Upgrade to 11.10 beta broken at installing ubuntu-dekstop

[Ivan Sagalaev]

Running `update-manager -d` from terminal asks to run a partial upgrade and fails at it with the message in a dialog box:

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Can't install 'ubuntu-desktop'

It was impossible to install a required package. Please report this as a bug using 'ubuntu-bug update-manager' in a terminal.
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Then dumps this into a terminal:

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Investigating (0) unity-2d [ amd64 ] < none -> 4.2.0-0ubuntu1 > ( x11 )
Broken unity-2d:amd64 Depends on unity-2d-panel [ amd64 ] < none -> 4.2.0-0ubuntu1 > ( x11 )
  Considering unity-2d-panel:amd64 1 as a solution to unity-2d:amd64 4
  Holding Back unity-2d:amd64 rather than change unity-2d-panel:amd64
Investigating (0) unity-2d-spread [ amd64 ] < none -> 4.2.0-0ubuntu1 > ( x11 )
Broken unity-2d-spread:amd64 Depends on libunity-2d-private0 [ amd64 ] < none -> 4.2.0-0ubuntu1 > ( libs ) (= 4.2.0-0ubuntu1)
  Considering libunity-2d-private0:amd64 3 as a solution to unity-2d-spread:amd64 1
  Holding Back unity-2d-spread:amd64 rather than change libunity-2d-private0:amd64
Investigating (0) unity-2d-places [ amd64 ] < none -> 4.2.0-0ubuntu1 > ( x11 )
Broken unity-2d-places:amd64 Depends on libunity-2d-private0 [ amd64 ] < none -> 4.2.0-0ubuntu1 > ( libs ) (= 4.2.0-0ubuntu1)
  Considering libunity-2d-private0:amd64 3 as a solution to unity-2d-places:amd64 1
  Holding Back unity-2d-places:amd64 rather than change libunity-2d-private0:amd64
Investigating (0) unity-2d-launcher [ amd64 ] < none -> 4.2.0-0ubuntu1 > ( x11 )
Broken unity-2d-launcher:amd64 Depends on libunity-2d-private0 [ amd64 ] < none -> 4.2.0-0ubuntu1 > ( libs ) (= 4.2.0-0ubuntu1)
  Considering libunity-2d-private0:amd64 3 as a solution to unity-2d-launcher:amd64 1
  Holding Back unity-2d-launcher:amd64 rather than change libunity-2d-private0:amd64
Investigating (0) ubuntu-desktop [ amd64 ] < 1.242 > ( metapackages )
Broken ubuntu-desktop:amd64 Depends on unity-2d [ amd64 ] < none -> 4.2.0-0ubuntu1 > ( x11 )
  Considering unity-2d:amd64 4 as a solution to ubuntu-desktop:amd64 0
  Removing ubuntu-desktop:amd64 rather than change unity-2d:amd64
Done
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On a related note, `apt-get install -f` proposes to remove "ubuntu-desktop" which I'm afraid to do. I don't know what's happening here, this "-f" flag always seemed too magical to me :-)

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: update-manager 1:0.152.17
ProcVersionSignature: Ubuntu 3.0.0-9.15-generic 3.0.3
Uname: Linux 3.0.0-9-generic x86_64
Architecture: amd64
Date: Thu Sep 1 16:32:56 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 LC_MESSAGES=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to oneiric on 2011-09-01 (0 days ago)

[Ivan Sagalaev (isagalaev)]

BTW I'll be grateful for any advice on how to unbrake apt-get from the point of it wanting to remove ubuntu-desktop.

[Jean-Baptiste Lallement (jibel)]

Thanks for your report.

The problem is with libindicator3
Broken libindicator6:amd64 Breaks on libindicator3 [ amd64 ] < 0.3.22-0ubuntu1 -> 0.3.22-0ubuntu2 > ( universe/libs ) (<= 0.3.93-0ubuntu1)
  Considering libindicator3:amd64 10 as a solution to libindicator6:amd64 5
  Holding Back libindicator6:amd64 rather than change libindicator3:amd64