[Podman] Fwd: Why can't I run a simple /bin/bash command from root on RHEL 8.5?

Not sure why this email is not showing up on the list ... ---------- Forwarded message --------- From: Peter Portante <pportant(a)redhat.com&gt; Date: Thu, Jan 27, 2022 at 12:17 PM Subject: Why can't I run a simple /bin/bash command from root on RHEL 8.5? To: <podman(a)lists.podman.io&gt; Cc: Yinchuan Song <yinsong(a)redhat.com&gt; Hi Folks, We are struggling to understand why we can run rootless containers on RHEL 8.5. Why can't I do the following (as described at [1]) as a non-root user: [pportant@intlab-006 ~]$ podman run --rm --name=myubi -it registry.access.redhat.com/ubi8/ubi /bin/bash [pportant@intlab-006 ~]$ echo $? 0 Shouldn't that start an interactive shell in the container? When I run as root I see: [root@intlab-006 ~]# podman run --rm --name=myubi -it registry.access.redhat.com/ubi8/ubi /bin/bash [root@intlab-006 ~]# echo $? 127 While on another RHEL 8.5 host it works just fine: [pportant@intlabproxy-002 ~]$ podman run --rm --name=myubi -it registry.access.redhat.com/ubi8/ubi /bin/bash [root@a9ef24a2578b /]# Any help would be appreciated. Thanks, -Peter [1] https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/...