Fuse error on latest build on Ubuntu 20.04. Build 823 works fine

[rsau]

With latest build I get following error

./appimaged-831-x86_64.AppImage 
fuse: failed to exec fusermount: Permission denied

Cannot mount AppImage, please check your FUSE setup.
You might still be able to extract the contents of this AppImage
if you run it with the --appimage-extract option.
See https://github.com/AppImage/AppImageKit/wiki/FUSE
for more information
open dir error: No such file or directory

Previous build works without any other changes.

./appimaged-823-x86_64.AppImage                                                                                                                                                                          
appimaged-823-x86_64.AppImage 177
2024/06/01 11:34:10 Desktop notification:  Not running on one of the supported Live systems This configuration is currently unsupported but may still work, please give feedback.
-
-
-
This process based on /proc/self/exe: /tmp/.mount_appimaBkmLJC/usr/bin/appimaged
Terminating other running processes with that name...
In the future, would send SIGTERM to 31889
In the future, would send SIGTERM to 165259
2024/06/01 11:34:10 Deleted 51 desktop files from /home/USER/.local/share/applications/; use -v to see details
2024/06/01 11:34:10 Probably not launched by systemd (please file an issue if this is wrong)
2024/06/01 11:34:10 Manually launched, not by systemd. Check if enabled in systemd...
2024/06/01 11:34:10 /etc/systemd/user/appimaged.service does not exist
2024/06/01 11:34:10 Creating ~/.config/systemd/user/appimaged.service
2024/06/01 11:34:10 thisai.path: ~/Applications/appimaged-823-x86_64.AppImage
2024/06/01 11:34:11 /bin/systemctl --user status appimaged
2024/06/01 11:34:11 exit status 3
2024/06/01 11:34:11 Enabling systemd service...
2024/06/01 11:34:11 Starting systemd service...
2024/06/01 11:34:11 appimaged should now be running via systemd. To check this, run
2024/06/01 11:34:11 /usr/bin/systemctl -l --no-pager --user status appimaged

I have tried above scenarios 3 times even with system restart and results are same.

The changes at 832...continuous shouldn't have caused this.
So I suspect something got changed during build process.

I am on Ubuntu

NAME="Ubuntu"
VERSION="20.04.6 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.6 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal

[probonopd]

What does ls -lh $(which fusermount) say? And what does ls -lh $(which fusermount3) say?

[rsau]

$ ls -lh $(which fusermount)
lrwxrwxrwx 1 root root 11 Mar  7  2020 /bin/fusermount -> fusermount3

$ ls -lh $(which fusermount3)
-rwsr-xr-x 1 root root 39K Mar  7  2020 /bin/fusermount3

It is working fine with 823.

I'll try with latest later today.

[rsau]

Same error

$ ./appimaged-833-x86_64.AppImage
fuse: failed to exec fusermount: Permission denied

Cannot mount AppImage, please check your FUSE setup.
You might still be able to extract the contents of this AppImage
if you run it with the --appimage-extract option.
See https://github.com/AppImage/AppImageKit/wiki/FUSE
for more information
open dir error: No such file or directory

[probonopd]

Possibly related to AppImage/type2-runtime#18?

Can you please download, make exectuable, and run (from the command line) the appimagetool AppImage from https://github.com/AppImage/appimagetool/releases? Do you get the same error there?

[rsau]

Exact same error

$ ./appimagetool-x86_64.AppImage 
fuse: failed to exec fusermount: Permission denied

Cannot mount AppImage, please check your FUSE setup.
You might still be able to extract the contents of this AppImage 
if you run it with the --appimage-extract option. 
See https://github.com/AppImage/AppImageKit/wiki/FUSE 
for more information
open dir error: No such file or directory

[rsau]

I fixed it by following clues from AppImage/type2-runtime#15 (comment)

I tested first with setting FUSERMOUNT_PROG
It worked

Then comment AppImage/type2-runtime#15 (comment) helped.

Now I have setup symlink ln -s /bin/fusermount /usr/bin and it worked without any issues.

[probonopd]

Possibly the same issue as AppImage/type2-runtime#32 (comment)?