Customized installation for Oracle

[frastow gmail com]

Dear List,
We are trying to make a customized install of RHEL 4.5 to run Oracle database 10g, with only the minimum packages required, so that we reduce the size, minimize attack surface and reduce patching efforts, etc. 

Any thoughts on where we can find such a list of packages, how to make such an install, etc.?

Regards,
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