[Bug 804136] Re: failed to fetch relsease.gpg during upgrade to 11.04 from 10.10

[RedSingularity]

** Tags removed: 10.10 11.04 lts-upgrade natty
** Tags added: maverick2natty

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https://bugs.launchpad.net/bugs/804136

Title:
  failed to fetch relsease.gpg during upgrade to 11.04 from 10.10

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

Bug description:
  Update (from 10.10 to 11.04) produces the following error message;
  -------
  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)
  , W:Failed to fetch http://extras.ubuntu.com/ubuntu/dists/natty/Release.gpg  Something wicked happened resolving 'extras.ubuntu.com:http' (-5 - No address associated with hostname)
  , E:Some index files failed to download, they have been ignored, or old ones used instead.

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