On 2017-03-21 16:55:36 -0600, Joe Pfeiffer wrote: > Vincent Lefevre <vinc...@vinc17.net> writes: > > By default, the apt preferences are such that unstable is preferred > > over experimental. But as explained in > > > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=795228 > > > > this is not the case with aptitude's resolver: > > > > | With the SolutionCost of "removals", aptitude doesn't take into account > > | installing by priorities or non-default releases, it just tries to > > | minimise the removals, so seing that it could solve the problem by > > | upgrading to 2.7-1~exp1, it just did that. > > That appears (from my experience and reading for a few minutes, at any > rate) to only come into play when there are conflicts to be resolved.
Not just conflicts, but also unfulfilled Depends and Recommends (since 0.8-1 for Recommends, as a fix of #819636). This happens even more when one has packages on hold. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)