[Bug 1516855] Re: apt shows downloads from -proposed pocket when it should use -updates pocket

Adam Conrad adconrad at 0c3.net
Sun Mar 13 18:40:21 UTC 2016 

apt selects which mirror/repo to download from based on their position
in sources.list.  If two mirrors contain the identical file, the first
one will be picked, even if it's not actually the one that would win
according to apt-cache policy.  This is by design (based on the idea
that you'll place closer/faster mirrors first), but I can see how it's
disconcerting in this case.

(We take advantage of this same feature in our default sources.list by
always placing -updates before security, so people only fall back to the
security mirror if their local updates is lagging behind).

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Title:
  apt shows downloads from -proposed pocket when it should use -updates
  pocket

Status in apt package in Ubuntu:
  New

Bug description:
  I wanted to test an SRU kernel in -proposed; as suggested by the Wiki
  page, I used the following apt preferences to pin the trusty-proposed
  pocket to a lower priority:

  $ cat /etc/apt/preferences.d/proposed-updates 
  Package: *
  Pin: release a=trusty-proposed
  Pin-Priority: 400

  After installing the kernel package, I started a normal update.

  apt-get -us dist-upgrade didn't show any updates coming via proposed,
  but the actual apt-get -u dist-upgrade claimed the packages were
  coming from trusty-proposed all the same:

  sarnold at hunt:/var/cache/apt$ sudo apt-get -us dist-upgrade | grep prop
  sarnold at hunt:/var/cache/apt$ sudo apt-get -u dist-upgrade
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Calculating upgrade... Done
  The following packages were automatically installed and are no longer required:
    linux-headers-3.13.0-66 linux-headers-3.13.0-66-generic
    linux-image-3.13.0-66-generic linux-image-extra-3.13.0-66-generic
    linux-tools-3.13.0-66 linux-tools-3.13.0-66-generic
  Use 'apt-get autoremove' to remove them.
  The following NEW packages will be installed:
    linux-headers-3.13.0-68 linux-headers-3.13.0-68-generic
    linux-image-3.13.0-68-generic linux-image-extra-3.13.0-68-generic
    linux-tools-3.13.0-68 linux-tools-3.13.0-68-generic squashfs-tools
  The following packages will be upgraded:
    apport apport-gtk click-reviewers-tools debootstrap firefox
    firefox-locale-en flashplugin-installer fonts-opensymbol grub-common grub-pc
    grub-pc-bin grub2-common krb5-locales libgssapi-krb5-2 libido3-0.1-0
    libk5crypto3 libkrb5-3 libkrb5support0 libnautilus-extension1a
    libreoffice-avmedia-backend-gstreamer libreoffice-base-core libreoffice-calc
    libreoffice-common libreoffice-core libreoffice-draw libreoffice-gnome
    libreoffice-gtk libreoffice-impress libreoffice-math libreoffice-ogltrans
    libreoffice-pdfimport libreoffice-presentation-minimizer
    libreoffice-style-human libreoffice-style-tango libreoffice-writer
    libxen-4.4 libxenstore3.0 libxml2 libxml2-dev libxml2-utils linux-firmware
    linux-generic linux-headers-generic linux-image-generic linux-libc-dev
    linux-tools-common linux-tools-generic nautilus nautilus-data
    notify-osd-icons python-apport python-libxml2 python-problem-report
    python3-apport python3-problem-report python3-uno unity-settings-daemon
    uno-libs3 unzip ure wpasupplicant
  61 upgraded, 7 newly installed, 0 to remove and 0 not upgraded.
  Need to get 167 MB/213 MB of archives.
  After this operation, 276 MB of additional disk space will be used.
  Do you want to continue? [Y/n] 
  Err http://mirror.pnl.gov/ubuntu/ trusty-updates/main libxml2 amd64 2.9.1+dfsg1-3ubuntu4.5
    403  Forbidden
  Get:1 http://security.ubuntu.com/ubuntu/ trusty-security/main libxml2 amd64 2.9.1+dfsg1-3ubuntu4.5 [571 kB]
  Err http://mirror.pnl.gov/ubuntu/ trusty-updates/main grub-common amd64 2.02~beta2-9ubuntu1.4
    403  Forbidden
  Get:2 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main grub-common amd64 2.02~beta2-9ubuntu1.4 [1,676 kB]
  Err http://mirror.pnl.gov/ubuntu/ trusty/main squashfs-tools amd64 1:4.2+20130409-2
    403  Forbidden
  Get:3 http://security.ubuntu.com/ubuntu/ trusty-security/main libreoffice-calc amd64 1:4.2.8-0ubuntu3 [5,940 kB]
  Get:4 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main python3-problem-report all 2.14.1-0ubuntu3.19 [9,748 B]
  Get:5 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main python3-apport all 2.14.1-0ubuntu3.19 [75.3 kB]
  Get:6 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main apport all 2.14.1-0ubuntu3.19 [182 kB]
  Get:7 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main apport-gtk all 2.14.1-0ubuntu3.19 [9,558 B]
  Get:8 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main libnautilus-extension1a amd64 1:3.10.1-0ubuntu9.11 [52.1 kB]
  Get:9 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main linux-firmware all 1.127.18 [24.4 MB]
  Get:10 http://security.ubuntu.com/ubuntu/ trusty-security/main libreoffice-gnome amd64 1:4.2.8-0ubuntu3 [90.2 kB]
  Get:11 http://security.ubuntu.com/ubuntu/ trusty-security/main libreoffice-gtk amd64 1:4.2.8-0ubuntu3 [222 kB]
  Get:12 http://security.ubuntu.com/ubuntu/ trusty-security/main libreoffice-impress amd64 1:4.2.8-0ubuntu3 [1,208 kB]
  Get:13 http://security.ubuntu.com/ubuntu/ trusty-security/main libreoffice-writer amd64 1:4.2.8-0ubuntu3 [9,452 kB]
  10% [9 linux-firmware 5,524 kB/24.4 MB 23%] [13 libreoffice-writer 682 kB/9,452^C

