[Bug 989095] Re: Cannot upgrade from 11.10 to 12.04 due to adobe package authentication issues

[Benji]

The problem seems to be the GPG Key. There is an error with the "Ubuntu
Archive Signing Key"

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Title:
  Cannot upgrade from 11.10 to 12.04 due to adobe package authentication
  issues

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

Bug description:
  When I go through the update, I get an error that said it had an error authenticating some packages:
  acroread-common, adobe-flash-properties-gtk and adobe-flashplugin

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