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

On Fri, Jan 28, 2022 at 11:30 AM Nalin Dahyabhai <nalin(a)redhat.com&gt; wrote: On Thu, Jan 27, 2022 at 12:17:52PM -0500, Peter Portante wrote: > 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 <http://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 <http://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 <http://registry.access.redhat.com/ubi8/ubi> /bin/bash > [root@a9ef24a2578b /]# > > Any help would be appreciated. What differences do you see between the two situations when you pass a --log-level=info, or --log-level=debug, to podman? *[root@intlab-006 ~]# podman --log-level=info run --rm --name=myubi -it registry.access.redhat.com/ubi8/ubi <http://registry.access.redhat.com/ubi8/ubi> /bin/bash *INFO[0000] podman filtering at log level info INFO[0000] Not using native diff for overlay, this may cause degraded performance for building images: kernel has CONFIG_OVERLAY_FS_REDIRECT_DIR enabled INFO[0000] Found CNI network podman (type=bridge) at /etc/cni/net.d/87-podman-bridge.conflist INFO[0000] Setting parallel job count to 97 INFO[0000] Got pod network &{Name:myubi Namespace:myubi ID:c198a57f8fb8eebb2c8f391341fbb8bf0c02b84be2ee5b8b648e675adf07fb72 NetNS:/run/netns/cni-e0647a42-5e73-d803-a59b-b6d7102a61d3 Networks:[{Name:podman Ifname:eth0}] RuntimeConfig:map[podman:{IP: MAC: PortMappings:[] Bandwidth:<nil> IpRanges:[]}] Aliases:map[]} INFO[0000] Adding pod myubi_myubi to CNI network "podman" (type=bridge) INFO[0000] Running conmon under slice machine.slice and unitName libpod-conmon-c198a57f8fb8eebb2c8f391341fbb8bf0c02b84be2ee5b8b648e675adf07fb72.scope INFO[0000] Got Conmon PID as 527872 */bin/bash: error while loading shared libraries: libtinfo.so.6: cannot change memory protections * Nalin _______________________________________________ Podman mailing list --podman(a)lists.podman.io To unsubscribe send an email topodman-leave(a)lists.podman.io