From: "Paul Davis"
<paul(a)linuxaudiosystems.com>
2. chrt: failed to set pid 0's policy: Operation not permitted
you *must* get these permissions correct BUT at the same time, i have no
idea why this script is trying to set the RT priority of PID 0, which is
typically init(1), the program that starts a Unix system running.
init is pid 1. There is no pid 0.