1. 删除原有的yum源
# rpm -aq | grep yum|xargs rpm -e --nodeps
2.下载新的yum安装包，这里使用centos-6.5
# wget http://mirror.centos.org/centos/6.5/os/x86_64/Packages/yum-3.2.29-40.el6.centos.noarch.rpm # wget http://mirror.centos.org/centos/6.5/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm # wget http://mirror.centos.org/centos/6.5/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm # wget http://mirror.centos.org/centos/6.5/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm
3.安装yum软件包
# rpm -ivh python-iniparse-0.3.1-2.1.el6.noarch.rpm # rpm -ivh yum-metadata-parser-1.1.2-16.el6.x86_64.rpm # rpm -ivh yum-3.2.29-40.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm
4. 更改yum源
在/etc/yum.repos.d/新建文件centos.repo,内容如下：
# CentOS-Base.repo ###################begin################################# # # 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-6.5 – Base #mirrorlist=http://mirrorlist.centos.org/?release=6.5&arch=$basearch&repo=os baseurl=http://mirror.centos.org/centos/6.5/os/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #released updates [updates] name=CentOS-6.5 – Updates #mirrorlist=http://mirrorlist.centos.org/?release=6.5&arch=$basearch&repo=updates baseurl=http://mirror.centos.org/centos/6.5/updates/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #additional packages that may be useful [extras] name=CentOS-6.5 – Extras #mirrorlist=http://mirrorlist.centos.org/?release=6.5&arch=$basearch&repo=extras baseurl=http://mirror.centos.org/centos/6.5/extras/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #additional packages that extend functionality of existing packages [centosplus] name=CentOS-6.5 – Plus #mirrorlist=http://mirrorlist.centos.org/?release=6.5&arch=$basearch&repo=centosplus baseurl=http://mirror.centos.org/centos/6.5/centosplus/$basearch/ gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #contrib – packages by Centos Users [contrib] name=CentOS-6.5 – Contrib #mirrorlist=http://mirrorlist.centos.org/?release=6.5&arch=$basearch&repo=contrib baseurl=http://mirror.centos.org/centos/6.5/contrib/$basearch/ gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 ##########################end########################################
注意：
1. 6.5为版本（可替换）；
2. 如果RPM-GPG-KEY-CentOS-6不存在则新建，下载地址：http://mirror.centos.org/centos/6.5/os/x86_64/RPM-GPG-KEY-CentOS-6
5.清理yum缓存
# yum clean all # yum makecache #将服务器上的软件包信息缓存到本地,以提高搜索安装软件的速度 # yum install lrzsz #测试新源是否可用