[Bug 653412] Re: Broken /var/lib/update-manager/meta-release-development file is not re-downloaded

[Robert Roth]

Thank you for your help to improve Ubuntu. I can not reproduce this behavior with Natty (update-manager 1:0.150.3) or Oneiric (update-manager 1:0.152.9) with the steps you have described. Can you reproduce this with a later version of update-manager? If you can, please give more accurate instructions on how to reproduce it.
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** Changed in: update-manager (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/653412

Title:
  Broken /var/lib/update-manager/meta-release-development file is not
  re-downloaded

Status in “update-manager” package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: update-manager

  During the upgrade process (update-manager -d) my network connection
  died and instead of the regular contents some 'helpful' HTML page from
  the wireless router ended up being written there. When I reconnected
  and restarted update-manager it wouldn't find Maverick beta even if it
  did before.

  The problem can be replicated by writing random garbage to /var/lib
  /update-manager/meta-release-development (possibly other similar files
  as well).

  Looks like update-manager/do-release-upgrade should re-download a
  meta-release file if it contents is not in the right format.

  In short:

  ~# export DEBUG_UPDATE_MANAGER=true
  ~# rm /var/lib/update-manager/meta-release-development 
  ~# echo "FOO" > /var/lib/update-manager/meta-release-development 
  ~# do-release-upgrade -d
  Checking for a new ubuntu release
  MetaRelease.__init__() useDevel=True useProposed=False
  /etc/update-manager/meta-release: http://changelogs.ubuntu.com/meta-release 
  /etc/update-manager/meta-release: http://changelogs.ubuntu.com/meta-release-lts 
  /etc/update-manager/meta-release: -development 
  /etc/update-manager/meta-release: -proposed 
  metarelease-uri: http://changelogs.ubuntu.com/meta-release-development
  MetaRelease.download()
  result of meta-release download: 'HTTP Error 304: Not Modified'
  reading file '/var/lib/update-manager/meta-release-development'
  have self.metarelease_information
  MetaRelease.parse()
  current dist name: 'lucid'
  current dist not found in meta-release file

  No new release found
  ~# rm /var/lib/update-manager/meta-release-development 
  ~# do-release-upgrade -d
  Checking for a new ubuntu release
  MetaRelease.__init__() useDevel=True useProposed=False
  /etc/update-manager/meta-release: http://changelogs.ubuntu.com/meta-release 
  /etc/update-manager/meta-release: http://changelogs.ubuntu.com/meta-release-lts 
  /etc/update-manager/meta-release: -development 
  /etc/update-manager/meta-release: -proposed 
  metarelease-uri: http://changelogs.ubuntu.com/meta-release-development
  MetaRelease.download()
  have self.metarelease_information
  MetaRelease.parse()
  current dist name: 'lucid'
  found distro name: 'warty'
  found distro name: 'hoary'
  found distro name: 'breezy'
  found distro name: 'dapper'
  found distro name: 'edgy'
  found distro name: 'feisty'
  found distro name: 'gutsy'
  found distro name: 'hardy'
  found distro name: 'intrepid'
  found distro name: 'jaunty'
  found distro name: 'karmic'
  found distro name: 'lucid'
  found distro name: 'maverick'
  new dist: <UpdateManager.Core.MetaRelease.Dist object at 0x97b454c>
  ...and so on, the proper upgrade procedure started.

  Package version:

  $ apt-cache policy update-manager-core
  update-manager-core:
    Installed: 1:0.134.10
    Candidate: 1:0.142.16
    Version table:
       1:0.142.16 0
          500 http://gb.archive.ubuntu.com/ubuntu/ maverick/main Packages
   *** 1:0.134.10 0
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: update-manager-core 1:0.134.10
  ProcVersionSignature: Ubuntu 2.6.32-25.44-generic 2.6.32.21+drm33.7
  Uname: Linux 2.6.32-25-generic i686
  Architecture: i386
  Date: Sat Oct  2 04:47:25 2010
  InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_GB.utf8
   SHELL=/bin/bash
  SourcePackage: update-manager

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