[Bug 1354825] Re: Upgrade from 12.04 to 14.04 fails

[Sam Stoelinga]

sudo cat /etc/update-manager/release-upgrades
[sudo] password for ld: 
# Default behavior for the release upgrader.

[DEFAULT]
# Default prompting behavior, valid options:
#
#  never  - Never check for a new release.
#  normal - Check to see if a new release is available.  If more than one new
#           release is found, the release upgrader will attempt to upgrade to
#           the release that immediately succeeds the currently-running
#           release.
#  lts    - Check to see if a new LTS release is available.  The upgrader
#           will attempt to upgrade to the first LTS release available after
#           the currently-running one.  Note that this option should not be
#           used if the currently-running release is not itself an LTS
#           release, since in that case the upgrader won't be able to
#           determine if a newer release is available.
prompt=normal

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https://bugs.launchpad.net/bugs/1354825

Title:
  Upgrade from 12.04 to 14.04 fails

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

Bug description:
  The update-manager tries to update from 12.04 to 12.10 but this seems
  to fail, because it's no longer supported, instead it should update to
  14.04.

  Steps to reproduce:
  1. Buy a dell laptop with ubuntu 12.04 pre-installed
  2. Run sudo do-release-upgrade or update manager gui

  Current result:
   sudo do-release-upgrade
  Checking for a new Ubuntu release
  Err Upgrade tool signature
    404  Not Found [IP: 91.189.92.201 80]
  Err Upgrade tool
    404  Not Found [IP: 91.189.92.201 80]
  Fetched 0 B in 0s (0 B/s)
  WARNING:root:file 'quantal.tar.gz.gpg' missing
  Failed to fetch
  Fetching the upgrade failed. There may be a network problem.

  Expected result:
  Ability to upgrade to either 12.10 -> 13.04 -> 14.04
  or upgrade directly from 12.04 -> 14.04 a direct upgrade path seems better.

  Additonal information of affected system:
  lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 12.04.5 LTS
  Release:	12.04
  Codename:	precise

  Also I am not the only one having this bug, see the following
  stackoverflow question: http://askubuntu.com/questions/504846
  /upgrading-from-12-04-3-lts-to-14-04-1-lts-failure this question
  wasn't posted by me, so this isn't only me.

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