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[Simon Poirier <1886491@xxxxxxxxxxxxxxxxxx>]

Subsequent releases already had this corrected. I have updated the task
status.

** Changed in: landscape-client (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1886491

Title:
  Applying package profile on Xenial doesn't work

Status in landscape-client package in Ubuntu:
  Fix Released
Status in landscape-client source package in Xenial:
  Fix Committed

Bug description:
  
  [Impact] 

   * Users trying to apply a landscape package profile with a recent
  version of python-apt on xenial will get a stuck activity and an
  incomplete sources.list.d entry.

   * The change adds a [trusted=yes] option to temporary local sources
  created by landscape. Global sources and apt options

  
  [Test Case]

   * install landscape-client and register it.

   * create and associate a package profile.

   * the packages are installed and /var/log/landscape/package-
  changer.log has no errors

  
  [Regression Potential] 

   * This is a backport of fixes already released since yakkety. The
  change has been released for a long time.

   * Change is agnostic of whether the issue is present or not and
  should work no matter the apt configuration.

   * The affected code path is limited to profiles, but is also used a lot in unit tests fixtures, thus making it reasonably exercised.
     

  [Other Info]
   
   * This change was not previously required on xenial, as it was not required. Acquire::AllowInsecureRepositories was set to be backward compatible and was accepted by python-apt. Changes in python-apt now looks for APT::Get::AllowUnauthenticated.

   * We fix landcape-client instead of raising the python-apt regression
  because the new behaviour is consistent with later releases, which we
  already handle. Also, it decouples landscape from requiring specific
  configuration.


  [Original Description]
   * install landscape-server-quickstart and landscape-api
   * Create a package profile "minimum packages" and add basic packages (byobu, vim, ubuntu-cloud-keyring). Enable for all computers
   * create a xenial container or machine and install/configure landscape-client

  Note that the apply package profile gets stuck and doesn't progress.
  On the container that was created, running apt update shows:

  sudo apt update
  Get:1 file:/var/lib/landscape/client/package/binaries ./ InRelease
  Ign:1 file:/var/lib/landscape/client/package/binaries ./ InRelease
  Get:2 file:/var/lib/landscape/client/package/binaries ./ Release
  Err:2 file:/var/lib/landscape/client/package/binaries ./ Release
    File not found - /var/lib/landscape/client/package/binaries/./Release (2: No such file or directory)
  Get:3 http://mirror/ubuntu xenial InRelease [247 kB]
  Hit:4 http://mirror/ubuntu xenial-updates InRelease
  Hit:5 http://mirror/ubuntu xenial-backports InRelease
  Hit:6 http://mirror/ubuntu xenial-security InRelease
  Reading package lists... Done
  E: The repository 'file:/var/lib/landscape/client/package/binaries ./ Release' does not have a Release file.
  N: Updating from such a repository can't be done securely, and is therefore disabled by default.
  N: See apt-secure(8) manpage for repository creation and user configuration details.

  apt-cache policy landscape-client
  landscape-client:
    Installed: 16.03-0ubuntu2.16.04.7
    Candidate: 16.03-0ubuntu2.16.04.7
    Version table:
   *** 16.03-0ubuntu2.16.04.7 500
          500 http://mirror/ubuntu xenial-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       16.03-0ubuntu2 500
          500 http://mirror/ubuntu xenial/main amd64 Packages

  This can be easily worked around by:
   * Remove the file /etc/apt/sources.list.d/_landscape-internal-facade.list
   * add-apt-repository ppa:landscape/19.01
   * apt install landscape-client

  apt-cache policy landscape-client
  landscape-client:
    Installed: 18.03~1070~git.8e52e1d~ubuntu16.04.1
    Candidate: 18.03~1070~git.8e52e1d~ubuntu16.04.1
    Version table:
   *** 18.03~1070~git.8e52e1d~ubuntu16.04.1 500
          500 http://ppa.launchpad.net/landscape/19.01/ubuntu xenial/main amd64 Packages
          100 /var/lib/dpkg/status
       16.03-0ubuntu2.16.04.7 500
          500 http://mirror.glacier.dev/ubuntu xenial-updates/main amd64 Packages
       16.03-0ubuntu2 500
          500 http://mirror.glacier.dev/ubuntu xenial/main amd64 Packages

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