What were you trying to do that didn't work?

Before updating to RHEL9.4 I had no problems running buildah with an dedicated user account with "linger" enabled.

$ buildah images

REPOSITORY   TAG   IMAGE ID   CREATED   SIZE

after updating to RHEL9.4 I get following warning (as I wrote, the user has a running dbus session ( enabled linger ).

$ buildah images                                                                                                                                                                                       
WARN[0000] The cgroupv2 manager is set to systemd but there is no systemd user session available                                                                                                                   
WARN[0000] For using systemd, you may need to log in using a user session                                                                                                                                          
WARN[0000] Alternatively, you can enable lingering with: `loginctl enable-linger 1201` (possibly as root)                                                                                                          
WARN[0000] Falling back to --cgroup-manager=cgroupfs                                                                                                                                                               
WARN[0000] The cgroupv2 manager is set to systemd but there is no systemd user session available                                                                                                                   
WARN[0000] For using systemd, you may need to log in using a user session                                
WARN[0000] Alternatively, you can enable lingering with: `loginctl enable-linger 1201` (possibly as root)                                                                                                          
WARN[0000] Falling back to --cgroup-manager=cgroupfs                                                     
REPOSITORY   TAG   IMAGE ID   CREATED   SIZE              

{{when doing }}

$ export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$(id -u)/bus

The warning message is gone.

This was not necessary in RHEL9.3.

"podman images" does not show such warning message.

Please provide the package NVR for which bug is seen:

podman-4.9.4-3.el9_4.x86_64
buildah-1.33.7-1.el9_4.x86_64
container-tools-1-14.el9.noarch

How reproducible:

everytime

Steps to reproduce

1. # useradd test
2. # loginctl enable-linger test
3. $ buildah images

Expected results

No warning messages

Actual results

 warning messages like above