Package priority puzzlement

From	craig duncan <gunkilatur@gmail.com>
Newsgroups	linux.debian.user
Subject	Package priority puzzlement
Date	2021-09-15 01:20 +0200
Message-ID	<CXpSx-1VB-11@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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I just installed Bullseye after -- as a long-time Debian user -- having 
had my hard drive corrupted by USB devices.
I used to run testing, so i thought i would get there, but first i 
wanted to install the apps i wanted, get things working, and then 
migrate to testing.
During the install, i also enabled security-updates.  In fact, i added 
both sid and testing to my sources.list (after booting into new install).

I'm seeing some strange behavior which i cannot figure out when i go to 
upgrade or add packages... best demonstrated by the particular cases i 
am puzzling over.
First:

> cat /etc/apt/apt.conf
> APT::Default-Release "stable";
And there are 9 pre-installed scripts in /etc/apt/apt.conf.d that i 
don't believe are relevant to any of this.

So, when i do: "aptitude safe-upgrade":

> The following NEW packages will be installed:
>   libbotan-2-18{a} libidn12{a}
> The following packages will be REMOVED:
>   libbotan-2-17{u}
> The following packages will be upgraded:
>   libgs9 libgs9-common libperl5.32 libssh-gcrypt-4 openssl perl perl-base
>   perl-modules-5.32 thunderbird
> 9 packages upgraded, 2 newly installed, 1 to remove and 1 not upgraded.
> Need to get 13.0 MB/57.1 MB of archives. After unpacking 252 kB will 
> be used.
> Do you want to continue? [Y/n/?]


> # aptitude why libidn12
> i   gimp   Depends libgs9 (>= 8.61.dfsg.1)
> p A libgs9 Depends libidn12 (>= 1.13)


> # apt-cache policy libgs9
> libgs9:
>   Installed: 9.53.3~dfsg-7+deb11u1
>   Candidate: 9.53.3~dfsg-8
>   Version table:
>      9.53.3~dfsg-8 500
>         500 http://deb.debian.org/debian sid/main amd64 Packages
>  *** 9.53.3~dfsg-7+deb11u1 500
>         500 http://security.debian.org/debian-security 
> bullseye-security/main amd64 Packages
>         100 /var/lib/dpkg/status
>      9.53.3~dfsg-7+b1 500
>         500 http://deb.debian.org/debian testing/main amd64 Packages
>      9.53.3~dfsg-7 990
>         990 http://deb.debian.org/debian bullseye/main amd64 Packages

> # apt-cache policy gimp
> gimp:
>   Installed: 2.10.22-4
>   Candidate: 2.10.22-4
>   Version table:
>      2.10.26-1 500
>         500 http://deb.debian.org/debian sid/main amd64 Packages
>  *** 2.10.22-4 990
>         990 http://deb.debian.org/debian bullseye/main amd64 Packages
>         500 http://deb.debian.org/debian testing/main amd64 Packages
>         100 /var/lib/dpkg/status

> # apt-cache show libgs9|egrep 'Version|libidn'
> Version: 9.53.3~dfsg-8
> Depends: libgs9-common (= 9.53.3~dfsg-8), poppler-data, libc6 (>= 
> 2.29), libcups2 (>= 2.3~b6), libfontconfig1 (>= 2.12.6), libfreetype6 
> (>= 2.10.1), *libidn12* (>= 1.13), libijs-0.35 (>= 0.35), libjbig2dec0 
> (>= 0.16+20190905), libjpeg62-turbo (>= 1.3.1), liblcms2-2 (>= 2.6), 
> libopenjp2-7 (>= 2.0.0), libpaper1, libpng16-16 (>= 1.6.2-1), libtiff5 
> (>= 4.0.3), zlib1g (>= 1:1.2.0)
> Version: 9.53.3~dfsg-7+deb11u1
> Depends: libgs9-common (= 9.53.3~dfsg-7+deb11u1), poppler-data, libc6 
> (>= 2.29), libcups2 (>= 2.3~b6), libfontconfig1 (>= 2.12.6), 
> libfreetype6 (>= 2.10.1), *libidn11* (>= 1.13), libijs-0.35 (>= 0.35), 
> libjbig2dec0 (>= 0.16+20190905), libjpeg62-turbo (>= 1.3.1), 
> liblcms2-2 (>= 2.6), libopenjp2-7 (>= 2.0.0), libpaper1, libpng16-16 
> (>= 1.6.2-1), libtiff5 (>= 4.0.3), zlib1g (>= 1:1.2.0)
> Version: 9.53.3~dfsg-7+b1
> Depends: libgs9-common (= 9.53.3~dfsg-7), poppler-data, libc6 (>= 
> 2.29), libcups2 (>= 2.3~b6), libfontconfig1 (>= 2.12.6), libfreetype6 
> (>= 2.10.1), *libidn12* (>= 1.13), libijs-0.35 (>= 0.35), libjbig2dec0 
> (>= 0.16+20190905), libjpeg62-turbo (>= 1.3.1), liblcms2-2 (>= 2.6), 
> libopenjp2-7 (>= 2.0.0), libpaper1, libpng16-16 (>= 1.6.2-1), libtiff5 
> (>= 4.0.3), zlib1g (>= 1:1.2.0)
> Version: 9.53.3~dfsg-7
> Depends: libgs9-common (= 9.53.3~dfsg-7), poppler-data, libc6 (>= 
> 2.29), libcups2 (>= 2.3~b6), libfontconfig1 (>= 2.12.6), libfreetype6 
> (>= 2.10.1), *libidn11* (>= 1.13), libijs-0.35 (>= 0.35), libjbig2dec0 
> (>= 0.16+20190905), libjpeg62-turbo (>= 1.3.1), liblcms2-2 (>= 2.6), 
> libopenjp2-7 (>= 2.0.0), libpaper1, libpng16-16 (>= 1.6.2-1), libtiff5 
> (>= 4.0.3), zlib1g (>= 1:1.2.0)

