-You have to modprobe the lttng-modules manually or the session daemon will do
-it for you if those modules can be found on your system.
+You can start the session daemon by invoking the command "lttng-sessiond",
+or let the lttng command line tool do it for you. The session daemon
+loads the LTTng tracer modules for you if those modules can be found on
+your system. If they are not found, the kernel tracing feature will be
+unavailable.