总结：软件的更新很快，仓库的软件也会随时更新，网络上的教程基本上是正确的，但要注意软件的版本信息等
1.删除redhat原有的yum
rpm -aq|grep yum|xargs rpm -e --nodeps
2.下载yum安装文件
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/yum-3.2.29-60.el6.centos.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-plugin-fastestmirror-1.1.30-30.el6.noarch.rpm
wget http://mirrors.163.com/centos/6/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm
3.进行安装yum
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-3.2.29-60.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-30.el6.noarch.rpm
注意最后两个包必需同时安装，否则会相互依赖
4.更新repo文件
mv /etc/yum.repos.d/rhel-debuginfo.repo /etc/yum.repos.d/rhel-debuginfo.repo.repo.bak
vi /etc/yum.repos.d/rhel-debuginfo.repo
内容为：（以下面的内容为准，之前网上摘的那个不是最新的）
# CentOS-Base.repo # # CentOS-4 is past End of Life ... use at your own risk # [base] name=CentOS-$releasever - Base baseurl=http://vault.centos.org/4.9/os/$basearch/ gpgcheck=1 gpgkey=http://vault.centos.org/RPM-GPG-KEY-centos4 protect=1 priority=1 #released updates [update] name=CentOS-$releasever - Updates baseurl=http://vault.centos.org/4.9/updates/$basearch/ gpgcheck=1 gpgkey=http://vault.centos.org/RPM-GPG-KEY-centos4 protect=1 priority=1 #packages used/produced in the build but not released [addons] name=CentOS-$releasever - Addons baseurl=http://vault.centos.org/4.9/addons/$basearch/ gpgcheck=1 gpgkey=http://vault.centos.org/RPM-GPG-KEY-centos4 protect=1 priority=1 #additional packages that may be useful [extras] name=CentOS-$releasever - Extras baseurl=http://vault.centos.org/4.9/extras/$basearch/ gpgcheck=1 gpgkey=http://vault.centos.org/RPM-GPG-KEY-centos4 protect=1 priority=1 #additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever - Plus baseurl=http://vault.centos.org/4.9/centosplus/$basearch/ gpgcheck=1 enabled=0 gpgkey=http://vault.centos.org/RPM-GPG-KEY-centos4 protect=1 priority=2 #contrib - packages by Centos Users [contrib] name=CentOS-$releasever - Contrib baseurl=http://vault.centos.org/4.9/contrib/$basearch/ gpgcheck=1 enabled=0 gpgkey=http://vault.centos.org/RPM-GPG-KEY-centos4 protect=1 priority=2
5、yum clean all
6、yum list 进行测试
002pc.com认为此文章对《Linux如何退出if confRedHat6配置yum》说的很在理。
注意：
有时候上面的方法会出现问题，可以参考一下这个（我第一次测试的时候完全可以，第二次弄的时候就出问题了，好像是因为CentOS-4已经停止发布了）http://blog.sina.com.cn/s/blog_4a5eb9980102v2e1.html
（其它源）
# 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
baseurl=http://mirrors.163.com/centos/6/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-6 - Updates - 163.com
baseurl=http://mirrors.163.com/centos/6/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-6 - Extras - 163.com
baseurl=http://mirrors.163.com/centos/6/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-6 - Plus - 163.com
baseurl=http://mirrors.163.com/centos/6/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#contrib - packages by Centos Users
[contrib]
name=CentOS-6 - Contrib - 163.com
baseurl=http://mirrors.163.com/centos/6/contrib/$basearch/
更多:Linux如何退出if confRedHat6配置yum
https://www.002pc.comhttps://www.002pc.com/linux/5193.html
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