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Bug#695352: marked as done (apt: incorrect behavior/documentation concerning foreign architectures for sources.list / apt-get update)

Your message dated Fri, 2 Dec 2016 19:10:59 +0100
with message-id <20161202181059.dvqe7ggpqxf4rv3e@crossbow>
and subject line Re: Bug#695352: apt: incorrect behavior/documentation concerning foreign architectures for sources.list / apt-get update
has caused the Debian Bug report #695352,
regarding apt: incorrect behavior/documentation concerning foreign architectures for sources.list / apt-get update
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
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-- 
695352: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=695352
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: apt
Version: 0.9.7.6
Severity: normal

In order to get i386 packages from unstable on my amd64 machine,
I added the following line to /etc/apt/sources.list according to
what the sourceslist(5) man page says:

deb [ arch=i386 ] http://ftp.debian.org/debian/ unstable main contrib non-free

But after that and "apt-get update", I still got:

# apt-get install libc6-dbg:i386
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libc6-dbg

I've been suggested to run "dpkg --add-architecture i386". Then after
an "apt-get update", "apt-get install libc6-dbg:i386" works, but there
are several drawbacks:

1. All i386 Packages files are downloaded by "apt-get update", not
just those in unstable ("dpkg --add-architecture i386" adds i386
to APT::Architectures, hence the problem).

2. I get warnings at the end of "apt-get update":

W: Duplicate sources.list entry http://ftp.debian.org/debian/ unstable/main i386 Packages (/var/lib/apt/lists/ftp.debian.org_debian_dists_unstable_main_binary-i386_Packages)
W: Duplicate sources.list entry http://ftp.debian.org/debian/ unstable/contrib i386 Packages (/var/lib/apt/lists/ftp.debian.org_debian_dists_unstable_contrib_binary-i386_Packages)
W: Duplicate sources.list entry http://ftp.debian.org/debian/ unstable/non-free i386 Packages (/var/lib/apt/lists/ftp.debian.org_debian_dists_unstable_non-free_binary-i386_Packages)
W: You may want to run apt-get update to correct these problems

This may be due to the above line I added, but this isn't really
a duplicate as one may want to specify i386 explicitly in the
/etc/apt/sources.list file. The last line "You may want to run
apt-get update to correct these problems" is incorrect (running
"apt-get update" should never output such a message, since it
suggests to do what one has just done).

Anyway since i386 was specified explicitly in the deb line above,
adding i386 to APT::Architectures via "dpkg --add-architecture i386"
should not have been necessary. If there is anything else to do
without using "dpkg --add-architecture i386" (to avoid its drawbacks),
then it should be documented.

-- Package-specific info:

