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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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