Before you begin, you must have a Custom Firmware (CFW) or HEN (Homebrew Enabler) installed on your PS3. You cannot install .PKG files on a standard, unmodified retail PS3.
This is the standard method for most users. You will need a USB drive formatted to FAT32. how to install pkg games on ps3
Add License (RAP) Files: Create a folder on the root of the USB named exactly exdata (lowercase). Place your .rap files inside this folder. Step 3: Installation Process Important Prerequisites Before you begin, you must have
.rap file in dev_hdd0/exdata/ (create folder if missing).