odeds@7224:~$ apt-cache policy cupscups:  Installed: 1.4.4-6ubuntu2.3  Candidate: 1.4.4-6ubuntu2.3  Version table: *** 1.4.4-6ubuntu2.3 0        100 /var/lib/dpkg/statusN: Ignoring file '10periodic.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '01ubuntu.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '20archive.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '50unattended-upgrades.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '20packagekit.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '99update-notifier.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '15update-stamp.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '05aptitude.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '20dbus.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '99synaptic.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '01autoremove.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '70debconf.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file '00trustcdrom.gz' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extensionN: Ignoring file 'google-chrome.list.distUpgrade.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'google-chrome.list.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'ubuntu-xswat-x-update-maverick.list.save.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'maverick-partner.list.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'xorg-edgers-ppa-lucid.list.distUpgrade.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'xorg-edgers-ppa-lucid.list.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'maverick-partner.list.distUpgrade.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'ubuntu-xswat-x-update-maverick.list.distUpgrade.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'ubuntu-xswat-x-update-maverick.list.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'ubuntu-x-swat-x-updates-maverick.list.distUpgrade.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'google-chrome.list.save.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'maverick-partner.list.save.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'ubuntu-x-swat-x-updates-maverick.list.save.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'ubuntu-x-swat-x-updates-maverick.list.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extensionN: Ignoring file 'xorg-edgers-ppa-lucid.list.save.gz' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension

> Date: Tue, 19 Jul 2011 15:04:00 +0000
> From: <email address hidden>
> To: <email address hidden>
> Subject: [Bug 797673] Re: upgrade from Ubuntu 10.10 to 11.0.4 64bit is halted 
> 
> Output of:
> 
> apt-cache policy cups
> ---
> Ubuntu Bug Squad volunteer triager
> http://wiki.ubuntu.com/BugSquad
> 
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/797673
> 
> Title:
>   upgrade from Ubuntu 10.10 to 11.0.4 64bit is halted
> 
> Status in “update-manager” package in Ubuntu:
>   Invalid
> 
> Bug description:
>   Binary package hint: update-manager
> 
>   When upgrading i'm getting the following error:
> 
>   An unresolvable problem occurred while calculating the upgrade:
>   E:Error, pkgProblemResolver::Resolve generated breaks, this may be
>   caused by held packages.
> 
>   This can be caused by:
>   * Upgrading to a pre-release version of Ubuntu
>   * Running the current pre-release version of Ubuntu
>   * Unofficial software packages not provided by Ubuntu
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/797673/+subscriptions