On Tue, 15 Sep 2009 15:21:50 +0200 Frank Steinmetzger wrote: > Here it stores alotta info about the binary packages - for instance > with what useflags they were compiled. This info is not in the > archives, which only contain the files.
No, informations about environment are included in tbz2 packages. You can read man xpak for explanations. IMHO, the /usr/portage/packages/Packages file is an index for the package manager to avoid wasting time to open, parse and close each tbz2 file.