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Local Yum Repository Setup

Oracle has updated the instructions on how to setup a local yum repository for Oracle's Unbreakable Linux program. It's a bit shorter, clearer and the channels are better explained than before.
However, if you want have a yum repo mirror that can also utilize ISO images as well as a set of custom RPMs, not normally in the repository, be sure to check out DAG's mrepo instead. Using mrepo, you can have a yum repo, a dir with local, custom RPMs for specific apps, as well as plain straight ISO images.

Update: their yum population script was updated again late December.
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