[Bug 1890936] Re: trying upgrade 18.04.5 to 20.04.1 - "There is no development version of an LTS available."

[Brian Murray]

There are a couple of issues we are trying to address before we enable
upgrades to 20.04.1. The following discourse post is tracking the status
of 20.04.1.

https://discourse.ubuntu.com/t/focal-fossa-20-04-1-lts-point-release-
status-tracking/17604

** Changed in: ubuntu-release-upgrader (Ubuntu)
    Milestone: None => ubuntu-20.04.1

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https://bugs.launchpad.net/bugs/1890936

Title:
  trying upgrade 18.04.5 to 20.04.1 - "There is no development version
  of an LTS available."

Status in ubuntu-release-upgrader package in Ubuntu:
  Confirmed
Status in update-manager package in Ubuntu:
  Confirmed

Bug description:
  Steps to reproduce:
  1. Have fully upgraded Ubuntu MATE 18.04.5 LTS installed
  2. Open terminal and execute

  ```
  sudo do-release-upgrade
  ```

  Expected results:
  * upgrade process started

  Actual results:
  * upgrade process does not start:

  ```
  $ sudo do-release-upgrade 
  Checking for a new Ubuntu release
  There is no development version of an LTS available.
  To upgrade to the latest non-LTS develoment release 
  set Prompt=normal in /etc/update-manager/release-upgrades.
  ```

  Note: this is not expected as per
  https://wiki.ubuntu.com/FocalFossa/ReleaseNotes

  > The -d switch is necessary to upgrade from Ubuntu 18.04 LTS as
  upgrades have not yet been enabled and will only be enabled after the
  first point release of 20.04 LTS

  The problem is caused by the fact that http://changelogs.ubuntu.com
  /meta-release-lts is out of date. It does not mention 20.04 LTS (Focal
  Fossa).

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38
  ProcVersionSignature: Ubuntu 4.15.0-112.113-generic 4.15.18
  Uname: Linux 4.15.0-112-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.16
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: MATE
  Date: Sun Aug  9 12:23:18 2020
  InstallationDate: Installed on 2018-04-26 (835 days ago)
  InstallationMedia: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: No upgrade log present (probably fresh install)

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