所需要的yum的rpm包：
推薦安裝網址：
1.http://blog.csdn.net/eddy_chan/article/details/54728385
2.http://blog.csdn.net/jb19900111/article/details/50700042
進入網站下在所需的包 http://mirrors.163.com/centos/7/os/x86_64/Packages/
所需的包的及版本如下
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
python-iniparse-0.4-9.el7.noarch.rpm安裝步驟：
1.查看自帶的yum:rpm -qa |grep yum
2.卸載自帶的yum:rpm -e .... --nodeps
3.查看並卸載自帶的python-urlgrabber : rpm -qa | grep python-urlgrabber
4.卸載：rpm -e ... --nodeps
5.安裝python:rpm -ivh python-urlgrabber-3.10-8.el7.noarch.rpm 下圖表示安裝成功
6.安裝其他的rpm ： rpm -ivh yum-*
7.配置yum源數據：
-
cd /etc/yum.repos.d/
-
在 /etc/yum.repos.d/下創建一個repo結尾的文件(名稱沒關係)
-
編輯vi /etc/yum.repos.d/xiao.repo
- 添加以下內容內容:
[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-78.yum clean all 清除原有緩存
9.yum makecache 獲取yum列表(需要網絡)
10.yum repolist可以查看源數據,出現下圖代表成功
