jammy,noble: Installing fuse package removes other important packages

[Thomas Brunner]

Impact
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Test Case
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What Could Go Wrong
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Other Info
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This is being fixed by adding a transitional package fuse built by the fuse3 source package. We are doing it in the fuse3 source package because we need to also remove the Conflicts and change the Breaks to a versioned Breaks so since we need to update fuse3 anyway, there doesn't seem to be much benefit to also uploading the fuse source package.

On the other hand, Launchpad will not allow the fuse source package to be updated if it still builds the out-of-date fuse binary package. Therefore, I think I'll just upload fuse removing the fuse binary package but we could set it as blocked in proposed. That way, it is more convenient in case someone needs to do a Security update or SRU later. I'll use a separate LP bug to set the block-proposed tag just for source package fuse.

This still seems like it would be smoother than requiring 2 source packages to be uploaded to fix the SRU and having to deal with phasing etc.

Original Bug Report
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I installed the `fuse` package in my fresh Ubuntu 22.04 installation and later started getting weird behavior in some applications (such as Chrome). I believe this might be related, as installing `fuse` caused many packages to be removed.

This was reported by others here: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1970148

apt log shows this:
`
Start-Date: 2022-06-04 10:31:38
Commandline: apt install fuse
Requested-By: thomas (1000)
Install: libfuse2:amd64 (2.9.9-5ubuntu3, automatic), fuse:amd64 (2.9.9-5ubuntu3)
Remove: ntfs-3g:amd64 (1:2021.8.22-3ubuntu1), xdg-desktop-portal-gtk:amd64 (1.14.0-1build1), xdg-desktop-portal-gnome:amd64 (42.1-0ubuntu1), gvfs-fuse:amd64 (1.48.1-4), ubuntu-desktop:amd64 (1.481), gnome-shell-
extension-desktop-icons-ng:amd64 (43-2), fuse3:amd64 (3.10.5-1build1), ubuntu-desktop-minimal:amd64 (1.481), xdg-desktop-portal:amd64 (1.14.3-0ubuntu2.22.04.1)
End-Date: 2022-06-04 10:31:57
`

So, installing `fuse` removes packages such as `ubuntu-desktop` and `xdg-desktop-portal`, which (I believe) are important packages and should not be removed.

System information:
Ubuntu 22.04 running on amd64 hardware

[Thomas Brunner (thomasbbrunner)]

Maybe also relevant: I installed the minimal desktop version of Ubuntu 22.04

[Adolfo Jayme Barrientos (fitojb)]

But you should be using the “fuse3” package, not “fuse”, which is an old version…

[Thomas Brunner (thomasbbrunner)]

Honestly, I am not that familiar with fuse to know there are different versions. If a program throws an error stating it requires fuse to work, I am going to install fuse and not fuse3.

If fuse is outdated, why isn't fuse mapped to fuse3?

[Launchpad Janitor (janitor)]

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

[Halim Zaghdoudi (halimbo)]

This also affected me using Lubuntu 22.04.3.
I could not run an appimage (windows2usb) because fuse was "missing".
when i installed fuse the following packages were removed:
fuse3 gvfs-fuse lubuntu-desktop ntfs-3g plasma-discover-backend-snap xdg-desktop-portal xdg-desktop-portal-kde

it then pulled libfuse2, which is on of the conflicts i guess

[Dave Stockinger (dave-stockinger)]

This bug affected me when trying to run an AppImage program. It broke my installation and I had to re-install the following packages:

ntfs-3g:amd64 (1:2022.10.3-1ubuntu1)
xdg-desktop-portal-gtk:amd64 (1.14.1-1)
xdg-desktop-portal-gnome:amd64 (45.0-1)
gnome-remote-desktop:amd64 (45.0-1)
gvfs-fuse:amd64 (1.52.0-1)
gnome-shell-extension-desktop-icons-ng:amd64 (46+really47.0.7-0ubuntu1)
fuse3:amd64 (3.14.0-4)
ubuntu-session:amd64 (45.0-1ubuntu1)
ubuntu-desktop-minimal:amd64 (1.524.1)
nautilus:amd64 (1:45~rc-1ubuntu1)
xdg-desktop-portal:amd64 (1.18.0-1ubuntu1)

In my opinion, *any* apt command that attempts to uninstall a package like ubuntu-session or ubuntu-desktop* should be blocked and require a flag like --yes-i-want-to-break-my-system or similar.

[Kamil Madac (kamil-madac)]

Same to me on 23.10. Also tried to run Appimage application. I got error that fuse is not installed, so I did apt install fuse and after the restart, gdm3 core dumped and every boot was stucked in the console. It took me quite some time to find that I need to install ubuntu-session again.

This fixed the problem with core-dump of gdm3, but then file manager nautilus was also missing.

[Russell Klevann (russtheredder)]

I got this bug after installing fuse libfuse2
To get the file manager back, I used: sudo apt install ubuntu-desktop
To find recently removed packages, use: grep "remove " /var/log/dpkg.log
Good luck.

[Jeremy Bícha (jbicha)]

This is fixed in Ubuntu 24.10 by removing the fuse binary package. Unfortunately, we do not have a very good way of removing packages from stable Ubuntu releases.

https://launchpad.net/ubuntu/+source/fuse/2.9.9-9

[Jeremy Bícha (jbicha)]

Actually we could do this with a transitional package.

[Daniel van Vugt (vanvugt)]

Please remember to update bug 1717878 too.

[Launchpad Janitor (janitor)]

This bug was fixed in the package fuse3 - 3.14.0-7ubuntu1

---------------
fuse3 (3.14.0-7ubuntu1) oracular; urgency=medium

  * Add fuse transitional package to upgrade to fuse3
    (Closes: #918984, #927291, #1074767, #1081537) (LP: #1978310)

 -- Jeremy Bícha <email address hidden> Thu, 12 Sep 2024 10:52:01 -0400