-- apt-config dump --

APT "";
APT::Architecture "amd64";
APT::Build-Essential "";
APT::Build-Essential:: "build-essential";
APT::Install-Recommends "1";
APT::Install-Suggests "0";
APT::Authentication "";
APT::Authentication::TrustCDROM "true";
APT::NeverAutoRemove "";
APT::NeverAutoRemove:: "^firmware-linux.*";
APT::NeverAutoRemove:: "^linux-firmware$";
APT::NeverAutoRemove:: "^linux-image.*";
APT::NeverAutoRemove:: "^kfreebsd-image.*";
APT::NeverAutoRemove:: "^linux-restricted-modules.*";
APT::NeverAutoRemove:: "^linux-ubuntu-modules-.*";
APT::NeverAutoRemove:: "^gnumach$";
APT::NeverAutoRemove:: "^gnumach-image.*";
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::Cache-Limit "67108864";
APT::Update "";
APT::Update::Post-Invoke-Success "";
APT::Update::Post-Invoke-Success:: "test -x /usr/bin/apt-show-versions || exit 0 ; apt-show-versions -i";
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 1 --method org.freedesktop.PackageKit.StateHasChanged cache-update > /dev/null; /bin/echo > /dev/null";
APT::Architectures "";
APT::Architectures:: "amd64";
APT::Architectures:: "i386";
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";
APT::Compressor::::Name "";
APT::Compressor::::Extension ".";
APT::Compressor::::Binary "";
APT::Compressor::::Cost "100";
APT::Compressor::::CompressArg "";
APT::Compressor::::CompressArg:: "-9";
APT::Compressor::::UncompressArg "";
APT::Compressor::::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::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$";
Dir::Ignore-Files-Silently:: "\.orig$";
Acquire "";
Acquire::cdrom "";
Acquire::cdrom::mount "/media/cdrom/";
Acquire::Languages "";
Acquire::Languages:: "en";
Acquire::Languages:: "none";
DPkg "";
DPkg::Pre-Install-Pkgs "";
DPkg::Pre-Install-Pkgs:: "/usr/sbin/apt-listbugs apt || exit 10";
DPkg::Pre-Install-Pkgs:: "/usr/bin/apt-listchanges --apt";
DPkg::Pre-Install-Pkgs:: "/usr/sbin/dpkg-preconfigure --apt || true";
DPkg::Tools "";
DPkg::Tools::Options "";
DPkg::Tools::Options::/usr/sbin/apt-listbugs "";
DPkg::Tools::Options::/usr/sbin/apt-listbugs::Version "2";
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 1 --method org.freedesktop.PackageKit.StateHasChanged cache-update > /dev/null; /bin/echo > /dev/null";
AptListbugs "";
AptListbugs::IgnoreRegexp "FTBFS";
Aptitude "";
Aptitude::UI "";
Aptitude::UI::Package-Display-Format "%c%a%M %p %Z %24v %24V";
Unattended-Upgrade "";
Unattended-Upgrade::Origins-Pattern "";
Unattended-Upgrade::Origins-Pattern:: "origin=Debian,archive=stable,label=Debian-Security";
CommandLine "";
CommandLine::AsString "apt-config dump";

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


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

# 
# deb cdrom:[Debian GNU/Linux testing _Squeeze_ - Official Snapshot amd64 NETINST Binary-1 20100103-21:31]/ squeeze main

#deb cdrom:[Debian GNU/Linux testing _Squeeze_ - Official Snapshot amd64 NETINST Binary-1 20100103-21:31]/ squeeze main

deb http://ftp.debian.org/debian/ squeeze main contrib non-free
deb-src http://ftp.debian.org/debian/ squeeze main contrib non-free

deb http://security.debian.org/ squeeze/updates main contrib non-free
deb-src http://security.debian.org/ squeeze/updates main contrib non-free

deb http://ftp.debian.org/debian/ testing main contrib non-free
deb-src http://ftp.debian.org/debian/ testing main contrib non-free

deb http://ftp.debian.org/debian/ unstable main contrib non-free
deb-src http://ftp.debian.org/debian/ unstable main contrib non-free

deb http://ftp.debian.org/debian/ experimental main
deb-src http://ftp.debian.org/debian/ experimental main

deb [ arch=i386 ] http://ftp.debian.org/debian/ unstable main contrib non-free

#deb http://mozilla.debian.net/ experimental iceweasel-aurora

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.2.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.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                   1.4.12-6
ii  libapt-pkg4.12          0.9.7.6
ii  libc6                   2.13-37
ii  libgcc1                 1:4.7.2-4
ii  libstdc++6              4.7.2-4

apt recommends no packages.

Versions of packages apt suggests:
ii  apt-doc     0.9.7.6
ii  aptitude    0.6.8.2-1
ii  dpkg-dev    1.16.9
ii  python-apt  0.8.8.1
ii  synaptic    0.75.13
ii  xz-utils    5.1.1alpha+20120614-2

-- no debconf information

--- End Message ---
--- Begin Message --- 
Hi,

On Mon, Dec 31, 2012 at 03:35:20PM -0500, Samuel Bronson wrote:
> It seems fairly clear, then, that dpkg itself really won't be happy
> unless you actually run "dpkg --add-architecture i386", so it's

Indeed, to actually install a package dpkg needs to know that your
system can handle it – so the bug is a sort-of user configuration error
we can't really do anything about as the configuration error is
indistinguishable from an experienced user doing this intentionally.


> reasonable for apt to act the same way.

Maybe, nowadays it works through – as in it will display information
about the packages from these "unknown" architectures and co. I am
actually using this often… (see excperienced user above).

As such the page as much as it made sense back then isn't true anymore
(and wasn't really back then either as it would have documented a bug,
not the intended result).

So, closing as part user error part done.


Best regards

David Kalnischkies

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