On Red Hat and Oracle Linux 7.0 and later, as well as uncertified versions of SuSE Linux, installation proceeds fine with no errors. However after stopping / starting the agent, the collector process (quest_sc_collector) does not start up and only the quest_launcher process is running. No errors or logs indicate reason for collector process not starting. On single-tier installations, this problem also extends to the quest_sc_mw and quest_sc_rep processes as well.
It has been noted that if you try to connect to the agent with the PAO GUI client, the processes do start up, and will stay up until the agent is restarted again.