[Bug 872656] Re: Trying to upgrade to version 11.04 from 10.10

[Brian Murray]

** Tags added: dist-upgrade

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Title:
  Trying to upgrade to version 11.04 from 10.10

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

Bug description:
  Keep receiving this error when trying to upgrade, I have the 11.04
  installer on a flash drive that I can try to upgrade with but not sure
  how to get it to see it as a source. Below is the error received:

  W:Failed to fetch http://archive.canonical.com/ubuntu/dists/natty/Release.gpg  Something wicked happened resolving 'archive.canonical.com:http' (-5 - No address associated with hostname)
  , E:Some index files failed to download, they have been ignored, or old ones used instead.

  When I try and run the installer (boot to it) there is no option to
  upgrade just install, and I would prefer not to lose my linux
  partition as it is the one I use 95% of the time. Any assistance would
  be greatly appreciated.

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