RedHat6.5 更换Yum源

转自：http://inlhx.iteye.com/blog/2336729

1.检查yum包 rpm -qa |grep yum
2.删除自带包
rpm -aq | grep yum | xargs rpm -e –nodeps
3.再检查一下
rpm -qa |grep yum
4.下载更新包（http://mirrors.163.com/centos/6/os/x86_64/Packages/）
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-plugin-fastestmirror-1.1.30-40.el6.noarch.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-updateonboot-1.1.30-40.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-utils-1.1.30-40.el6.noarch.rpm

5.执行安装
rpm -ivh yum-*
如果出现

error: Failed dependencies:        python-urlgrabber >= 3.9.1-10 is needed by yum-3.2.29-73.el6.centos.noarch

不要慌，这个问题很恶心会导致后面安装前功尽弃，使用下面
rpm -Uvh python-urlgrabber-3.9.1-11.el6.noarch.rpm
更新rpm -Uvh python-urlgrabber版本，不更新肯定安装不过去
在执行：
rpm -ivh yum-*

warning: yum-3.2.29-73.el6.centos.noarch.rpm: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEYPreparing...                ########################################### [100%]   1:yum-metadata-parser    ########################################### [ 20%]   2:yum-plugin-fastestmirro########################################### [ 40%]   3:yum                    ########################################### [ 60%]   4:yum-updateonboot       ########################################### [ 80%]   5:yum-utils              ########################################### [100%]

安装成功了
6.切换源
cd /etc/yum.repos.d/
mv redhat.repo redhat.repo.bak
mv rhel-source.repo rhel-source.repo.bak
vi /etc/yum.repos.d/CentOS-Base.repo
粘贴如下信息：

#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-6 - Base - 163.com#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=osbaseurl=http://mirrors.163.com/centos/7/os/$basearch/gpgcheck=1gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6.5#released updates[updates]name=CentOS-6 - Updates - 163.com#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=updatesbaseurl=http://mirrors.163.com/centos/7/updates/$basearch/gpgcheck=1gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6.5#additional packages that may be useful[extras]name=CentOS-6 - Extras - 163.com#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=extrasbaseurl=http://mirrors.163.com/centos/7/extras/$basearch/gpgcheck=1gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6.5#additional packages that extend functionality of existing packages[centosplus]name=CentOS-6 - Plus - 163.combaseurl=http://mirrors.163.com/centos/7/centosplus/$basearch/gpgcheck=1enabled=0gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-6.5

8.清理缓存
yum clean all

yum makecache

9.验证

yum install telnet