As Adam wrote, that is documented and by design: The order of sources determines the source for a given package version.
** Changed in: apt (Ubuntu) Status: New => Opinion -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1516855 Title: apt shows downloads from -proposed pocket when it should use -updates pocket Status in apt package in Ubuntu: Opinion 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@hunt:/var/cache/apt$ sudo apt-get -us dist-upgrade | grep prop sarnold@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@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@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@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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1516855/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp