Here's the structure of the installation directory:
/export/install/redhat/8.0/ ---- extra/ ---- config/
| |-- scripts/
|
|-- kickstart/
|-- official_release/ ---- dosutils/
| |-- images/
| |-- isolinux/
| |-- RedHat/ ---- base/
| | |-- RPMS/
| | |-- TRANS.TBL
| |-- SRPMS/
| |-- ...
|-- old_rpms/
|-- updated_release/ ----- dosutils/
| |-- images/
| |-- isolinux/
| |-- RedHat/ ---- base/
| | |-- RPMS/
| | |-- TRANS.TBL
| |-- SRPMS/
| |-- ...
|
|-- updates/ ---- athlon/
| |-- extra/ ------ athlon/
| |-- i386/ |-- i386/
| |-- i486/ |-- i486/
| |-- i586/ |-- i586/
| |-- i686/ |-- i686/
| |-- noarch/ |-- noarch/
| |-- SRPMS/ |-- SRPMS/
|
|-- yum_repository/ ---- base/ ------- header.info
| |-- headers/
| |-- packages/
|
|-- updates/ ---- header.info
|-- headers/
|-- packages/
|