oem.tgz is a file used by ESXi to customize the installation. With this file you can replace default files that ESXi uses or add additional files to the install. Below are some sample files which enable support for various storage controllers. Please search the forum for other files. Notes: 1) ESXi 3.5 Update 4 includes some support for ICH9 and ICH10 controllers. If you are performing a new inst