Bug#759194: marked as done (apt: wrong version selection with "-t stable")

To: David Kalnischkies <david@kalnischkies.de>
Subject: Bug#759194: marked as done (apt: wrong version selection with "-t stable")
From: owner@bugs.debian.org (Debian Bug Tracking System)
Date: Thu, 28 Aug 2014 14:30:05 +0000
Message-id: <[🔎] handler.759194.D759194.140923609118080.ackdone@bugs.debian.org>
References: <20140828142758.GC10129@crossbow> <[🔎] 20140825065359.GA7395@cacao.linbit>

Your message dated Thu, 28 Aug 2014 16:27:58 +0200
with message-id <20140828142758.GC10129@crossbow>
and subject line Re: Bug#759194: apt: wrong version selection with "-t stable"
has caused the Debian Bug report #759194,
regarding apt: wrong version selection with "-t stable"
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
759194: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759194
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

--- Begin Message ---

To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: apt: wrong version selection with "-t stable"
From: "Ph. Marek" <philipp.marek@linbit.com>
Date: Mon, 25 Aug 2014 08:54:01 +0200
Message-id: <[🔎] 20140825065359.GA7395@cacao.linbit>

Package: apt
Version: 1.1~exp2
Severity: minor

With apt 1.0.6 and 1.1~ I see some strange package selection behaviour.

It started with this:
    $ LC_ALL=C apt-get dist-upgrade -s | grep upgraded,
    233 upgraded, 21 newly installed, 1 to remove and 3 not upgraded.

But if I choose the "older" release
    $ LC_ALL=C apt-get dist-upgrade -s -t stable | grep upgraded,
    974 upgraded, 34 newly installed, 4 to remove and 3 not upgraded.


Some more testing finally showed this:
    $ LC_ALL=C apt-cache policy grub-common 
    grub-common:
      Installed: 2.00-22
      Candidate: 2.00-22
      Version table:
         2.02~beta2-11 0
            500 http://http.debian.net/debian/ unstable/main amd64 Packages
     *** 2.00-22 0
            990 http://http.debian.net/debian/ testing/main amd64 Packages
            100 /var/lib/dpkg/status
         1.99-27+deb7u2 0
            500 http://http.debian.net/debian/ stable/main amd64 Packages

but
    $ LC_ALL=C apt-cache policy grub-common -t stable
    grub-common:
      Installed: 2.00-22
      Candidate: 2.02~beta2-11
    ...


So it looks as if the wrong target release gets chosen with "-t stable";
maybe because "stable" is a substring of "unstable"?


Perhaps this is the same bug as the (unanswered) #746412:
    apt: option -t does not always work



-- Package-specific info:

