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

From Darac Marjal <mailinglist@darac.org.uk>
Newsgroups linux.debian.user
Subject Re: WARNING! New Perl/Perl-base upgrade removes 141 Sid/Unstable packages
Date 2016-09-29 11:20 +0200
Message-ID <smFFw-28g-13@gated-at.bofh.it> (permalink)
References (2 earlier) <smoEF-8kS-3@gated-at.bofh.it> <smpho-by-19@gated-at.bofh.it> <smrjb-1pQ-7@gated-at.bofh.it> <smrVU-1Ta-49@gated-at.bofh.it> <smFvP-250-11@gated-at.bofh.it>
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On Thu, Sep 29, 2016 at 11:00:30AM +0200, Vincent Lefevre wrote:
>On 2016-09-28 19:30:07 +0100, Brad Rogers wrote:
>> On Wed, 28 Sep 2016 19:55:49 +0200
>> Vincent Lefevre <vincent@vinc17.net> wrote:
>>
>> Hello Vincent,
>>
>> >I'm not asking it to read my mind. I just want it not to
>> >remove any package I have manually installed.
>>
>> I don't use aptitude, but if I understand things correctly, you don't
>> have to accept the first thing offered.
>
>Aptitude is so broken that sometimes *all* the solutions it offers
>include removal of packages:
>
>  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=823928#10

Looking at the documentation for SolutionCost, it only makes removals 
more costly. There is no way to say "never remove any packages".

And nor should there be. If PackageA (to be installed) conflicts with 
PackageB (which is installed), what are the options? To remove PackageB 
or to countermand the user's instructions and NOT install PackageA. OK, 
so you've told it that removals are more costly than cancels, so it 
cancels the request.

But what if PackageA is something like libc? A hundred packages are to 
be upgraded but PackageB is old and incompatible. Clearly, even though 
you've boosted the cost of removals, it's STILL cheaper to remove 
PackageB than it is to cancel those hundred installs.

>
>-- 
>Vincent Lefèvre <vincent@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)
>

-- 
For more information, please reread.

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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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