[Podman] "Error: cannot mount using driver overlay in rootless mode"

moving on to adding a demo of "podman mount" to my course and, whoops: $ podman mount -a Error: cannot mount using driver overlay in rootless mode $ quick google brings me here: https://github.com/containers/libpod/issues/2739 but while i peruse that to try to understand it, it's worth noting that "man podman-mount" gives no warning about this possible outcome. should it? rday -- ======================================================================== Robert P. J. Day Ottawa, Ontario, CANADA http://crashcourse.ca Twitter: http://twitter.com/rpjday LinkedIn: http://ca.linkedin.com/in/rpjday ========================================================================