[Bug 614993] Re: 10.04 -> 10.10 upgrade fails: pkgProblemResolver::Resolve generated breaks: xserver-xorg-video-v4l demoted to universe

[ysingh]

I am able to update orupgrade, but get error-

An unresolvable problem occurred while calculating the upgrade.

Please report this bug against the 'update-manager' package and include the following error message:
'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'

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https://bugs.launchpad.net/bugs/614993

Title:
  10.04 -> 10.10 upgrade fails: pkgProblemResolver::Resolve generated
  breaks: xserver-xorg-video-v4l demoted to universe

Status in Update Manager:
  New
Status in “apt” package in Ubuntu:
  Fix Released
Status in “libdrm” package in Ubuntu:
  Invalid
Status in “xorg-server” package in Ubuntu:
  Fix Released

Bug description:
  This machine; Dell inspiron 560 MT  Intel Pentium Dual Core E5400
  Memory;4GB DDR3
  Graphics:512MB Nvidia GeForce G310  Driver update to nvidia-current-256.44
  Dell screen: ST2010 1600x900

  Attachment included: /var/log/dist-upgrade/

  Key (error): Could not calculate the upgrade
  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
  If none of this applies, then please report this bug against the 'update-manager' package and include the files in /var/log/dist-upgrade/ in the bug report.

  Thanks.

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