Obsidian .AppImage not work in Kubuntu 24.04

What I’m trying to do

Execute .AppImage

Things I have tried

Give permissions to the file

It seems like an electron and sandbox problem. The message that the terminal gives is:

[9483:0427/092723.959907:FATAL:setuid_sandbox_host.cc(158)] The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I’m aborting now. You need to make sure that /tmp/.mount_Obsidi8XJZAB/chrome-sandbox is owned by root and has mode 4755.
Trace/breakpoint trap (core dumped)

And with sudo:

[0427/092559.731276:FATAL:electron_main_delegate.cc(294)] Running as root without --no-sandbox is not supported. See https://crbug.com/638180.
Trace/breakpoint trap

I decided to install the .deb package. It runs smoothly.

You need to install the fuse2 package to run appimages. Fuse3 is already installed but its ok to install the older one along side it.

1 Like

Unfortunately, on Kubuntu 24.04 you cannot install libfuse2 as libfuse2t64 is installed in its place. If you try to install libfuse2, even using ‘force’ the apt program will tell you that it is selecting libfuse2t64 and that it is already installed and up to date. So this solution doesn’t work - unless you know of some other way to install fuse2…

sudo apt -f install libfuse2
[sudo] password for redacteduser: 
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Note, selecting 'libfuse2t64' instead of 'libfuse2'
libfuse2t64 is already the newest version (2.9.9-8.1build1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

I did find another workaround - but I cannot find any concrete information discussing the possible security concerns of using this workaround - so use at your own risk.

For me, running obsidian with the --no-sandbox command line argument resolved the issue. (I had problems with the Flatpak version of Obsidian in the past, and I’m not a big fan of Snap, so for now, I’m using this solution)

./Obsidan-1.5.12.appimage --no-sandbox

It also fixed 8 of the other 11 appImage programs I have installed, several of which, have no Snap or Flatpak version.