[Bug 1513232] Re: do-release-upgrade no longer works from lucid to precise

[Matthew T. Russotto]

It appears the public key for the precies-security and precise-updates
package isn't available during the update.  Adding it manually with

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv
40976EAF437D05B5

worked for all but one package, java-package, which I simply removed.

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https://bugs.launchpad.net/bugs/1513232

Title:
  do-release-upgrade no longer works from lucid to precise

Status in update-manager package in Ubuntu:
  Confirmed
Status in update-manager source package in Precise:
  Confirmed

Bug description:
  When trying to run do-release-upgrade to go from Lucid to Precise, the
  upgrade fails with :

  Error authenticating some packages

  It was not possible to authenticate some packages. This may be a
  transient network problem. You may want to try again later. See below
  for a list of unauthenticated packages. 

  accountsservice ...

  Workaround is to add the following statement in /etc/update-manager/release-upgrades.d/unauth.cfg :
  [Distro]
  AllowUnauthenticated=yes

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