KPM stores its package database in
/mnt/us/kmc/kpm/kpm.db- This file stores internal KPM data/mnt/us/kmc/kpm/packages/- This folder contains KPM packages/mnt/us/kmc/kpm/tmp/- This folder is used to store temporary files such as package downloads/mnt/us/kmc/kpm/cache/- This folder is used to store cached data (such as screenshots)