On Thu, May 07, 2020 at 06:04:25PM +0200, Riccardo Mottola wrote: > this is quit clear and makes sense to me. I wondered if there existed a > ready script for 2) to share... > > I would check if the .so.x file has a corresponding symlink, if it has, > it is latest version, else it is old.
That is not needed (old minor versions are removed, only old major versions stay around and also keep a symlink). I dimly remember a perl script that used ldd and walked through all binaries and libs (including pkgsrc) to find all still referenced .so, and then generated a list of the actually obsolete ones. But this is a minor space saver only. > FreeBSD does it with upgrade: > 1) update system > 2) updat all packages > 3 re-run update to cleanup In NetBSD we have a strict focus on binary compatibility, so usually it is not required to update everything - and sometimes it is a pain to update old stuff. But binary compatibility only helps if you keep the old libs around. Martin
