[Bug 1560797] Re: apt does not configure Pre-Depends: before depending package

[Brian Visel]

I am having this issue right now.  Before updating, I did:

    sudo apt-get-update
    sudo apt-get dist-upgrade

..and then launched Software Updater.

However, it seems that the newest version of the software updater didn't
install for whatever reason.  As the install is running, if I do:

    $ apt-cache policy ubuntu-release-upgrader-core
    ubuntu-release-upgrader-core:
      Installed: 1:15.10.14.4
      Candidate: 1:16.04.14
      Version table:
         1:16.04.14 500
            500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
            500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main i386 Packages
         1:16.04.12 500
            500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
            500 http://us.archive.ubuntu.com/ubuntu xenial/main i386 Packages
     *** 1:15.10.14.4 100
            100 /var/lib/dpkg/status

..so obviously the software updater somehow escaped getting updated, so
I got the version with the bug still.

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Title:
  apt does not configure Pre-Depends: before depending package

Status in apt package in Ubuntu:
  Fix Released
Status in ubuntu-release-upgrader package in Ubuntu:
  Confirmed
Status in apt source package in Trusty:
  Fix Released
Status in apt source package in Wily:
  Fix Released
Status in apt source package in Xenial:
  Fix Released
Status in ubuntu-release-upgrader source package in Xenial:
  Fix Released

Bug description:
  Happened during upgrade to 16.04, don't know any more details.

  --
  SRU INFORMATION
  ===============
  Fix: https://anonscm.debian.org/cgit/apt/apt.git/commit/?id=c75e60eb (applied in Xenial last week)

  Test case:
   - Install clean wily amd64 desktop + install libgcrypt20:i386
   - change apt sources to xenial, apt-get dist-upgrade
   - with current apt, upgrade will often fail because systemd expects a configure libgcrypt20, or util-linux expects a configured libudev1 or similar, but these packages aren't configured.
   - with the fixed apt, the upgrade should run smoothly.

  Regression potential: Any bug here might potentially break package
  installation or upgrades completely. That said, the fix is quite
  obvious and has been in production in xenial for a week. Testing this
  SRU should include several dist-upgrades as well as some normal
  package installs in trusty/wily.


  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: systemd-sysv 225-1ubuntu9.1
  Uname: Linux 4.4.5-040405-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  Date: Tue Mar 22 22:56:03 2016
  ErrorMessage: pre-dependency problem - not installing systemd-sysv
  InstallationDate: Installed on 2013-04-24 (1064 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1
   apt  1.2.7
  SourcePackage: systemd
  Title: package systemd-sysv 225-1ubuntu9.1 failed to install/upgrade: pre-dependency problem - not installing systemd-sysv
  UpgradeStatus: Upgraded to xenial on 2016-03-23 (0 days ago)

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