-- apt-config dump --

APT "";
APT::Architecture "amd64";
APT::Build-Essential "";
APT::Build-Essential:: "build-essential";
APT::Install-Recommends "true";
APT::Install-Suggests "0";
APT::Authentication "";
APT::Authentication::TrustCDROM "true";
APT::NeverAutoRemove "";
APT::NeverAutoRemove:: "^firmware-linux.*";
APT::NeverAutoRemove:: "^linux-firmware$";
APT::NeverAutoRemove:: "^linux-image-3\.14-1-amd64$";
APT::NeverAutoRemove:: "^linux-image-3\.14-2-amd64$";
APT::NeverAutoRemove:: "^linux-headers-3\.14-1-amd64$";
APT::NeverAutoRemove:: "^linux-headers-3\.14-2-amd64$";
APT::NeverAutoRemove:: "^linux-image-extra-3\.14-1-amd64$";
APT::NeverAutoRemove:: "^linux-image-extra-3\.14-2-amd64$";
APT::NeverAutoRemove:: "^linux-signed-image-3\.14-1-amd64$";
APT::NeverAutoRemove:: "^linux-signed-image-3\.14-2-amd64$";
APT::NeverAutoRemove:: "^kfreebsd-image-3\.14-1-amd64$";
APT::NeverAutoRemove:: "^kfreebsd-image-3\.14-2-amd64$";
APT::NeverAutoRemove:: "^kfreebsd-headers-3\.14-1-amd64$";
APT::NeverAutoRemove:: "^kfreebsd-headers-3\.14-2-amd64$";
APT::NeverAutoRemove:: "^gnumach-image-3\.14-1-amd64$";
APT::NeverAutoRemove:: "^gnumach-image-3\.14-2-amd64$";
APT::NeverAutoRemove:: "^.*-modules-3\.14-1-amd64$";
APT::NeverAutoRemove:: "^.*-modules-3\.14-2-amd64$";
APT::NeverAutoRemove:: "^.*-kernel-3\.14-1-amd64$";
APT::NeverAutoRemove:: "^.*-kernel-3\.14-2-amd64$";
APT::NeverAutoRemove:: "^linux-backports-modules-.*-3\.14-1-amd64$";
APT::NeverAutoRemove:: "^linux-backports-modules-.*-3\.14-2-amd64$";
APT::NeverAutoRemove:: "^linux-tools-3\.14-1-amd64$";
APT::NeverAutoRemove:: "^linux-tools-3\.14-2-amd64$";
APT::NeverAutoRemove:: "^postgresql-";
APT::VersionedKernelPackages "";
APT::VersionedKernelPackages:: "linux-image";
APT::VersionedKernelPackages:: "linux-headers";
APT::VersionedKernelPackages:: "linux-image-extra";
APT::VersionedKernelPackages:: "linux-signed-image";
APT::VersionedKernelPackages:: "kfreebsd-image";
APT::VersionedKernelPackages:: "kfreebsd-headers";
APT::VersionedKernelPackages:: "gnumach-image";
APT::VersionedKernelPackages:: ".*-modules";
APT::VersionedKernelPackages:: ".*-kernel";
APT::VersionedKernelPackages:: "linux-backports-modules-.*";
APT::VersionedKernelPackages:: "linux-tools";
APT::Never-MarkAuto-Sections "";
APT::Never-MarkAuto-Sections:: "metapackages";
APT::Never-MarkAuto-Sections:: "restricted/metapackages";
APT::Never-MarkAuto-Sections:: "universe/metapackages";
APT::Never-MarkAuto-Sections:: "multiverse/metapackages";
APT::Never-MarkAuto-Sections:: "oldlibs";
APT::Never-MarkAuto-Sections:: "restricted/oldlibs";
APT::Never-MarkAuto-Sections:: "universe/oldlibs";
APT::Never-MarkAuto-Sections:: "multiverse/oldlibs";
APT::Periodic "";
APT::Periodic::Update-Package-Lists "1";
APT::Periodic::Download-Upgradeable-Packages "0";
APT::Periodic::AutocleanInterval "0";
APT::Update "";
APT::Update::Post-Invoke "";
APT::Update::Post-Invoke:: "touch /var/lib/apt/periodic/update-success-stamp 2>/dev/null || true";
APT::Update::Post-Invoke:: "[ ! -x /usr/bin/debtags ] || debtags update --local || true";
APT::Update::Post-Invoke-Success "";
APT::Update::Post-Invoke-Success:: "[ ! -f /var/run/dbus/system_bus_socket ] || /usr/bin/dbus-send --system --dest=org.debian.apt --type=signal /org/debian/apt org.debian.apt.CacheChanged || true";
APT::Update::Post-Invoke-Success:: "/usr/bin/test -e /usr/share/dbus-1/system-services/org.freedesktop.PackageKit.service && /usr/bin/test -S /var/run/dbus/system_bus_socket && /usr/bin/gdbus call --system --dest org.freedesktop.PackageKit --object-path /org/freedesktop/PackageKit --timeout 4 --method org.freedesktop.PackageKit.StateHasChanged cache-update > /dev/null; /bin/echo > /dev/null";
APT::Archives "";
APT::Archives::MaxAge "30";
APT::Archives::MinAge "2";
APT::Archives::MaxSize "500";
APT::Default-Release "testing";
APT::Architectures "";
APT::Architectures:: "amd64";
APT::Compressor "";
APT::Compressor::. "";
APT::Compressor::.::Name ".";
APT::Compressor::.::Extension "";
APT::Compressor::.::Binary "";
APT::Compressor::.::Cost "1";
APT::Compressor::gzip "";
APT::Compressor::gzip::Name "gzip";
APT::Compressor::gzip::Extension ".gz";
APT::Compressor::gzip::Binary "gzip";
