RedHat 6.3配置使用Centos的yum源
1、检查是否安装了yum包 # rpm -qa |grep yum2、卸载RedHat自带的yum# rpm -qa | grep yum | xargs rpm -e --nodeps
注：a) xargs是一条Unix和类Unix操作系统的常用命令。它的作用是将参数列表转换成小块分段传递给 其他命令，以避免参数列表过长的问题
b) --nodeps强制卸载,不管依赖性
3、到http://mirrors.163.com/centos中使用命令下载软件包
wgethttp://mirrors.163.com/centos/6/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm
wgethttp://mirrors.163.com/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
wgethttp://mirrors.163.com/centos/6/os/x86_64/Packages/yum-3.2.29-40.el6.centos.noarch.rpm
wgethttp://mirrors.163.com/centos/6/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm
[注]：本文示例为linux 6.4 x86_64位版本，若是32位的即x86的则将上述路径中”x86_64”改成i386，若为6.5版的可以直接将上面的6改成6.5，软件包不一定要最新的，一般来说6.4与6.5的软件包是通用的，本人没有测试过，若遇到改成6.5无法下载可以尝试直接按照上述路径下载
如以上链接无法直接下载请进百度网盘下载直接copy进去，但是请注意权限设置，下载地址如下：http://pan.baidu.com/s/1eQwfAtO
4、安装下载的centos的yum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
[注] :最后2个需要一起安装，否则会出现依赖性错误
5、下载CentOS6-Base-163.repo文件，存放到 /etc/yum.repo.d中
wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
6、编辑CentOS6-Base-163.repo文件，将其中的$releasever更改为centos的版本号，6.4版的则改成6，若是6.5版的则改成6.5，见下面红色标出的数字 # vim CentOS6-Base-163.repo
下面是修改好的，可直接复制进去：
# CentOS-Base.repo
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.You should use this for CentOS updates
# unless you are manually picking other mirrors.
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
name=CentOS-6 - Base - 163.com
baseurl=http://mirrors.163.com/centos/6/os/$basearch/#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#released updates
name=CentOS-6 - Updates - 163.com
baseurl=http://mirrors.163.com/centos/6/updates/$basearch/#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
name=CentOS-6 - Extras - 163.com
baseurl=http://mirrors.163.com/centos/6/extras/$basearch/#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages
name=CentOS-6 - Plus - 163.com
baseurl=http://mirrors.163.com/centos/6/centosplus/$basearch/#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#contrib - packages by Centos Users
name=CentOS-6 - Contrib - 163.com
baseurl=http://mirrors.163.com/centos/6/contrib/$basearch/#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
7、# yum clean all 清除原有缓存
8、# yum makecache
获取yum列表：出现右侧提示表示yum更改完成：Metadata Cache Created
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