-1.el7.x86_64.rpm
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创建mysql用户和用户组
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[root@localhost /]# groupadd mysql
[root@localhost /]# useradd -r -g mysql -s /bin/false mysql
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创建mysql数据存放目录
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[root@localhost /]# mkdir -p /data/mysql
[root@localhost /]# chown mysql.mysql /data/mysql
[root@localhost /]# ll -d /data/mysql/
drwxr-xr-x. 2 mysql mysql 6 9月 17 17:37 /data/mysql/
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修改/etc/my.cnf配置文件
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[mysqld]
init-connect='SET NAMES utf8mb4'
default-storage-engine=INNODB
character-set-server=utf8mb4
datadir=/data/mysql
socket=/var/lib/mysql/mysql.sock
assorted security risks
symbolic-links=0
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
validate_password=off
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
lower_case_table_names=1
[mysql]
default-character-set = utf8mb4
[client]
default-character-set = utf8mb4
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初始化mysql
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[root@localhost /]# /usr/sbin/mysqld --initialize --user=mysql
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查看初始化密码
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[root@localhost /]# grep "root@localhost" /var/log/mysqld.log
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登录mysql并修改密码
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mysql> set password = password('123456');
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允许远程访问（不推荐）
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mysql> use mysql;
mysql> select host,user,password from user;
mysql> update user set password=password('xxxxxx') where user='root';
mysql> update user set host='%' where user='root' and host='localhost';
mysql> flush privileges;
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总结
以上所述是小编给大家介绍的RedHat6.5/CentOS6.5安装Mysql5.7.20的教程详解，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！
原文链接：http://blog.csdn.net/wheat_ground/article/details/78479367