AppImage executable won't launch

[Mukund-Bhardwaj]

Bug Description:

AppImage executable won't launch without disabling sandboxing.
Application works completely find after adding --no-sandbox command line argument
The following error is shown in the terminal:

[184044:0610/211014.832520: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_TheiaI98fe20/chrome-sandbox is owned by root and has mode 4755.
Trace/breakpoint trap (core dumped)

Steps to Reproduce:

1. Give executable permission to the AppImage file
2. Run the executable via terminal

Additional Information

• Operating System: Kubuntu 24.04
• Theia Version: 1.49

[jfaltermeier]

Thank you for the report. Sounds like this: https://docs.appimage.org/user-guide/troubleshooting/electron-sandboxing.html
We may try https://www.npmjs.com/package/electron-builder-sandbox-fix

[otherpaco]

@jfaltermeier, that seems not to be the problem.

I use Ubuntu 24.04. and have the same problem.

sysctl kernel.unprivileged_userns_clone returns
kernel.unprivileged_userns_clone = 1

So no need for the sandbox-fix package.

But I found this:

The issue comes from Ubuntu 24.04 deprecating unprivileged kernel namespaces, which the Arduino IDE (and other applications) rely on for their sandboxes.

From a sandbox problem with the Arduino IDE discussed on askubuntu, here the corresponding github issue

The workaround ./TheiaIDE.AppImage --no-sandbox works but you loose the security of a sandbox.