Where can I find a full list of official OpenSUSE packages? Ubuntu has such a list at Ubuntu -- Ubuntu Packages Search .
Let's say I installed bunch of packages from external PPA repositories and they modified or replaced the existing default packages in the system. Assume that then I remove those PPAs from the apt-sources and I no longer remember their names.
I'm trying to install a new version of Ubuntu from scratch, but I would like a list of the packages which I manually installed (as opposed to installed as a dependency or that came with the system).
I can get a reasonable approximation on Synaptic by looking at only my Installed (manual) packages and then only looking at those packages not supported by Ubuntu (i.e.