Oracle Database Online Documentation
10g Release 2 (10.2)
READMEs and Release Notes
Documentation errata are in the README. Extra installation information for each platform is in the Release Notes.
Quick Installation Guides
The Quick Installation Guides cover the basics of installing on a clean machine, using a specific operating system.
Client Installation Guides
The Client Installation Guides cover the simplified install for just the Oracle client software, which lets you connect to a database running on a different system, using a database application or the interactive SQL*Plus tool. Again, there is a set of Quick Installation Guides for typical scenarios, and a full Installation Guide for advanced scenarios.
Installation guides describe how to install Oracle Database on various platforms and operating systems.
Companion CD Installation Guides
The Companion CD Installation Guides cover the software other than the main database server. This software works in conjunction with the database, and requires a separate, optional installation. Again, there is a set of Quick Installation Guides for typical scenarios, and a full Installation Guide for advanced scenarios.