urpmi Usage

list my configured media sources : 
urpmq --list-media

add any local directory I like as a package source:
urpmi.addmedia --update "some_name" file:///some/directory/path

automatically update everything that needs updating:
urpmi --auto-select   (note: this will NOT update your kernel!)

detail website: http://speculation.org/garrick/urpmifaq.txt