SOLVED: Bazaar failing on every install.

[kwag]

I can install anything with flatpak via command line, but not via Bazaar.
For example, I just tried to install "Gaia Sky", and I get this:

app/space.gaiasky.GaiaSky/x86_64/stable: Could not unmount revokefs-fuse filesystem at /var/tmp/flatpak-cache-DM7FO3/space.gaiasky.GaiaSky-KZ7DO3: Child process exited with code 1

Same error, no matter what flatpak I try to install. I've been using Bluefin for over a year and this is the first time it happens.

Any help appreciated.
Thanks.

Bazaar version: 0.7.15 (vcs=5c2e989)
Bluefin: Bluefin (Version: 43.20260414.1)

[kwag]

And I just found this: "There is also this other apparmor bug that does not allow bazaar flatpak to install flathub apps and now this one that does not allow me to use pika or deja-dup flatpaks to backup my user files. These have been creeping since like August/September and it's very sad for the state of Ubuntu that such critical issues are not a priority. Too bad, I really like Ubuntu but I guess I can always customize gnome in another distro to make it look like gnome."

I just tried to mount a pika backup to see the files and I can't!
So it's a fuse problem.
I've rebased from stable to daily to previous Bluefin images and same problem. I can't figure this out.

Link: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/2120439

[kwag]

Fixed. The problem is that brew files override the fusemount3 system files with sym links.

mv /home/linuxbrew/.linuxbrew/bin/fusermount3 /home/linuxbrew/.linuxbrew/bin/fusermount3.bak

Then "which fusermount3" should return "/usr/bin/fusermount3" and not any references to "/home/linuxbrew/.linuxbrew/"

Now Bazaar and pika backup work again.

[renner0e]

I'm confused why this happened to you.

We explicitly set hombrew last in $PATH
ublue-os/brew#1

DId you modify /etc/profile.d/brew.sh at any point?

sudo ostree admin config-diff

[kwag]

I'm confused why this happened to you.

We explicitly set hombrew last in $PATH ublue-os/brew#1

DId you modify /etc/profile.d/brew.sh at any point?

sudo ostree admin config-diff

No idea why this happened. I never touched /etc/profile.d/brew.sh any time!

But as I posted earlier, others are having issues too: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/2120439

I guess brew's fusermount3 somehow overrrided internal fusermount3 and that was the problem.
When I removed the sym link, problem resolved.

[renner0e]

what does echo $PATH say?