diff --git a/posix-configs/SITL/init/ekf2/multiple_iris b/posix-configs/SITL/init/ekf2/multiple_iris
index f9ca63c4b2..a71916d7d2 100644
--- a/posix-configs/SITL/init/ekf2/multiple_iris
+++ b/posix-configs/SITL/init/ekf2/multiple_iris
@@ -72,6 +72,6 @@ mavlink stream -r 50 -s ATTITUDE_TARGET -u _MAVPORT_
 mavlink stream -r 20 -s RC_CHANNELS -u _MAVPORT_
 mavlink stream -r 250 -s HIGHRES_IMU -u _MAVPORT_
 mavlink stream -r 10 -s OPTICAL_FLOW_RAD -u _MAVPORT_
-sdlog2 start -r 100 -e -t -a
+logger start -e -t
 mavlink boot_complete
 replay trystart
diff --git a/posix-configs/SITL/init/ekf2/rover b/posix-configs/SITL/init/ekf2/rover
index a9e72d1426..a5fd02702c 100644
--- a/posix-configs/SITL/init/ekf2/rover
+++ b/posix-configs/SITL/init/ekf2/rover
@@ -67,6 +67,6 @@ mavlink stream -r 80 -s ATTITUDE_TARGET -u 14556
 mavlink stream -r 20 -s RC_CHANNELS -u 14556
 mavlink stream -r 250 -s HIGHRES_IMU -u 14556
 mavlink stream -r 10 -s OPTICAL_FLOW_RAD -u 14556
-sdlog2 start -r 200 -e -t -a
+logger start -e -t
 mavlink boot_complete
 replay trystart
diff --git a/posix-configs/SITL/init/ekf2/solo b/posix-configs/SITL/init/ekf2/solo
index a459ce233c..250e51a907 100644
--- a/posix-configs/SITL/init/ekf2/solo
+++ b/posix-configs/SITL/init/ekf2/solo
@@ -70,6 +70,6 @@ mavlink stream -r 50 -s SERVO_OUTPUT_RAW_0 -u 14556
 mavlink stream -r 20 -s RC_CHANNELS -u 14556
 mavlink stream -r 250 -s HIGHRES_IMU -u 14556
 mavlink stream -r 10 -s OPTICAL_FLOW_RAD -u 14556
-sdlog2 start -r 100 -e -t -a
+logger start -e -t
 mavlink boot_complete
 replay trystart
diff --git a/posix-configs/SITL/init/ekf2/tailsitter b/posix-configs/SITL/init/ekf2/tailsitter
index cff93d3cf7..ae97ff4bdc 100644
--- a/posix-configs/SITL/init/ekf2/tailsitter
+++ b/posix-configs/SITL/init/ekf2/tailsitter
@@ -72,6 +72,6 @@ mavlink stream -r 80 -s ATTITUDE_TARGET -u 14556
 mavlink stream -r 20 -s RC_CHANNELS -u 14556
 mavlink stream -r 250 -s HIGHRES_IMU -u 14556
 mavlink stream -r 10 -s OPTICAL_FLOW_RAD -u 14556
-sdlog2 start -r 200 -e -t -a
+logger start -e -t
 mavlink boot_complete
 replay trystart
diff --git a/posix-configs/SITL/init/inav/iris_opt_flow b/posix-configs/SITL/init/inav/iris_opt_flow
index af90080856..87ceda20a2 100644
--- a/posix-configs/SITL/init/inav/iris_opt_flow
+++ b/posix-configs/SITL/init/inav/iris_opt_flow
@@ -74,6 +74,6 @@ mavlink stream -r 80 -s ATTITUDE_TARGET -u 14556
 mavlink stream -r 20 -s RC_CHANNELS -u 14556
 mavlink stream -r 250 -s HIGHRES_IMU -u 14556
 mavlink stream -r 10 -s OPTICAL_FLOW_RAD -u 14556
-sdlog2 start -r 100 -e -t -a
+logger start -e -t
 mavlink boot_complete
 replay trystart
diff --git a/posix-configs/SITL/init/rcS_gazebo_delta_wing b/posix-configs/SITL/init/rcS_gazebo_delta_wing
index 4627dc3dbe..4a31913644 100644
--- a/posix-configs/SITL/init/rcS_gazebo_delta_wing
+++ b/posix-configs/SITL/init/rcS_gazebo_delta_wing
@@ -55,6 +55,6 @@ mavlink stream -r 80 -s ATTITUDE_TARGET -u 14556
 mavlink stream -r 20 -s RC_CHANNELS -u 14556
 mavlink stream -r 250 -s HIGHRES_IMU -u 14556
 mavlink stream -r 10 -s OPTICAL_FLOW_RAD -u 14556
-sdlog2 start -r 200 -e -t -a
+logger start -e -t
 mavlink boot_complete
 replay trystart
diff --git a/posix-configs/excelsior/mainapp.config b/posix-configs/excelsior/mainapp.config
index ca833e1e54..9c5ac75c8a 100644
--- a/posix-configs/excelsior/mainapp.config
+++ b/posix-configs/excelsior/mainapp.config
@@ -1,8 +1,7 @@
 uorb start
 muorb start
-sdlog2 start -r 100 -e -t -a -b 200
+logger start -e -t
 param set MAV_BROADCAST 1
-param set SDLOG_PRIO_BOOST 3
 dataman start
 navigator start
 sleep 2