Redhat6.7配置鏡像源

redhat自帶的鏡像源是用不了的，需要切換成CentOS的yum源，我切換成了網易的yum源。

1. 卸載Redhat自帶的yum，需要root權限

rpm -qa|grep yum|xargs rpm -e --nodeps
rpm -aq|grep python-iniparse|xargs rpm -e --nodeps

2. 刪除Redhat yum源，把/etc/yum.repos.d 裏邊的內容全刪了

cd /etc/yum.repos.d
rm -rf *

3. 下載yum包，最好是先下載，再集中安裝

wget http://mirrors.163.com/centos/6/os/x86_64/Packages/python-urlgrabber-3.9.1-11.el6.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-3.2.29-81.el6.centos.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-41.el6.noarch.rpm

4. 使用rpm安裝

rpm -ivh yum-*
# 需要安裝的幾個包之間有互相依賴關係，不一起安裝會報錯
# 如果執行此命令報了python-urlgrabber版本錯誤
# 執行命令  rpm -Uvh python-urlgrabber-3.9.1-11.el6.noarch.rpm
# 之後再安裝就可以了

5. 下載配置文件CentOS6-Base-163.repo，後面需要把這個文件的內容改一下的

 cd /etc/yum.repos.d/
 wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
 vim CentOS6-Base-163.repo

6. 直接下載的repo配置文件需要修改，其實就是把$releaserver改成6，我放一下我的配置文件

[base]
name=CentOS-$releasever - Base
baseurl=http://mirrors.163.com/centos/6/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6

#released updates
[updates]
name=CentOS-$releasever - Updates
baseurl=http://mirrors.163.com/centos/6/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6


[extras]
name=CentOS-$releasever - Extras
baseurl=http://mirrors.163.com/centos/6/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/6/os/x86_64/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
baseurl=http://mirrors.163.com/centos/6./centosplus/$basearch/
gpgcheck=1
enabled=0

7. 清除緩存，更新緩存，測試

yum clean all
yum makecache
yum install telnet