Yum

AWS Developer Forums: Red Hat repository broken ...

https://forums.aws.amazon.com/thread.jspa?messageID=280981&tstart=0 RHEL 5.6 images on Amazon are broken, you need to install an additional RPM package to fix the repo setup

AWS Developer Forums: Red Hat repository broken ...

https://forums.aws.amazon.com/thread.jspa?messageID=280981&tstart=0 RHEL 5.6 images on Amazon are broken, you need to install an additional RPM package to fix the repo setup

Installing source package with YUM

http://blog.foppiano.org/2007/12/11/installing-source-package-with-yum/ in the essence it is:

PackageManagement/Yum/Priorities - CentOS Wiki

http://wiki.centos.org/PackageManagement/Yum/Priorities how not to mix packages from different repos in RHEL/CENTOS