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