[Bug 1880760] [NEW] do-release-upgrade should provide a way to upgrade to $distro-proposed

[Simon Déziel]

Public bug reported:

It seems there is no way to do a release upgrade to $distro-proposed.
do-release-upgrade has the --proposed flag but that only tells it to use
the upgrader from $distro-proposed.

When validating bug fixes for distro upgrade problem (like LP:
#1865218), it would be handy to have do-release-upgrade enable $distro-
proposed in the sources.list.

Maybe 'do-release-upgrade --to-proposed' could be used for this?

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.37
ProcVersionSignature: Ubuntu 5.3.0-53.47~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-53-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
CrashDB: ubuntu
Date: Tue May 26 21:07:14 2020
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=C.UTF-8
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2020-05-26 (0 days ago)

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


** Tags: amd64 apport-bug bionic dist-upgrade uec-images

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https://bugs.launchpad.net/bugs/1880760

Title:
  do-release-upgrade should provide a way to upgrade to $distro-proposed

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

Bug description:
  It seems there is no way to do a release upgrade to $distro-proposed.
  do-release-upgrade has the --proposed flag but that only tells it to
  use the upgrader from $distro-proposed.

  When validating bug fixes for distro upgrade problem (like LP:
  #1865218), it would be handy to have do-release-upgrade enable
  $distro-proposed in the sources.list.

  Maybe 'do-release-upgrade --to-proposed' could be used for this?

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.37
  ProcVersionSignature: Ubuntu 5.3.0-53.47~18.04.1-generic 5.3.18
  Uname: Linux 5.3.0-53-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.14
  Architecture: amd64
  CrashDB: ubuntu
  Date: Tue May 26 21:07:14 2020
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=C.UTF-8
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-05-26 (0 days ago)

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