When a package is installed, all information mentioned above is stored in the RPP record file. Additional information is also stored, including the install date, and the installer. The record file is stored in the RPP record directory, which is /var/adm/rpp by default and can be changed by setting the environment variable RPP_RECORD_DIR. If you do use some other directory, it must contain the following subdirectories: verify, before-uninstall and after-install. The rpp record directory contains other critical elements of the system, and you should be very careful messing around in it. Recovering from a corrupted record file is very difficult.