title: Can not access folder after chown with podman unshare
body: <p>I have a rootless setup (podman is running in user space and the container I'm starting is also rootless. Now I wan't to mount a volume. To do so I'm using <code>podman unshare chown</code> but after executing this, I can not access the folder anymore</p>
  <p>The initial permissions:</p>
  <pre><code>$ ls -lan
  drwxrwxr-x.  2 1000 1000   19  5. Apr 14:02 postgresql-application
  drwxrwxr-x.  2 1000 1000   19  5. Apr 13:52 postgresql-keycloak
  </code></pre>
  <p>Setting permissions with unshare for my containers:</p>
  <pre><code>$podman unshare chown -R 1001:1001 postgresql-application
  
  $ podman unshare ls -lan
  drwxrwxr-x.  2 1001 1001   19  5. Apr 14:02 postgresql-application
  drwxrwxr-x.  2    0    0   19  5. Apr 13:52 postgresql-keycloak
  </code></pre>
  <p>Permissions form my users perspective</p>
  <pre><code>$ ls -lan
  drwxrwxr-x.  2 101000 101000   19  5. Apr 14:02 postgresql-application
  drwxrwxr-x.  2   1000   1000   19  5. Apr 13:52 postgresql-keycloak
  </code></pre>
  <p>No access to my folder anymore</p>
  <pre><code>$ touch postgresql-application/test
  touch: 'postgresql-application/test' kann nicht berührt werden: Keine Berechtigung
  </code></pre>
  <p>Although I can not access the folder mounted to a container because podman is running as my user and is also not able to access the folder</p>
  <pre><code>$ podman run -it -v ./postgresql-application/:/bitnami/postgresql/:Z docker.io/bitnami/postgresql:12 ls -lan /bitnami &amp;&amp; ls -lan /bitnami/postgresql
  
  total 0
  drwxr-xr-x. 3    0    0 24 Apr  5 04:59 .
  dr-xr-xr-x. 1    0    0 65 Apr  5 12:16 ..
  drwxrwxr-x. 2 1001 1001 19 Apr  5 12:02 postgresql
  ls: Zugriff auf '/bitnami/postgresql' nicht möglich: Datei oder Verzeichnis nicht gefunden
  </code></pre>