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[Łukasz Zemczak <1981485@xxxxxxxxxxxxxxxxxx>]

The verification of the Stable Release Update for ubuntu-release-
upgrader has completed successfully and the package is now being
released to -updates.  Subsequently, the Ubuntu Stable Release Updates
Team is being unsubscribed and will not receive messages about this bug
report.  In the event that you encounter a regression using the package
from -updates please report a new bug using ubuntu-bug and tag the bug
report regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1981485

Title:
  deb2snap.json contains gnome-3-34-1804 in the seeded section

Status in ubuntu-release-upgrader package in Ubuntu:
  Fix Released
Status in ubuntu-release-upgrader source package in Jammy:
  Fix Released
Status in ubuntu-release-upgrader source package in Kinetic:
  Fix Released

Bug description:
  [Description]
  The snap gnome-3-34-1804 is no longer seeded in Ubuntu 22.04 but the distribution upgrade process is not aware of this and will leave the snap installed after the upgrade.

  [Test Plan]
  Test 1
  ------
  Using the dist-upgrader tarball from http://archive.ubuntu.com/ubuntu/dists/jammy-proposed/main/dist-upgrader-all/current/ on an Ubuntu 20.04 LTS system upgrade to Ubuntu 22.04 LTS. (Using the tarball is necessary because one cannot use 'do-release-upgrade -d and -p' simultaneously.) The tarball should be manually extracted into /tmp/ and the file (or symlink) named 'jammy' should be executed.

  After the upgrade completes the snap gnome-3-34-1804 should no long be
  installed. (Check out output of snap list and also check
  /var/log/dist-upgrade/main.log for the message "removing snap
  gnome-3-34-1804".)

  Test 2
  ------
  Complete the same test as above but before upgrading install the slack snap. After the upgrade completes gnome-3-34-1804 should still be installed and the slack snap should still launch.

  [Regression Potential]
  Other snaps may depend on the gnome-3-34-1804 snap (slack for instance) and removing gnome-3-34-1804 would then make those snaps unusable. Subsequently, the test plan involves installing the slack snap and then upgrading and ensuring it still launches.

  Original Description
  --------------------
  During an upgrade from Ubuntu 20.04 to Ubuntu 22.04 I noticed the following in the log:

  2022-07-12 12:11:02,144 DEBUG install of snap firefox succeeded
  2022-07-12 12:11:02,735 DEBUG refresh of snap gnome-3-34-1804 failed
  2022-07-12 12:11:03,372 DEBUG refresh of snap gtk-common-themes succeeded

  The refresh of the snap gnome-3-34-1804 failed because there is no
  ubuntu-22.04 channel for it. I don't think the snap is needed any
  longer and it should switch from the "seeded" section to the
  "unseeded" section in deb2snap.json.

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