[Bug 1692092] [NEW] not possible to upgrade from Xenial to Zesty

[Brian Murray]

Public bug reported:

With the changes to update-manager in bug 1497024 it should be possible
to upgrade from Ubuntu 16.04 to 17.04 (provided 16.10 is End of Life).
While update-manager will download the zesty.tar.gz file it will not run
and will instead say "An upgrade from 'X' to 'Z' is not supported with
this tool." This is because ubuntu-release-upgrader has not been
configured to upgrade from 16.04 to 17.04.

[Test Case]
1) Run do-release-upgrade (notice it download yakkety.tar.gz)
2) Set yakkety to unsupported in ~/.cache/update-manager-core/meta-release
3) Run do-release-upgrade again (notice it download zesty.tar.gz)

With the dist-upgrader tarball currently available you'll receive an
error message about the upgrade path being unsupported. With the version
of the dist-upgrader tarball in proposed (accessible by running do-
release-upgrade -p and modifying meta-release-proposed in the cache
folder) you will not receive that error message.

[Regression Potential]
It's possible the upgrade won't work for people, but I'll be watching out for issues and its better than we resolve upgrade issues now rather then when people are upgrading from LTS to LTS.

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: High
     Assignee: Brian Murray (brian-murray)
         Status: In Progress

** Affects: ubuntu-release-upgrader (Ubuntu Zesty)
     Importance: High
     Assignee: Brian Murray (brian-murray)
         Status: In Progress


** Tags: artful dist-upgrade zesty

** Tags added: artful dist-upgrade zesty

** Also affects: ubuntu-release-upgrader (Ubuntu Zesty)
   Importance: Undecided
       Status: New

** Changed in: ubuntu-release-upgrader (Ubuntu)
   Importance: Undecided => High

** Changed in: ubuntu-release-upgrader (Ubuntu)
     Assignee: (unassigned) => Brian Murray (brian-murray)

** Changed in: ubuntu-release-upgrader (Ubuntu Zesty)
   Importance: Undecided => High

** Changed in: ubuntu-release-upgrader (Ubuntu Zesty)
     Assignee: (unassigned) => Brian Murray (brian-murray)

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => In Progress

** Changed in: ubuntu-release-upgrader (Ubuntu Zesty)
       Status: New => In Progress

** Description changed:

  With the changes to update-manager in bug 1497024 it should be possible
  to upgrade from Ubuntu 16.04 to 17.04 (provided 16.10 is End of Life).
  While update-manager will download the zesty.tar.gz file it will not run
  and will instead say "An upgrade from 'X' to 'Z' is not supported with
  this tool." This is because ubuntu-release-upgrader has not been
  configured to upgrade from 16.04 to 17.04.
  
  [Test Case]
  1) Run do-release-upgrade (notice it download yakkety.tar.gz)
- 2) Set yakkety to unsupported in ~/.cache/update-manager-core/meta-release 
+ 2) Set yakkety to unsupported in ~/.cache/update-manager-core/meta-release
  3) Run do-release-upgrade again (notice it download zesty.tar.gz)
  
  With the dist-upgrader tarball currently available you'll receive an
  error message about the upgrade path being unsupported. With the version
  of the dist-upgrader tarball in proposed (accessible by running do-
- release-upgrade -p) you will not receive that error message.
+ release-upgrade -p and modifying meta-release-proposed in the cache
+ folder) you will not receive that error message.
  
  [Regression Potential]
  It's possible the upgrade won't work for people, but I'll be watching out for issues and its better than we resolve upgrade issues now rather then when people are upgrading from LTS to LTS.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/1692092

Title:
  not possible to upgrade from Xenial to Zesty

Status in ubuntu-release-upgrader package in Ubuntu:
  In Progress
Status in ubuntu-release-upgrader source package in Zesty:
  In Progress

Bug description:
  With the changes to update-manager in bug 1497024 it should be
  possible to upgrade from Ubuntu 16.04 to 17.04 (provided 16.10 is End
  of Life). While update-manager will download the zesty.tar.gz file it
  will not run and will instead say "An upgrade from 'X' to 'Z' is not
  supported with this tool." This is because ubuntu-release-upgrader has
  not been configured to upgrade from 16.04 to 17.04.

  [Test Case]
  1) Run do-release-upgrade (notice it download yakkety.tar.gz)
  2) Set yakkety to unsupported in ~/.cache/update-manager-core/meta-release
  3) Run do-release-upgrade again (notice it download zesty.tar.gz)

  With the dist-upgrader tarball currently available you'll receive an
  error message about the upgrade path being unsupported. With the
  version of the dist-upgrader tarball in proposed (accessible by
  running do-release-upgrade -p and modifying meta-release-proposed in
  the cache folder) you will not receive that error message.

  [Regression Potential]
  It's possible the upgrade won't work for people, but I'll be watching out for issues and its better than we resolve upgrade issues now rather then when people are upgrading from LTS to LTS.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1692092/+subscriptions