[Bug 968630] Re: fails to show upgrade to Precise (from Oneiric)

[joao luiz]

yes,  it show dist's like this:

Dist: precise
Name: Precise Pangolin
Version: 12.04 LTS
Date: Thu, 25 Apr 2012 12:00:00 UTC
Supported: 0
Description: This is the 12.04 LTS release
Release-File: http://archive.ubuntu.com/ubuntu/dists/precise/Release
ReleaseNotes: http://archive.ubuntu.com/ubuntu/dists/precise/main/dist-upgrader-all/current/DevelReleaseAnnouncement
ReleaseNotesHtml: http://archive.ubuntu.com/ubuntu/dists/precise/main/dist-upgrader-all/current/DevelReleaseAnnouncement.html
UpgradeTool: http://archive.ubuntu.com/ubuntu/dists/precise/main/dist-upgrader-all/current/precise.tar.gz
UpgradeToolSignature: http://archive.ubuntu.com/ubuntu/dists/precise/main/dist-upgrader-all/current/precise.tar.gz.gpg

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https://bugs.launchpad.net/bugs/968630

Title:
  fails to show upgrade to Precise (from Oneiric)

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

Bug description:
  I'm trying to upgrade to Precise Beta 2 but upon invoking "update-manager -d" it fails to show the possibility to upgrade. 
  see attached screenshot.
  terminal output:
  mio at mio-VGN-FZ31S:~$ lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 11.10
  Release:	11.10
  Codename:	oneiric
  mio at mio-VGN-FZ31S:~$ uname -a
  Linux mio-VGN-FZ31S 3.0.0-17-generic #30-Ubuntu SMP Thu Mar 8 20:45:39 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
  mio at mio-VGN-FZ31S:~$ update-manager -d

  (update-manager:3033): Gdk-CRITICAL **: gdk_window_get_pointer:
  assertion `GDK_IS_WINDOW (window)' failed

  (update-manager:3033): Gdk-CRITICAL **: gdk_window_get_pointer:
  assertion `GDK_IS_WINDOW (window)' failed

  (update-manager:3033): Gdk-CRITICAL **: gdk_window_get_pointer:
  assertion `GDK_IS_WINDOW (window)' failed

  (update-manager:3033): Gdk-CRITICAL **: gdk_window_get_pointer:
  assertion `GDK_IS_WINDOW (window)' failed

  (update-manager:3033): Gdk-CRITICAL **: gdk_window_get_pointer:
  assertion `GDK_IS_WINDOW (window)' failed

  (update-manager:3033): Gdk-CRITICAL **: gdk_window_get_pointer:
  assertion `GDK_IS_WINDOW (window)' failed

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