[quote myself, ;-) this is semi-final now ;-)] another solution is to let every single deb provides its.pkg-gz then, apt-get update will do nothing, apt-get install some.deb will first download some.pkg-gz, then check its dependency, then grab them.pkg-gz all, then install.
that is a minimum. isn't it? ;) and then we will need some ``apt-get info pkg'' hehe.. and a virtual release-pkgs-gz.deb will depend on some selected part of those any.pkg-gz to get up a release. say one release contains 2000 pkgz, each pkg name is 10 chars, then the whole infomation is a little more then 20k, compare with nowadays, a more than 1M. and you could still do ``apt-get dist-upgrade'', just first install release-pkgs-gz.deb then go on..., OR, first get a list of all debs installed then update them each. [some more thoughts here..., later] and you could have base-3.3-release, and gnome-4.4-release which depends on base-3.2-release and x-5.6-release. and chinese-2.0-release etc. ... then katie will remove a package only when no release-pkgs-gz.deb (or testing, or whatever) depends on its.pkg-gz zw
