Unable to run steam-snap built locally

[lorsanta]

I tried to build steam-snap, but whenever I run it I get this error:

Steam now requires user namespaces to be enabled.

This requirement is the same as for Flatpak, which has more detailed
information available:
https://github.com/flatpak/flatpak/wiki/User-namespace-requirements

The log show me this:

steam-runtime-check-requirements[53449]: W: Child process exited with code 1: bwrap: Can't read /proc/sys/kernel/overflowuid: Permission denied

steam.sh[51378]: Error: Steam now requires user namespaces to be enabled.

This requirement is the same as for Flatpak, which has more detailed
information available:
https://github.com/flatpak/flatpak/wiki/User-namespace-requirements

Teseted with:

os_release:
    name:               "Ubuntu"
    version:            "24.04.1 LTS (Noble Numbat)"
snap_info:
    steam_revision:     x1
    snapd_revision:     23177

$ snap list | grep 'steam'
steam                           1.0.0.81                    x1     -                   -                   -

[ashuntu]

The requirements are described in the docs that are linked in the error you discovered: https://github.com/flatpak/flatpak/wiki/User-namespace-requirements.

You have to do the steps described in https://github.com/flatpak/flatpak/wiki/User-namespace-requirements#changing-from-setuid-to-unprivileged, except for the last step for Flatpak.

[lorsanta]

I already did, this is my situation right now:

$ stat -c '%A %a %n' /usr/bin/bwrap
-rwxr-xr-x 755 /usr/bin/bwrap
$ sysctl kernel.unprivileged_userns_clone
kernel.unprivileged_userns_clone = 1
$ sysctl user.max_user_namespaces
user.max_user_namespaces = 30265
$ sysctl user.max_mnt_namespaces
user.max_mnt_namespaces = 30265

What am I missing?

[ashuntu]

You'll likely need to reboot, and make sure the changes are still applied.

[lorsanta]

Ok I just tried that, but it still shows me the same error

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