I cant install any RPM File. After opening the installer i have to log in as root, after that the following message appears:

rpm -U --replacepkgs '//home/tbauer/burn/fp-linux-ws.rpm';echo RESULT=$?
rpm: To install rpm packages on Debian systems, use alien. See README.Debian.
error: cannot open Packages index using db3 - No such file or directory (2)
error: cannot open Packages database in /var/lib/rpm
RESULT=1

No matter what program i try to install.