[Bug 1569233] [NEW] changelogs.ubuntu.com/EOLReleaseAnnouncement missing, causes distro upgrade failure on EOL systems

[林博仁]

Public bug reported:

Update Manager will read http://changelogs.ubuntu.com/meta-release and
sequentially try to access
http://changelogs.ubuntu.com/EOLReleaseAnnouncement for new system's
release notes, however the file on
http://changelogs.ubuntu.com/EOLReleaseAnnouncement is missing and
Update Manager will complain "Could not find the release notes - The
server may be overloaded" error message and stop the entire upgrade
process.

While this bug does appears on EOL release, it's still valid as EOL
Upgrade still needs to be working to upgrade to a supported release.

## Bug Reproduce Steps ##
1. Grab & install an EOL'd Ubuntu release(e.g. Ubuntu 14.10)
2. Switch software source to old-releases.ubuntu.com
3. Update software source cache and fully upgrade the system
4. Run Update Manger and hit the release upgrade button

## Workarounds ##
Use `do-release-upgrade` command instead, which don't check the release note

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  Update Manager will read http://changelogs.ubuntu.com/meta-release and
  sequentially try to access
  http://changelogs.ubuntu.com/EOLReleaseAnnouncement for new system's
  release notes, however the file on
  http://changelogs.ubuntu.com/EOLReleaseAnnouncement is missing and
  Update Manager will complain "Could not find the release notes - The
  server may be overloaded" error message.
  
+ While this bug does appears on EOL release, it's still valid as EOL
+ Upgrade still needs to be working to upgrade to a supported release.
+ 
  ## Workarounds ##
  Use `do-release-upgrade` command instead, which don't check the release note

-- 
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https://bugs.launchpad.net/bugs/1569233

Title:
  changelogs.ubuntu.com/EOLReleaseAnnouncement missing, causes distro
  upgrade failure on EOL systems

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  Update Manager will read http://changelogs.ubuntu.com/meta-release and
  sequentially try to access
  http://changelogs.ubuntu.com/EOLReleaseAnnouncement for new system's
  release notes, however the file on
  http://changelogs.ubuntu.com/EOLReleaseAnnouncement is missing and
  Update Manager will complain "Could not find the release notes - The
  server may be overloaded" error message and stop the entire upgrade
  process.

  While this bug does appears on EOL release, it's still valid as EOL
  Upgrade still needs to be working to upgrade to a supported release.

  ## Bug Reproduce Steps ##
  1. Grab & install an EOL'd Ubuntu release(e.g. Ubuntu 14.10)
  2. Switch software source to old-releases.ubuntu.com
  3. Update software source cache and fully upgrade the system
  4. Run Update Manger and hit the release upgrade button

  ## Workarounds ##
  Use `do-release-upgrade` command instead, which don't check the release note

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