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Groups > linux.debian.user > #173069

Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages

From Henrique de Moraes Holschuh <hmh@debian.org>
Newsgroups linux.debian.user
Subject Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages
Date 2016-10-01 20:00 +0200
Message-ID <snwJP-3no-9@gated-at.bofh.it> (permalink)
References <skVbI-1uc-15@gated-at.bofh.it> <smSCJ-2ey-3@gated-at.bofh.it> <sn2sq-8pw-19@gated-at.bofh.it> <sn6cG-2n1-23@gated-at.bofh.it> <snbm2-60q-17@gated-at.bofh.it>
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On Fri, 30 Sep 2016, Andre Majorel wrote:
> And that getting some people to acknowledge that there even is a
> problem, let alone fix it, should be so difficult.

This is a well-known limitation of aptitude (at least among DDs), and
given the number of threads about it in d-user, it should be well-known
around here as well.

But the resolver is just one part of the aptitude design.  You won't
find a consensus that the resolver is the most important part of
aptitude, either: since it is an interactive tool and the most powerful
one available at that -- as long as you do take the time to learn its
powerful features -- it typically allows you to override any of its bad
decisions, you will get people like me defending aptitude's design while
freely acknowledging that its resolver could do better.

Were we talking about apt-get, it would be a different matter.  There,
the resolver is by far the most important component.

Anyway, this is no excuse for the aptitude resolver behavior (just an
explanation why a lot of DDs are never going to jump into the "aptitude
is broken/crap/bad" bandwagon), but fixing it is non-trivial.

While one does have enough tunables for aptitude's resolver that code
changes might not be needed to address this specific issue at all (i.e.
its first resolution choice being rather remove-happy), finding the "one
solution that fits all" has been elusive.

Besides, to push changes to aptitude's default resolver behavior, you
have to *test* their effects, which actually means you need to reproduce
a decent number of upgrade / downgrade / broken global package and
archive states.

Volunteers to tack that problem are welcome.

On that note, I wonder if it would be easier to give aptitude some
"resolver profiles" that are selectable on the UI and behave more like
dist-upgrade, safe-upgrade, and the "should work for everything, but
might offer rather bad deals as the first choice" we currently have.

