[Bug 1609796] Re: cant upgrade EOL 15.04

[Achim Behrens]

Ok, now i just tested a "sudo do-release-upgrade -d" which seems to
work.

But this is a total desaster and must be solved differently. There are
too many bad howtos out there alread telling every user just to run the
-d upgrade which results in users ending up on devel releases when the
dont want to because most people dont know what the -d is for.

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https://bugs.launchpad.net/bugs/1609796

Title:
  cant upgrade EOL 15.04

Status in update-manager-core package in Ubuntu:
  New

Bug description:
  A user in #ubuntu complained about no beeing able to upgrade his EOL
  15.04 (cloud) server install, so i made a 15.04 server install in vbox
  to test this scenario, and he is right:

  Running "sudo do-release-upgrade" results in: 
  "An upgrade from 'vivid' to 'xenial' is not supported with this tool."

  An EOL Upgrade with changing the sources.list to use the old-releases
  doesnt work since vivid is not moved to the old-releases yet: http
  ://old-releases.ubuntu.com/ubuntu/dists/ .

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