【Linux】红帽7搭建网络YUM源

1、首先查看redhat 7.0系统本身所安装的那些yum 软件包：

[root@linuxprobe ~]# rpm -qa | grep yum
yum-utils-1.1.31-24.el7.noarch
yum-langpacks-0.4.2-3.el7.noarch
yum-metadata-parser-1.1.4-10.el7.x86_64
yum-rhn-plugin-2.0.1-4.el7.noarch
PackageKit-yum-0.8.9-11.el7.x86_64
yum-3.4.3-118.el7.noarch

2、卸载这些软件包；

[root@linuxprobe ~]# rpm -e yum-3.4.3-118.el7.noarch --nodeps
[root@linuxprobe ~]# rpm -e yum-utils-1.1.31-24.el7.noarch --nodeps
[root@linuxprobe ~]# rpm -e yum-rhn-plugin-2.0.1-4.el7.noarch --nodeps
[root@linuxprobe ~]# rpm -e yum-metadata-parser-1.1.4-10.el7.x86_64 --nodeps
[root@linuxprobe ~]# rpm -e yum-langpacks-0.4.2-3.el7.noarch --nodeps
[root@linuxprobe ~]# rpm -e PackageKit-yum-0.8.9-11.el7.x86_64 --nodeps

3、保证本机电脑能上网；

[root@linuxprobe ~]# ping www.baidu.com
PING www.a.shifen.com (61.135.169.121) 56(84) bytes of data.
64 bytes from 61.135.169.121: icmp_seq=1 ttl=53 time=31.8 ms
64 bytes from 61.135.169.121: icmp_seq=2 ttl=53 time=31.9 ms
64 bytes from 61.135.169.121: icmp_seq=3 ttl=53 time=32.0 ms

4、进入以下网站上面查看软件包的版本是否升级或者找到自己系统所对应的文件包版本更新；

网易163网络源地址：http://mirrors.163.com/
CentOS网络源地址：http://centos.ustc.edu.cn/centos/

5、找到自己所需要的版本下载：

[root@Linuxprobe ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-118.el7.centos.noarch.rpm
--2016-01-17 20:43:15--  http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-118.el7.centos.noarch.rpm
Resolving mirrors.163.com (mirrors.163.com)... 123.58.173.185, 123.58.173.186
Connecting to mirrors.163.com (mirrors.163.com)|123.58.173.185|:80... connected.
HTTP request sent, awaiting response... 404 Not Found
2016-01-17 20:43:15 ERROR 404: Not Found.   //如果找不到，是安装包更新了，你可以到这个网站http://mirrors.163.com/centos/7/os/x86_64/Packages/复制下载链接，然后再下载下来；

[root@linuxprobe ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-132.el7.centos.0.1.noarch.rpm
[root@linuxprobe ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
[root@linuxprobe ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-utils-1.1.31-34.el7.noarch.rpm 
[root@linuxprobe ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-updateonboot-1.1.31-34.el7.noarch.rpm
[root@linuxprobe ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpm

6、查看下载完成结果；

[root@linuxprobe ~]# ls
yum-3.4.3-132.el7.centos.0.1.noarch.rpm
yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
yum-plugin-fastestmirror-1.1.31-34.el7.noarch.rpm
yum-updateonboot-1.1.31-34.el7.noarch.rpm
yum-utils-1.1.31-34.el7.noarch.rpm

7、安装软件包：--force --nodeps 解决依赖关系

[root@Linuxprobe ~]# rpm -ivh yum-*
warning: yum-3.4.3-132.el7.centos.0.1.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
1:yum-metadata-parser-1.1.4-10.el7    ################################# [ 20%]
2:yum-plugin-fastestmirror-1.1.31-3   ################################# [ 40%]
3:yum-3.4.3-132.el7.centos.0.1        ################################# [ 60%]
4:yum-updateonboot-1.1.31-34.el7      ################################# [ 80%]
5:yum-utils-1.1.31-34.el7             ################################# [100%]

8、新建repo 配置文件；

[root@linuxprobe ~]# vim /etc/yum.repos.d/CentOS-Base.repo
#CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$7 - Base - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7&arch=$basearch&repo=os
baseurl=http://mirrors.163.com/centos/7/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#released updates
[updates]
name=CentOS-$7 - Updates - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7&arch=$basearch&repo=updates
baseurl=http://mirrors.163.com/centos/7/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$7 - Extras - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$7&arch=$basearch&repo=extras
baseurl=http://mirrors.163.com/centos/7/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$7 - Plus - 163.com
baseurl=http://mirrors.163.com/centos/7/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

9、至此YUM 网络源已经安装完成；

[root@linuxprobe ~]# yum clean all

10、测试安装是否正常；

[root@Linuxprobe ~]# yum -y install lftp
Loaded plugins: fastestmirror, product-id, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package lftp.x86_64 0:4.4.8-7.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================================
Package              Arch                     Version                    Repository               Size
================================================================================================
Installing:
lftp                x86_64                    4.4.8-7.el7                base                     750 k
Transaction Summary
================================================================================================

Install  1 Package
………………省略部分安装过程………………
Installed:
lftp.x86_64 0:4.4.8-7.el7
Complete!