When I want to install wine on a custom root directory, there are lots of dependency-warnings. Just for a test i installed it with Code: rpm -Uvh --nodeps --root /wineroot . That works until the %post script which is Code: %post -p /sbin/ldconfig %postun -p /sbin/ldconfig the installation stops there but the path is created corectly and usable (i think). What does this post script do? I know -p as a parameter but not as a command.