I have v2.9.38 running on my RB500. For testing purpose I want to try v3.0beta6, therefore I downloaded v3.0beta6-netinstall.
I followed this guide http://www.mikrotik.com/testdocs/ros/2. ... nstall.php
but the Mikrotik Router Intaller v3.0beta6 doesn't show up the MT, there's only hardisk D:\ ...
Is there a other way to install v3.0 on RB500?