How to prepare new RHEL 6 ISO with latest patches?

Solution Verified - Updated -

Issue

Since original RHEL6.2 there are many patches (kernel etc) available. Our client machines are hosted in a closed environment. NFS or http update server is not an option either. The only way is to use an updated DVD ISO image.

When using steps provided in kbase article How to incorporate custom packages (third party RPMs) into a Red Hat Enterprise Linux 5 installation media? installation fails with message:

Unable to read group information from repositories. This is a problem with the generation of your install tree.

Environment

  • Red Hat Enterprise Linux 6

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