diff --git a/ROMFS/px4fmu_common/init.d/rcS b/ROMFS/px4fmu_common/init.d/rcS
index e8e57397c828..9349126c2ae5 100644
--- a/ROMFS/px4fmu_common/init.d/rcS
+++ b/ROMFS/px4fmu_common/init.d/rcS
@@ -43,6 +43,9 @@ mount -t procfs /proc
 #
 sercon
 
+# print full system version
+ver all
+
 #
 # Default to auto-start mode.
 #
diff --git a/src/drivers/bma180/bma180.cpp b/src/drivers/bma180/bma180.cpp
index 171f18a82c50..794ce824a033 100644
--- a/src/drivers/bma180/bma180.cpp
+++ b/src/drivers/bma180/bma180.cpp
@@ -243,9 +243,6 @@ BMA180::BMA180(int bus, spi_dev_e device) :
 {
 	_device_id.devid_s.devtype = DRV_ACC_DEVTYPE_BMA180;
 
-	// enable debug() calls
-	_debug_enabled = true;
-
 	// default scale factors
 	_accel_scale.x_offset = 0;
 	_accel_scale.x_scale  = 1.0f;
diff --git a/src/drivers/l3gd20/l3gd20.cpp b/src/drivers/l3gd20/l3gd20.cpp
index ed69387064f2..c2b059ec1d9b 100644
--- a/src/drivers/l3gd20/l3gd20.cpp
+++ b/src/drivers/l3gd20/l3gd20.cpp
@@ -433,9 +433,6 @@ L3GD20::L3GD20(int bus, const char *path, spi_dev_e device, enum Rotation rotati
 	_rotation(rotation),
 	_checked_next(0)
 {
-	// enable debug() calls
-	_debug_enabled = true;
-
 	_device_id.devid_s.devtype = DRV_GYR_DEVTYPE_L3GD20;
 
 	// default scale factors
diff --git a/src/drivers/lsm303d/lsm303d.cpp b/src/drivers/lsm303d/lsm303d.cpp
index 90bbdce99774..5e7a9819fd0c 100644
--- a/src/drivers/lsm303d/lsm303d.cpp
+++ b/src/drivers/lsm303d/lsm303d.cpp
@@ -583,18 +583,12 @@ LSM303D::LSM303D(int bus, const char *path, spi_dev_e device, enum Rotation rota
 	_last_temperature(0),
 	_checked_next(0)
 {
-
-
-	// enable debug() calls
-	_debug_enabled = true;
-
 	_device_id.devid_s.devtype = DRV_ACC_DEVTYPE_LSM303D;
 
 	/* Prime _mag with parents devid. */
 	_mag->_device_id.devid = _device_id.devid;
 	_mag->_device_id.devid_s.devtype = DRV_MAG_DEVTYPE_LSM303D;
 
-
 	// default scale factors
 	_accel_scale.x_offset = 0.0f;
 	_accel_scale.x_scale  = 1.0f;
diff --git a/src/drivers/mkblctrl/mkblctrl.cpp b/src/drivers/mkblctrl/mkblctrl.cpp
index 2453610acc5c..d95166d02069 100644
--- a/src/drivers/mkblctrl/mkblctrl.cpp
+++ b/src/drivers/mkblctrl/mkblctrl.cpp
@@ -241,7 +241,6 @@ MK::MK(int bus, const char *_device_path) :
 	strncpy(_device, _device_path, sizeof(_device));
 	/* enforce null termination */
 	_device[sizeof(_device) - 1] = '\0';
-	_debug_enabled = true;
 }
 
 MK::~MK()
diff --git a/src/drivers/pwm_out_sim/pwm_out_sim.cpp b/src/drivers/pwm_out_sim/pwm_out_sim.cpp
index 5c596585d2bb..e93ee8c8494b 100644
--- a/src/drivers/pwm_out_sim/pwm_out_sim.cpp
+++ b/src/drivers/pwm_out_sim/pwm_out_sim.cpp
@@ -190,7 +190,6 @@ PWMSim::PWMSim() :
 	_task_should_exit(false),
 	_mixers(nullptr)
 {
-	_debug_enabled = true;
 	memset(_controls, 0, sizeof(_controls));
 
 	_control_topics[0] = ORB_ID(actuator_controls_0);
diff --git a/src/drivers/stm32/adc/adc.cpp b/src/drivers/stm32/adc/adc.cpp
index 93e14f9672d9..ea03dbd2dbfd 100644
--- a/src/drivers/stm32/adc/adc.cpp
+++ b/src/drivers/stm32/adc/adc.cpp
@@ -156,8 +156,6 @@ ADC::ADC(uint32_t channels) :
 	_to_system_power(nullptr),
 	_to_adc_report(nullptr)
 {
-	_debug_enabled = true;
-
 	/* always enable the temperature sensor */
 	channels |= 1 << 16;
 
diff --git a/src/drivers/stm32/tone_alarm/tone_alarm.cpp b/src/drivers/stm32/tone_alarm/tone_alarm.cpp
index c22aefb3ee88..d651534f1d5d 100644
--- a/src/drivers/stm32/tone_alarm/tone_alarm.cpp
+++ b/src/drivers/stm32/tone_alarm/tone_alarm.cpp
@@ -296,7 +296,7 @@ class ToneAlarm : public device::CDev
 {
 public:
 	ToneAlarm();
-	~ToneAlarm();
+	~ToneAlarm() = default;
 
 	virtual int		init();
 
