If you're tired of manually managing images, look into the ishare2 script —it's a lifesaver for pulling and installing images directly from the CLI.
Use the latest .ova file for a clean installation rather than an in-place upgrade to avoid legacy configuration conflicts. pnetlab 5311 best
You might ask, "If 5311 is the best, why not use version 6.0?" If you're tired of manually managing images, look