APT::Compressor::gzip::Cost "2";
APT::Compressor::gzip::CompressArg "";
APT::Compressor::gzip::CompressArg:: "-9n";
APT::Compressor::gzip::UncompressArg "";
APT::Compressor::gzip::UncompressArg:: "-d";
APT::Compressor::bzip2 "";
APT::Compressor::bzip2::Name "bzip2";
APT::Compressor::bzip2::Extension ".bz2";
APT::Compressor::bzip2::Binary "bzip2";
APT::Compressor::bzip2::Cost "3";
APT::Compressor::bzip2::CompressArg "";
APT::Compressor::bzip2::CompressArg:: "-9";
APT::Compressor::bzip2::UncompressArg "";
APT::Compressor::bzip2::UncompressArg:: "-d";
APT::Compressor::xz "";
APT::Compressor::xz::Name "xz";
APT::Compressor::xz::Extension ".xz";
APT::Compressor::xz::Binary "xz";
APT::Compressor::xz::Cost "4";
APT::Compressor::xz::CompressArg "";
APT::Compressor::xz::CompressArg:: "-6";
APT::Compressor::xz::UncompressArg "";
APT::Compressor::xz::UncompressArg:: "-d";
APT::Compressor::lzma "";
APT::Compressor::lzma::Name "lzma";
APT::Compressor::lzma::Extension ".lzma";
APT::Compressor::lzma::Binary "xz";
APT::Compressor::lzma::Cost "5";
APT::Compressor::lzma::CompressArg "";
APT::Compressor::lzma::CompressArg:: "--format=lzma";
APT::Compressor::lzma::CompressArg:: "-9";
APT::Compressor::lzma::UncompressArg "";
APT::Compressor::lzma::UncompressArg:: "--format=lzma";
APT::Compressor::lzma::UncompressArg:: "-d";
Dir "/";
Dir::State "var/lib/apt/";
Dir::State::lists "lists/";
Dir::State::cdroms "cdroms.list";
Dir::State::mirrors "mirrors/";
Dir::State::extended_states "extended_states";
Dir::State::status "/var/lib/dpkg/status";
Dir::Cache "var/cache/apt/";
Dir::Cache::archives "archives/";
Dir::Cache::srcpkgcache "srcpkgcache.bin";
Dir::Cache::pkgcache "pkgcache.bin";
Dir::Etc "etc/apt/";
Dir::Etc::sourcelist "sources.list";
Dir::Etc::sourceparts "sources.list.d";
Dir::Etc::vendorlist "vendors.list";
Dir::Etc::vendorparts "vendors.list.d";
Dir::Etc::main "apt.conf";
Dir::Etc::netrc "auth.conf";
Dir::Etc::parts "apt.conf.d";
Dir::Etc::preferences "preferences";
Dir::Etc::preferencesparts "preferences.d";
Dir::Etc::trusted "trusted.gpg";
Dir::Etc::trustedparts "trusted.gpg.d";
Dir::Bin "";
Dir::Bin::methods "/usr/lib/apt/methods";
Dir::Bin::solvers "";
Dir::Bin::solvers:: "/usr/lib/apt/solvers";
Dir::Bin::dpkg "/usr/bin/dpkg";
Dir::Bin::bzip2 "/bin/bzip2";
Dir::Bin::xz "/usr/bin/xz";
Dir::Bin::lzma "/usr/bin/xz";
Dir::Media "";
Dir::Media::MountPath "/media/apt";
Dir::Log "var/log/apt";
Dir::Log::Terminal "term.log";
Dir::Log::History "history.log";
Dir::Ignore-Files-Silently "";
Dir::Ignore-Files-Silently:: "~$";
Dir::Ignore-Files-Silently:: "\.disabled$";
Dir::Ignore-Files-Silently:: "\.bak$";
Dir::Ignore-Files-Silently:: "\.dpkg-[a-z]+$";
Dir::Ignore-Files-Silently:: "\.save$";
Dir::Ignore-Files-Silently:: "\.orig$";
Dir::Ignore-Files-Silently:: "\.distUpgrade$";
Acquire "";
Acquire::cdrom "";
Acquire::cdrom::mount "/media/cdrom/";
Acquire::Languages "";
Acquire::Languages:: "en";
Acquire::Languages:: "none";
Acquire::Languages:: "de";
DPkg "";
DPkg::Pre-Install-Pkgs "";
DPkg::Pre-Install-Pkgs:: "/usr/bin/apt-listchanges --apt || test $? -ne 10";
DPkg::Pre-Install-Pkgs:: "/usr/sbin/dpkg-preconfigure --apt || true";
DPkg::Tools "";
DPkg::Tools::Options "";
DPkg::Tools::Options::/usr/bin/apt-listchanges "";
DPkg::Tools::Options::/usr/bin/apt-listchanges::Version "2";
DPkg::Post-Invoke "";
DPkg::Post-Invoke:: "/usr/bin/test -e /usr/share/dbus-1/system-services/org.freedesktop.PackageKit.service && /usr/bin/test -S /var/run/dbus/system_bus_socket && /usr/bin/gdbus call --system --dest org.freedesktop.PackageKit --object-path /org/freedesktop/PackageKit --timeout 4 --method org.freedesktop.PackageKit.StateHasChanged cache-update > /dev/null; /bin/echo > /dev/null";
DPkg::Post-Invoke:: "if [ -d /var/lib/update-notifier ]; then touch /var/lib/update-notifier/dpkg-run-stamp; fi; if [ -e /var/lib/update-notifier/updates-available ]; then echo > /var/lib/update-notifier/updates-available; fi ";
Unattended-Upgrade "";
Unattended-Upgrade::Origins-Pattern "";
Unattended-Upgrade::Origins-Pattern:: "origin=Debian,archive=${distro_codename},label=Debian-Security";
CommandLine "";
CommandLine::AsString "apt-config dump";