@@ -404,8 +404,6 @@ ToneAlarm::ToneAlarm() :
 	_next(nullptr),
 	_cbrk(CBRK_OFF)
 {
-	// enable debug() calls
-	//_debug_enabled = true;
 	_default_tunes[TONE_STARTUP_TUNE] = "MFT240L8 O4aO5dc O4aO5dc O4aO5dc L16dcdcdcdc";		// startup tune
 	_default_tunes[TONE_ERROR_TUNE] = "MBT200a8a8a8PaaaP";						// ERROR tone
 	_default_tunes[TONE_NOTIFY_POSITIVE_TUNE] = "MFT200e8a8a";					// Notify Positive tone
@@ -439,10 +437,6 @@ ToneAlarm::ToneAlarm() :
 	_tune_names[TONE_HOME_SET] = "home_set";
 }
 
-ToneAlarm::~ToneAlarm()
-{
-}
-
 int
 ToneAlarm::init()
 {
diff --git a/src/modules/uORB/uORBDevices.cpp b/src/modules/uORB/uORBDevices.cpp
index e4dfea89b7e4..2cc25a3a14e9 100644
--- a/src/modules/uORB/uORBDevices.cpp
+++ b/src/modules/uORB/uORBDevices.cpp
@@ -94,8 +94,6 @@ uORB::DeviceNode::DeviceNode(const struct orb_metadata *meta, const char *name,
 	_subscriber_count(0),
 	_publisher(0)
 {
-	// enable debug() calls
-	//_debug_enabled = true;
 }
 
 uORB::DeviceNode::~DeviceNode()
@@ -833,8 +831,6 @@ uORB::DeviceMaster::DeviceMaster(Flavor f) :
 	     (f == PUBSUB) ? TOPIC_MASTER_DEVICE_PATH : PARAM_MASTER_DEVICE_PATH),
 	_flavor(f)
 {
-	// enable debug() calls
-	//_debug_enabled = true;
 	_last_statistics_output = hrt_absolute_time();
 }
 
diff --git a/src/platforms/posix/drivers/adcsim/adcsim.cpp b/src/platforms/posix/drivers/adcsim/adcsim.cpp
index f6fa378026fe..cc191b962862 100644
--- a/src/platforms/posix/drivers/adcsim/adcsim.cpp
+++ b/src/platforms/posix/drivers/adcsim/adcsim.cpp
@@ -106,8 +106,6 @@ ADCSIM::ADCSIM(uint32_t channels) :
 	_channel_count(0),
 	_samples(nullptr)
 {
-	//_debug_enabled = true;
-
 	/* always enable the temperature sensor */
 	channels |= 1 << 16;
 
diff --git a/src/platforms/posix/drivers/tonealrmsim/tone_alarm.cpp b/src/platforms/posix/drivers/tonealrmsim/tone_alarm.cpp
index a491e987397b..699025a45d4d 100644
--- a/src/platforms/posix/drivers/tonealrmsim/tone_alarm.cpp
+++ b/src/platforms/posix/drivers/tonealrmsim/tone_alarm.cpp
@@ -117,7 +117,7 @@ class ToneAlarm : public VirtDevObj
 {
 public:
 	ToneAlarm();
-	~ToneAlarm();
+	~ToneAlarm() = default;
 
 	virtual int		devIOCTL(unsigned long cmd, unsigned long arg);
 	virtual ssize_t		devWrite(const void *buffer, size_t len);
@@ -218,8 +218,6 @@ ToneAlarm::ToneAlarm() :
 	_next(nullptr),
 	_note_call{}
 {
-	// enable debug() calls
-	//_debug_enabled = true;
 	_default_tunes[TONE_STARTUP_TUNE] = "MFT240L8 O4aO5dc O4aO5dc O4aO5dc L16dcdcdcdc";		// startup tune
 	_default_tunes[TONE_ERROR_TUNE] = "MBT200a8a8a8PaaaP";						// ERROR tone
 	_default_tunes[TONE_NOTIFY_POSITIVE_TUNE] = "MFT200e8a8a";					// Notify Positive tone
@@ -252,10 +250,6 @@ ToneAlarm::ToneAlarm() :
 	_tune_names[TONE_HOME_SET] = "home_set";
 }
 
-ToneAlarm::~ToneAlarm()
-{
-}
-
 unsigned
 ToneAlarm::note_to_divisor(unsigned note)
 {
diff --git a/src/systemcmds/ver/ver.c b/src/systemcmds/ver/ver.c
index c62e77f55b90..fdaf545f839f 100644
--- a/src/systemcmds/ver/ver.c
+++ b/src/systemcmds/ver/ver.c
@@ -115,10 +115,6 @@ int ver_main(int argc, char *argv[])
 					const char *board_name = px4_board_name();
 					ret = strcmp(board_name, argv[2]);
 
-					if (ret == 0) {
-						PX4_INFO("match: %s", board_name);
-					}
-
 					return ret;
 
 				} else {