Part I contains pre-installation requirements that you should read before installing Oracle Collaboration Suite Release 2 (9.0.4).
Part 1 contains the following chapters:
Chapter 1, "Preinstallation Requirements for Solaris, hp-ux PA-RISC (64-bit), and Linux x86"
Chapter 3, "Preinstallation Requirements for Windows"
Chapter 2, "Preinstallation Requirements for hp Tru64 UNIX"
Chapter 4, "Preinstallation Requirements for AIX"