Added exception on process fail to fmod_system_services at first services loading

plugins/functions/fmod_system_services.py

@@ -132,6 +132,10 @@ class Service(service.Service) :
 		proc_args = "%s --list" % (config.value(SERVICE_NAME, "chkconfig_prog_path"))
 		(proc_stdout, proc_sterr, proc_returncode) = tools.execProcess(proc_args)
 
+		if proc_returncode != 0 :
+			raise tools.SubprocessFailure("Error while execute \"%s\"\nStdout: %s\nStderr: %s\nReturn code: %d" % (
+				proc_args, proc_stdout.strip(), proc_stderr.strip(), proc_returncode ))
+
 		system_service_count = 0
 		shared.Functions.addShared(SERVICE_NAME)
 		for system_service_record in proc_stdout.split("\n") :