error: cannot get exclusive lock on /var/lib/rpm/Packages

taiwan[Chen].~ > rpm -i termcap-2.0.8-879.i586.rpm
error: cannot get exclusive lock on /var/lib/rpm/Packages
error: cannot open Packages index using db3 - Operation not permitted (1)
error: cannot open Packages database in /var/lib/rpm

Please login as root to resolve this error! Only root can install new package.