Package: apt Version: 1.1~exp8 Severity: wishlist Hi,
this bug is about installing a package from a repository with a low pin priority. I will use experimental as an example but this really works with any repository with low pin priority. My problem is, that there seems to be no way to install a package from experimental without either specifying all packages manually (and thus giving apt the exact solution I want - this is stupid because apt should find a solution for me) or specifying "-t experimental" which will then get *all* packages from experimental even for those dependencies that would be satisfied by packages from unstable (which is also stupid because of course I only assigned a low pin priority to a repository because I do *not* prefer packages from that repository, so please minimize the amount of packages from there). I created a small test suite that illustrates the problem: https://gitlab.mister-muffin.de/josch/apt-install-low-pin The script test.sh sets up two local apt repositories with different pin values and then tries to install a package from the repository with lower pin priority. It shows the following problem: When just using "apt-get install package-from-experimental" apt will not automatically use experimental to satisfy the dependencies of that package and will fail to install. When using "apt-get install -t experimental package-from-experimental" then apt will take *all* packages from experimental, even those that would be satisfied by packages from unstable. The last situation even leads to uninstallabilities where a package from experimental has a versioned dependency which is only satisfied in unstable and another versioned dependency which is only satisfied in experimental. The test suite shows this situation. How can one install such a package without specifying the solution manually? In the end I show how the execution of: apt-get install --simulate --solver aspcud \ -o APT::Solver::Strict-Pinning=false \ -o APT::Solver::aspcud::Preferences="-new,-removed,-changed,+sum(solution,apt-pin)" \ pkg-a does exactly what I expect would happen by default: It takes only the packages from experimental where it needs to and gets the rest of the packages from the repository with higher pin priority (unstable). Should it not be possible to do this with apt alone? cheers, josch -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
