[Bug 1583226] Re: aptitude cannot display changelog : origin of $package is unknown

[PÁLFALVI Tamás]

Made a mistake in the previous patch. It should only affect logging, as
far as I can tell, but I shouldn't break that either. Fixed the error,
made a new debdiff - I'm sorry I wasn't more careful the first time
around.

** Patch added: "fixed debdiff against aptitude 0.8.3-1ubuntu1"
   https://bugs.launchpad.net/ubuntu/+source/aptitude/+bug/1583226/+attachment/4766663/+files/aptitude-fixed.debdiff

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Title:
  aptitude cannot display changelog : origin of $package is unknown

Status in aptitude package in Ubuntu:
  Confirmed

Bug description:
  After upgrading to Yakkety and changed sources.list, aptitude is unable to retrieve packages changelogs.
  It states an error message :

  root at server:~$ aptitude changelog ubuntu-desktop
  E: Cannot display changelog: Origin of ubuntu-desktop version 1.362 is unknown (maybe not an official Debian package; if it is, try to "update" package lists)

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: aptitude 0.8-1ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  ApportVersion: 2.20.1-0ubuntu4
  Architecture: amd64
  Date: Wed May 18 17:28:58 2016
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-01-27 (477 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: aptitude
  UpgradeStatus: Upgraded to yakkety on 2015-11-16 (184 days ago)

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