urpmi.removemedia -a
urpmi.addmedia main ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrakelinux/old/8.1/i586/Mandrake/RPMS/ with ../base/hdlist.cz
urpmi.addmedia --update updates ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrakelinux/old/updates/8.1/RPMS/ with ../base/hdlist.cz