update-manager should not remove deb-packaged Firefox on flavors

Status changed to 'Confirmed' because the bug affects multiple users.

Hello Norbert, or anyone else affected,

Accepted update-manager into impish-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/update-manager/1:21.10.5 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-impish to verification-done-impish. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-impish. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Tested on a Lubuntu impish (final) QA-test install.

`update-manager` installed (1:21.10.5 from proposed)
(along with all other files available via -proposed)

No snaps were installed

ran `sudo update-manager`

it reported I needed to reboot (fair enough) then exited

No snaps were installed.
Firefox is still installed as deb package :)

--
Lubuntu isn't impacted by this; but I'd added `update-manager` days ago [mentioned in the askubu link Norbert gave] and by running `update-manager`; the `firefox` *deb* was removed & a snap version installed.

This was on that same box which has a couple of ~identical installs; ie. QA-test of full disk install; followed by install alongside etc.. so this was a clean install before this test.

Results exactly as wanted; and different to same test ~2 days ago.

I originally changed tag to verification-done, but have reversed this as it's likely best done (as listed on instructions) on an actual Ubuntu-MATE install.

Installed Ubuntu-MATE impish (2021-10-12) on
- hp dc7700 (c2d-e6320, 5gb, nvidia quadro nvs 290)

(i added `vim`; sorry wasn't in any mood to use pluma, nano etc)

added -proposed then upgraded `update-manager` to 1:21.10.5

no snap for firefox installed; it's deb package

ran `update-manager` from terminal & let it perform any updates it wanted.

At conclusion; firefox is still a deb package; no snap of firefox is installed. Same result as with Lubuntu earlier.

Package from proposed fixes the issue. Thanks.

Status changed to 'Confirmed' because the bug affects multiple users.

This bug was fixed in the package update-manager - 1:21.10.5

---------------
update-manager (1:21.10.5) impish; urgency=medium

  * UpdateManager/backend/__init__.py: When checking for snap seeds also
    take into consideration whether or not the metapackage associated with the
    snap is installed. (LP: #1947501)

 -- Brian Murray <email address hidden> Mon, 18 Oct 2021 12:26:38 -0700

The verification of the Stable Release Update for update-manager 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.

This bug was fixed in the package update-manager - 1:22.04.2

---------------
update-manager (1:22.04.2) jammy; urgency=medium

  * UpdateManager/backend/__init__.py: define the cache before trying to use
    it.

 -- Brian Murray <email address hidden> Tue, 19 Oct 2021 07:25:02 -0700

Ubuntu 21.10 (Impish Indri) has reached end of life, so this bug will not be fixed for that specific release.