  Spot-checking the packages shows that this is entirely cosmetic:
  sarnold at hunt:/var/cache/apt$ apt-cache policy linux-firmware
  linux-firmware:
    Installed: 1.127.16
    Candidate: 1.127.18
    Version table:
       1.127.18 0
          500 http://mirror.pnl.gov/ubuntu/ trusty-updates/main amd64 Packages
          400 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main amd64 Packages
   *** 1.127.16 0
          500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
          100 /var/lib/dpkg/status
       1.127 0
          500 http://mirror.pnl.gov/ubuntu/ trusty/main amd64 Packages
  sarnold at hunt:/var/cache/apt$ apt-cache policy python3-apport
  python3-apport:
    Installed: 2.14.1-0ubuntu3.18
    Candidate: 2.14.1-0ubuntu3.19
    Version table:
       2.14.1-0ubuntu3.19 0
          500 http://mirror.pnl.gov/ubuntu/ trusty-updates/main amd64 Packages
          400 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main amd64 Packages
   *** 2.14.1-0ubuntu3.18 0
          500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
          100 /var/lib/dpkg/status
       2.14.1-0ubuntu3 0
          500 http://mirror.pnl.gov/ubuntu/ trusty/main amd64 Packages
  sarnold at hunt:/var/cache/apt$ 

  
  But it is certainly enough to make me ^C the download and inspect what's going on.

  Thanks

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: apt 1.0.1ubuntu2.10
  ProcVersionSignature: Ubuntu 3.13.0-67.110-generic 3.13.11-ckt27
  Uname: Linux 3.13.0-67-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.18
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Nov 16 18:22:13 2015
  InstallationDate: Installed on 2012-10-18 (1124 days ago)
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  SourcePackage: apt
  UpgradeStatus: Upgraded to trusty on 2014-04-12 (584 days ago)

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