[Bug 1611737] Re: Can't upgrade from a release if ros packages are installed from ROS servers

[Jose Luis Rivero]

Before going down into particular cases, I would like to point that
every ROS Release supports only a few subset of the Ubuntu distributions
(see REP3 http://www.ros.org/reps/rep-0003.html#platforms-by-
distribution).

This makes some upgrades technically not possible since there could not
be packages in the ROS repositories available for the new distribution
in an upgrade process. For example, there is no a single ROS Release
that support 14.04 and 16.04. I can not see a safe/straightforward
upgrade path.

If this is not the case, from Open Robotics we are happy help if
something can be done in ROS packages or repositories.

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https://bugs.launchpad.net/bugs/1611737

Title:
  Can't upgrade from a release if ros packages are  installed from ROS
  servers

Status in ubuntu-release-upgrader package in Ubuntu:
  Confirmed

Bug description:
  This message was appear when upgrade

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.19.0-66.74~14.04.1-generic 3.19.8-ckt22
  Uname: Linux 3.19.0-66-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.21
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Wed Aug 10 18:41:24 2016
  InstallationDate: Installed on 2015-09-08 (336 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-08-10 (0 days ago)

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