When I first install the Debian, I have specified apt source -> cdrom. But, after I downloaded a deb pack. into the harddisk, I could not install it by using "apt-get install ..". Can you give example changes in the "/usr/share/doc/apt/examples/source.list" file? Should I configure this file or take another action to achieve installing a deb package in the harddisk (e.g /dev/hda1). Sevgi, Saygi, LINUX!!! (Love, Respect, LINUX!!!)