How to install Yum on centos 5

There are two ways to install Yum:

1. Download the RPM package of yum for direct Installation

Http://centos.ustc.edu.cn/centos/5.4/ OS /i386/CentOS/yum-3.2.22-20.el5.centos.noarch.rpm

Http://centos.ustc.edu.cn/centos/5.4/ OS /i386/CentOS/yum-fastestmirror-1.1.16-13.el5.centos.noarch.rpm

After downloading to a directory, run the following command:
Rpm-IVH Yum *. rpm
If any file is missing, see the second method.

2. Install using the RPM package
Execute the following commands in sequence:
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/elfutils-libs-0.137-3.el5.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/gmp-4.1.4-10.el5.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/readline-5.1-3.el5.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/python-2.4.3-27.el5.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/python-iniparse-0.2.3-4.el5.noarch.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/libxml2-2.6.26-2.1.2.8.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/libxml2-python-2.6.26-2.1.2.8.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/expat-1.95.8-8.2.1.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/python-elementtree-1.2.6-5.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/sqlite-3.3.6-5.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/python-sqlite-1.1.7-1.2.1.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/elfutils-0.137-3.el5.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/rpm-python-4.4.2.3-18.el5.i386.rpm # (1)
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/m2crypto-0.16-6.el5.6.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/python-urlgrabber-3.1.0-5.el5.noarch.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/yum-metadata-parser-1.1.2-3.el5.centos.i386.rpm
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/yum-3.2.22-20.el5.centos.noarch.rpm (2)
Rpm-uvh http://mirror.centos.org/centos-5/5/ OS /i386/CentOS/yum-fastestmirror-1.1.16-13.el5.centos.noarch.rpm (2)
Yum-y update

Sometimes, if Yum cannot be installed in a simple method, you can combine the two to make everything okay.

They are all found online. Thank you for your resources. Http://hi.baidu.com/dyspangzi/blog/item/7a8154a78704c299d143588c.html
Http://www.vpsad.com/html/y2010/2126_how-to-install-yum-for-centos.html