-- (no /etc/apt/preferences present) --


-- /etc/apt/sources.list --

deb http://http.debian.net/debian/ stable main non-free contrib
deb http://http.debian.net/debian/ testing main non-free contrib
deb http://http.debian.net/debian/ unstable main non-free contrib
deb http://http.debian.net/debian/ experimental main contrib

-- System Information:
Debian Release: jessie/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.14-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_AT.UTF-8, LC_CTYPE=de_AT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages apt depends on:
ii  debian-archive-keyring  2012.4
ii  gnupg                   1.4.18-2
ii  libapt-pkg4.13          1.1~exp2
ii  libc6                   2.19-7
ii  libgcc1                 1:4.9.1-4
ii  libstdc++6              4.9.1-4

apt recommends no packages.

Versions of packages apt suggests:
pn  apt-doc     <none>
ii  aptitude    0.6.11-1
ii  dpkg-dev    1.17.10
ii  python-apt  0.9.3.8

-- no debconf information

-- 
: Ing. Philipp Marek
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting                 http://www.linbit.com :

DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.

--- End Message ---

--- Begin Message ---

To: "Ph. Marek" <philipp.marek@linbit.com>, 759194-done@bugs.debian.org
Subject: Re: Bug#759194: apt: wrong version selection with "-t stable"
From: David Kalnischkies <david@kalnischkies.de>
Date: Thu, 28 Aug 2014 16:27:58 +0200
Message-id: <20140828142758.GC10129@crossbow>
In-reply-to: <[🔎] 20140825065359.GA7395@cacao.linbit>
References: <[🔎] 20140825065359.GA7395@cacao.linbit>

Hi Philipp,

On Mon, Aug 25, 2014 at 08:54:01AM +0200, Ph. Marek wrote:
> With apt 1.0.6 and 1.1~ I see some strange package selection behaviour.
> 
> It started with this:
>     $ LC_ALL=C apt-get dist-upgrade -s | grep upgraded,
>     233 upgraded, 21 newly installed, 1 to remove and 3 not upgraded.
> 
> But if I choose the "older" release
>     $ LC_ALL=C apt-get dist-upgrade -s -t stable | grep upgraded,
>     974 upgraded, 34 newly installed, 4 to remove and 3 not upgraded.

This is actually correct behaviour as I will explain further below, so
I am closing this bugreport with this message. Birds-eye-view reason:
APT doesn't do downgrades (at least not if you don't force it really
hard) and (implicit) apt_preferences can be complicated.

> Some more testing finally showed this:
>     $ LC_ALL=C apt-cache policy grub-common 
>     grub-common:
>       Installed: 2.00-22
>       Candidate: 2.00-22
>       Version table:
>          2.02~beta2-11 0
>             500 http://http.debian.net/debian/ unstable/main amd64 Packages
>      *** 2.00-22 0
>             990 http://http.debian.net/debian/ testing/main amd64 Packages
>             100 /var/lib/dpkg/status
>          1.99-27+deb7u2 0
>             500 http://http.debian.net/debian/ stable/main amd64 Packages
> 
> but
>     $ LC_ALL=C apt-cache policy grub-common -t stable
>     grub-common:
>       Installed: 2.00-22
>       Candidate: 2.02~beta2-11
>     ...

You actually snipped an important part, but I hope I will manage without
still. First things first: You have apt configured to have as default
release "testing", which is why in the first policy output the testing
source has a priority of 990, which is higher than the 500 of unstable,
so testing is the candidate.

Now, by switching the default release to stable, testing looses its
special perk and gets the default value of 500 as well and the stable
source gets 990. APT Looking for the candidate will pick unstable now as
it is the higher version among the equally pinned sources unstable and
testing. stable isn't considered as the version is below the currently
installed version (and the pin isn't above 1000).

Please see 'man apt_preferences' and especially the section "APT's
Default Priority Assignments" for further details.

Best regards

David Kalnischkies

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Description: Digital signature

--- End Message ---

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References:
- Bug#759194: apt: wrong version selection with "-t stable"
  - From: "Ph. Marek" <philipp.marek@linbit.com>

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