Steam - bwrap executable not setuid root

Hello everyone,

Attempting to run a game on Steam, I get the following error –

–share-pids not supported by host portal

This feature requires Flatpak to be using a bubblewrap (bwrap) executable that is not setuid root.

The non-setuid version of bubblewrap requires a kernel that allows unprivileged users to create new user namespaces.

For more details please see:

I followed the link and the instructions, and attempted to switch to unprivileged mode, to no avail.

Any ideas?

You need to provide more information.

Which distribution are you using? Which version of flatpak? What exactly did you change & what output did you get?

Hello, thanks for the reply.
Distro is Nutyx 23.11, Flatpak version1.15.4-1.
No modifications to the Flatpak app, not even Flatseal.
Launching Steam works fine, and it runs just fine. The error occurs whenever I attempt to launch a program, in this case, RPG Maker MZ
I am including a screenshot of my terminal output when the error occurs

Maybe that’s the problem. First time I hear about that distro. Chances they broke something that works elsewhere not negligible.

You should post the output of the following:

  1. cat /etc/sysctl.d/50-bubblewrap.conf
  2. sudo sysctl kernel.unprivileged_userns_clone
  3. ls -l /usr/bin/bwrap
    (or where your bwrap executable is located, you can use which bwrap to show the path)