Public bug reported:

Version 10.10 running satisfactorily.
Started update manager which identified outstanding updates. Told system to 
install updates.
all outstanding updates disappeared from list so assumed all okay. System shown 
as up to date.
System showed upgrade to 11.04 available so went ahead with upgrade. 
After a long time upgrading, system displayed message not all updates can be 
installed.
new message appears. Run a partial upgrade to install as many as possible. 
Pressed proceed.
New message appears. An upgrade from Natty to Maverick is not supported with 
this tool.

But it has done a partial upgrade and left the system showing the old 10.10 
desktop with 11.04 kernal and updated firefox and two different versions of 
terminal installed.
Then gave messages my Hardware was not sufficient to run 11.04.
Action.
Had spare hard drive identical to current hard drive both brand new and tested 
and working properly.
Installed 11.04 onto my spare hard drive from the live CD and it runs 
perfectly. So nothing wrong with my hardware as reported.

Observations.
If update manager was able to identify that an update had not installed it 
should report which one failed to update.
Update manager should not allow you to attempt an upgrade if it knows it has 
not correctly updated all necessary packages for upgrade to complete.
Partial upgrades are  of no use simply leaving most novices like me totally 
lost.
How can the system tell you a)  A partial upgrade is possible . b) Then when 
you proceed with partial upgrade tell you  it cannot carry out a partial 
upgrade. c) Then actually carry out a partial upgrade.
Net result system completely messed up as detailed above.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xorg 1:7.6+4ubuntu3.1
ProcVersionSignature: Ubuntu 2.6.35-28.50-generic 2.6.35.11
Uname: Linux 2.6.35-28-generic i686
Architecture: i386
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Tue Jun 28 14:10:42 2011
DistUpgraded: Log time: 2011-06-23 01:20:33.258042
DistroCodename: natty
DistroVariant: ubuntu
GraphicsCard:
 ATI Technologies Inc RS880 [Radeon HD 4250] [1002:9715] (prog-if 00 [VGA 
controller])
   Subsystem: Giga-byte Technology Device [1458:d000]
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
MachineType: Gigabyte Technology Co., Ltd. GA-880GMA-UD2H
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-28-generic 
root=UUID=89fff4c4-11e4-48bd-b928-d490c271f55d ro quiet splash
Renderer: Unknown
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to natty on 2011-06-23 (5 days ago)
dmi.bios.date: 07/28/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F4
dmi.board.name: GA-880GMA-UD2H
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: 
dmi:bvnAwardSoftwareInternational,Inc.:bvrF4:bd07/28/2010:svnGigabyteTechnologyCo.,Ltd.:pnGA-880GMA-UD2H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-880GMA-UD2H:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-880GMA-UD2H
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.8.6-0ubuntu9.2
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20110107+b795ca6e-0ubuntu7

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 natty needs-reassignment regression-update ubuntu

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https://bugs.launchpad.net/bugs/802991

Title:
  failure to upgrade from 10.10 to 11.04

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