Learn how to install and use TrueCrypt Password Encrypted Disk program. I will teach you how to install TrueCrypt in Ubuntu 9 by running the install script you download from truecrypt.org/downloads . Scroll down to the bottom of the download page to download the install file for linux. Extract it and run it in terminal. I will also teach you how to create a password encrypted file container, and mount and dismount it in Ununtu and other Linux Distros.