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下面讲讲关于centos 6.9 下rpm方式如何安装MySQL，文字的奥妙在于贴近主题相关。所以，闲话就不谈了，我们直接看下文吧，相信看完centos 6.9 下rpm方式如何安装mysql这篇文章你一定会有所受益。
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在centos 6.9 上rpm安装mysql
环境：
Linux:CentOS release 6.9 64bit
MySQL: mysq-5.7.18
1、在/home创建mysql目录，下载如下四个软件包
http://mirrors.sohu.com/mysql/MySQL-5.7/
wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-community-client-5.7.18-1.el6.x86_64.rpm
wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-community-common-5.7.18-1.el6.x86_64.rpm
wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-community-libs-5.7.18-1.el6.x86_64.rpm
wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-community-server-5.7.18-1.el6.x86_64.rpm
2、检查mysql rpm相关的包是否安装并去除
[root@centos-6 mysql]# rpm -qa | grep -i mysql
mysql-libs-5.1.73-8.el6_8.x86_64
[root@centos-6 mysql]# rpm -e mysql-libs-5.1.73-8.el6_8.x86_64
error: Failed dependencies:
libmysqlclient.so.16()(64bit) is needed by (installed) postfix-2:2.6.6-8.el6.x86_64
libmysqlclient.so.16(libmysqlclient_16)(64bit) is needed by (installed) postfix-2:2.6.6-8.el6.x86_64
mysql-libs is needed by (installed) postfix-2:2.6.6-8.el6.x86_64
[root@centos-6 mysql]#
将依赖包一并删除
[root@centos-6 mysql]# yum remove -y mysql-libs
再次查询是否删除干净
[root@centos-6 mysql]# rpm -qa | grep -i mysql
[root@centos-6 mysql]#
3、同时安装这四个rpm包
rpm -ivh mysql-community-client-5.7.18-1.el6.x86_64.rpm mysql-community-common-5.7.18-1.el6.x86_64.rpm mysql-community-libs-5.7.18-1.el6.x86_64.rpm mysql-community-server-5.7.18-1.el6.x86_64.rpm
4、出现缺少依赖包解决方式
[root@centos-6 home]# rpm -ivh mysql-community-client-5.7.18-1.el6.x86_64.rpm mysql-community-common-5.7.18-1.el6.x86_64.rpm mysql-community-libs-5.7.18-1.el6.x86_64.rpm mysql-community-server-5.7.18-1.el6.x86_64.rpm
warning: mysql-community-client-5.7.18-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
libnuma.so.1()(64bit) is needed by mysql-community-server-5.7.18-1.el6.x86_64
libnuma.so.1(libnuma_1.1)(64bit) is needed by mysql-community-server-5.7.18-1.el6.x86_64
libnuma.so.1(libnuma_1.2)(64bit) is needed by mysql-community-server-5.7.18-1.el6.x86_64
[root@centos-6 home]# yum install -y numactl
5、密码获取
第一次通过#grep "password" /var/log/mysqld.log 命令获取MySQL的临时密码
用该密码登录到服务端后，必须马上修改密码，不然操作查询时报错误
刚开始设置的密码必须符合长度，且必须含有数字，小写或大写字母，特殊字符。
如果想设置简单密码，如下操作：
首先，修改validate_password_policy参数的值
mysql> set global validate_password_policy=0; #定义复杂度
mysql> set global validate_password_length=1; #定义长度 默认是8
mysql>set password for 'root'@'localhost'=password('123456'); #设置root密码为123456
mysql> flush privileges;#刷新权限使配置生效
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