> dpkg -l 'libidn1*'|grep '^i'
> ii  libidn11:amd64 1.33-3       amd64        GNU Libidn library, 
> implementation of IETF IDN specifications


So, libidn11 is currently installed as a dependency of libgs9 from the 
security source.  But it wants to install libidn12, because it's going 
to install libgs9 from sid!

The other package it wanted to "upgrade" shows a similar issue:

> # why libbotan-2-18
> ___________________________
> aptitude why...
> i   lxde        Suggests libreoffice
> p   libreoffice Suggests firefox-esr | thunderbird | firefox
> p   thunderbird Depends  libbotan-2-18 (>= 2.18.1+dfsg)

> # why libbotan-2-17
> ___________________________
> aptitude why...
> iB  thunderbird Depends libbotan-2-17 (>= 2.17.3+dfsg)

Why is this broken?  I installed thunderbird from testing, it was 
broken, reinstalled what had been originally installed, from security... 
all broken.
It *works* perfectly fine.

> # apt-cache policy thunderbird
> thunderbird:
>   Installed: 1:78.14.0-1~deb11u1
>   Candidate: 1:78.14.0-1
>   Version table:
>      1:78.14.0-1 500
>         500 http://deb.debian.org/debian sid/main amd64 Packages
>  *** 1:78.14.0-1~deb11u1 500
>         500 http://security.debian.org/debian-security 
> bullseye-security/main amd64 Packages
>         100 /var/lib/dpkg/status
>      1:78.13.0-1 500
>         500 http://deb.debian.org/debian testing/main amd64 Packages
>      1:78.12.0-1 990
>         990 http://deb.debian.org/debian bullseye/main amd64 Packages

> # apt-cache policy libbotan-2-17
> libbotan-2-17:
>   Installed: 2.17.3+dfsg-2
>   Candidate: 2.17.3+dfsg-2
>   Version table:
>      2.17.3+dfsg-3 500
>         500 http://deb.debian.org/debian testing/main amd64 Packages
>         500 http://deb.debian.org/debian sid/main amd64 Packages
>  *** 2.17.3+dfsg-2 990
>         990 http://deb.debian.org/debian bullseye/main amd64 Packages
>         100 /var/lib/dpkg/status

> # apt-cache policy libbotan-2-18
> libbotan-2-18:
>   Installed: (none)
>   Candidate: 2.18.1+dfsg-3
>   Version table:
>      2.18.1+dfsg-3 500
>         500 http://deb.debian.org/debian testing/main amd64 Packages
>         500 http://deb.debian.org/debian sid/main amd64 Packages

> # aptitude install thunderbird
> The following NEW packages will be installed:
>   libbotan-2-18{a}
> The following packages will be REMOVED:
>   libbotan-2-17{u}
> The following packages will be upgraded:
>   thunderbird
> 1 packages upgraded, 1 newly installed, 1 to remove and 9 not upgraded.
> Need to get 0 B/44.1 MB of archives. After unpacking 16.4 kB will be 
> freed.
> Do you want to continue? [Y/n/?]

Again, it's trying to install thunderbird from sid!  Which is the only 
one that depends on libbotan-2-18.

It's probably a bad idea to mix security updates and testing (i just 
added sid to the sources because i want to know what's available, but 
not install anything from there... yet).
But i'd like some insight into what it's doing and why.
Thanks for any insight.

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Thread

Package priority puzzlement craig duncan <gunkilatur@gmail.com> - 2021-09-15 01:20 +0200
  Re: Package priority puzzlement The Wanderer <wanderer@fastmail.fm> - 2021-09-15 05:00 +0200
    Re: Package priority puzzlement craig duncan <gunkilatur@gmail.com> - 2021-09-15 08:30 +0200
      Re: Package priority puzzlement Andrei POPESCU <andreimpopescu@gmail.com> - 2021-09-16 06:20 +0200

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