Configure RHEL5 to use CentOS Repos

If you installed RHEL5 and you no longer have a subscription for Red Hat Support. You can use the CentOS repos to keep your software up to date. To make a long story shorter here, CentOS removes any Red Hat branding and artwork. For more information about CentOS, visit http://www.centos.org

Now, let's get your box setup to use the CentOS repos.

First things first, import the key.

rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 
yum list 

Now create a file called /etc/yum.repos.d/CentOS.repo. Include the following in the CentOS.repo file.

[base] 
name=CentOS-5 - Base 
mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=os 
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/ 
gpgcheck=1 
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 

#released updates 
[updates] 
name=CentOS-5 - Updates 
mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=updates
#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/ 
gpgcheck=1 
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 

#packages used/produced in the build but not released
[addons] 
name=CentOS-5 - Addons 
mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=addons 
#baseurl=http://mirror.centos.org/centos/$releasever/addons/$basearch/ 
gpgcheck=1 
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 

#additional packages that may be useful 
[extras] name=CentOS-5 - Extras 
mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=extras 
#baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/ 
gpgcheck=1 
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 

#additional packages that extend functionality of existing packages 
[centosplus] name=CentOS-5 - Plus 
mirrorlist=http://mirrorlist.centos.org/?release=5&arch=$basearch&repo=plus 
#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/ 
gpgcheck=1 
enabled=0 
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5 

Now, you can run `yum update` to update the rpms on your RHEL5 box using the CentOS repos.