-- 
  Henrique Holschuh

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WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Cindy-Sue Causey <butterflybytes@gmail.com> - 2016-09-24 15:30 +0200
  Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Sven Hartge <sven@svenhartge.de> - 2016-09-24 15:50 +0200
    Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Cindy-Sue Causey <butterflybytes@gmail.com> - 2016-09-24 17:40 +0200
      Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages John Hasler <jhasler@newsguy.com> - 2016-09-24 20:20 +0200
      Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Seeker <seeker5528@comcast.net> - 2016-09-24 21:20 +0200
      Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Jonathan Dowland <jmtd@debian.org> - 2016-09-30 09:20 +0200
    Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-09-28 17:10 +0200
      Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages John Hasler <jhasler@newsguy.com> - 2016-09-28 17:50 +0200
        Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-09-28 20:00 +0200
          Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Brad Rogers <brad@fineby.me.uk> - 2016-09-28 20:40 +0200
            Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-09-29 11:10 +0200
              Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Darac Marjal <mailinglist@darac.org.uk> - 2016-09-29 11:20 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-09-29 13:30 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-09-29 13:50 +0200
          Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Stefan Monnier <monnier@iro.umontreal.ca> - 2016-09-28 20:40 +0200
          Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Sven Hartge <sven@svenhartge.de> - 2016-09-28 21:40 +0200
            Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-09-29 11:10 +0200
          Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages John Hasler <jhasler@newsguy.com> - 2016-09-28 22:00 +0200
            Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Stefan Monnier <monnier@iro.umontreal.ca> - 2016-09-28 22:30 +0200
              Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Miles Fidelman <mfidelman@meetinghouse.net> - 2016-09-28 23:10 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Don Armstrong <don@debian.org> - 2016-09-28 23:50 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages <tomas@tuxteam.de> - 2016-09-29 11:20 +0200
            Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-09-29 11:20 +0200
        Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Andre Majorel <aym-naibed@teaser.fr> - 2016-09-28 22:00 +0200
          Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages John Hasler <jhasler@newsguy.com> - 2016-09-28 22:30 +0200
          Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Sven Hartge <sven@svenhartge.de> - 2016-09-28 23:10 +0200
            Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-09-29 11:00 +0200
              Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-09-29 14:20 +0200
              Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Stefan Monnier <monnier@iro.umontreal.ca> - 2016-09-30 01:10 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-09-30 11:40 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Stefan Monnier <monnier@iro.umontreal.ca> - 2016-09-30 15:40 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-10-04 09:10 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages rhkramer@gmail.com - 2016-10-04 11:50 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-10-05 00:00 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Rick Thomas <rbthomas@pobox.com> - 2016-10-05 21:40 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-09-30 15:40 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Ric Moore <wayward4now@gmail.com> - 2016-09-30 16:30 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-10-03 16:40 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Andre Majorel <aym-naibed@teaser.fr> - 2016-09-30 21:10 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Henrique de Moraes Holschuh <hmh@debian.org> - 2016-10-01 20:00 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-10-04 09:40 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-10-04 09:30 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Mark Fletcher <mark27q1@gmail.com> - 2016-10-04 16:20 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages claude juif <claude.juif@gmail.com> - 2016-10-09 07:40 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-10-05 00:00 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-10-07 16:50 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Ben Caradoc-Davies <ben@transient.nz> - 2016-10-07 22:30 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-10-13 01:10 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Ben Caradoc-Davies <ben@transient.nz> - 2016-10-13 01:50 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-12-07 16:10 +0100
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-12-08 00:50 +0100
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-12-16 12:50 +0100
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Joe <joe@jretrading.com> - 2016-12-16 19:10 +0100
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-12-19 12:40 +0100
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Joe <joe@jretrading.com> - 2016-12-19 20:00 +0100
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Vincent Lefevre <vincent@vinc17.net> - 2016-12-20 01:40 +0100
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-12-21 20:00 +0100
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Joe <joe@jretrading.com> - 2016-12-21 21:20 +0100
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages David Wright <deblis@lionunicorn.co.uk> - 2016-12-16 20:00 +0100
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages claude juif <claude.juif@gmail.com> - 2016-10-09 07:30 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-10-09 18:00 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages claude juif <claude.juif@gmail.com> - 2016-10-09 18:30 +0200
                Unsubscribing in order to killfile one individual.  Was: Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-10-10 01:50 +0200
                Re: Unsubscribing in order to killfile one individual. Was: Re:  WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Bob Bernstein <poobah@ruptured-duck.com> - 2016-10-10 03:20 +0200
                Re: Unsubscribing in order to killfile one individual. Was: Re:  WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Joe <joe@jretrading.com> - 2016-10-10 10:10 +0200
                Re: Unsubscribing in order to killfile one individual. Was: Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-10-10 13:20 +0200
                Re: Unsubscribing in order to killfile one individual. Was: Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-10-10 13:20 +0200
                Re: Unsubscribing in order to killfile one individual. Was: Re:  WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Joe <joe@jretrading.com> - 2016-10-10 20:10 +0200
                Re: Unsubscribing in order to killfile one individual. Was: Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Lisi Reisz <lisi.reisz@gmail.com> - 2016-10-10 23:40 +0200
              Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages John Hasler <jhasler@newsguy.com> - 2016-09-30 17:20 +0200
                Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Henrique de Moraes Holschuh <hmh@debian.org> - 2016-09-30 20:10 +0200
          Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Rick Thomas <rbthomas@pobox.com> - 2016-10-01 10:30 +0200
  Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages rhkramer@gmail.com - 2016-09-24 15:50 +0200
    Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Cindy-Sue Causey <butterflybytes@gmail.com> - 2016-09-24 18:00 +0200
    Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Glenn English <ghe2001@gmail.com> - 2016-09-24 18:20 +0200
      Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Christian Seiler <christian@iwakd.de> - 2016-09-24 18:40 +0200
        Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages "Andrew M.A. Cater" <amacater@galactic.demon.co.uk> - 2016-09-24 20:30 +0200
          Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages John Hasler <jhasler@newsguy.com> - 2016-09-24 20:40 +0200
  Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages Glenn English <ghe2001@gmail.com> - 2016-09-24 19:00 +0200
    Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages John Hasler <jhasler@newsguy.com> - 2016-09-24 20:20 +0200
  Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable  packages Ben Caradoc-Davies <ben@transient.nz> - 2016-09-24 23:40 +0200

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