Steam - bwrap executable not setuid root

Dec 2, 2023
B
#1

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?

C
#2

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?

B
#3

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

IMG_20231202_101310737
IMG_20231202_1013107371920×1440 275 KB

1 reply
H
#4
Replying to #3

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

C
#5

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)