diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/start_enb_and_ue_virt.bash b/targets/PROJECTS/GENERIC-LTE-EPC/start_enb_and_ue_virt.bash
index 8403a9882e..7843fd8692 100755
--- a/targets/PROJECTS/GENERIC-LTE-EPC/start_enb_and_ue_virt.bash
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/start_enb_and_ue_virt.bash
@@ -123,32 +123,23 @@ if [ $? -eq 1 ]; then
 fi 
 
 
-
 #######################################################
 # USIM, NVRAM files
 #######################################################
 export NVRAM_DIR=$THIS_SCRIPT_PATH
 
-if [ ! -f $OPENAIRCN_DIR/NAS/EURECOM-NAS/bin/ue_data ]; then
+if [ ! -f $OPENAIRCN_DIR/NAS/EURECOM-NAS/bin/ue_data ] || [ ! -f $OPENAIRCN_DIR/NAS/EURECOM-NAS/bin/usim_data ]; then
     if [ ! -f /tmp/nas_cleaned ]; then
         echo_success "make --directory=$OPENAIRCN_DIR/NAS/EURECOM-NAS veryveryclean"
         make --directory=$OPENAIRCN_DIR/NAS/EURECOM-NAS veryveryclean
     fi
-    echo_success "make --directory=$OPENAIRCN_DIR/NAS/EURECOM-NAS PROCESS=UE"
-    make -v --directory=$OPENAIRCN_DIR/NAS/EURECOM-NAS -f Makefile PROCESS=UE
+    echo_success "make --directory=$OPENAIRCN_DIR/NAS/EURECOM-NAS -f Makefile PROCESS=UE all"
+    make  -f Makefile --debug=b --directory=$OPENAIRCN_DIR/NAS/EURECOM-NAS PROCESS=UE all
     rm .ue.nvram
+    rm .usim.nvram
     touch /tmp/nas_cleaned
 fi
-if [ ! -f $OPENAIRCN_DIR/NAS/EURECOM-NAS/bin/usim_data ]; then
-    if [ ! -f /tmp/nas_cleaned ]; then
-        echo_success "make --directory=$OPENAIRCN_DIR/NAS/EURECOM-NAS veryveryclean"
-        make --directory=$OPENAIRCN_DIR/NAS/EURECOM-NAS veryveryclean
-    fi
-    echo_success "make --directory=$OPENAIRCN_DIR/NAS/EURECOM-NAS PROCESS=UE"
-    make --directory=$OPENAIRCN_DIR/NAS/EURECOM-NAS PROCESS=UE
-    rm .usim.nvram
-    rm /tmp/nas_cleaned
-fi
+
 if [ ! -f .ue.nvram ]; then
     echo_success "generate .ue_emm.nvram .ue.nvram"
     $OPENAIRCN_DIR/NAS/EURECOM-NAS/bin/ue_data --gen
@@ -171,12 +162,13 @@ echo_success "make $MAKE_IP_DRIVER_TARGET $MAKE_LTE_ACCESS_STRATUM_TARGET ....."
 #bash_exec "make --directory=$OPENAIR2_DIR $MAKE_IP_DRIVER_TARGET "
 make --directory=$OPENAIR2_DIR $MAKE_IP_DRIVER_TARGET || exit 1
 
+
 echo_success "make --debug=b --directory=$OPENAIR_TARGETS/SIMU/USER $MAKE_LTE_ACCESS_STRATUM_TARGET || exit 1" 
-#bash_exec "make --directory=$OPENAIR_TARGETS/SIMU/USER $MAKE_LTE_ACCESS_STRATUM_TARGET "
 #make --directory=$OPENAIR_TARGETS/SIMU/USER $MAKE_LTE_ACCESS_STRATUM_TARGET -j`grep -c ^processor /proc/cpuinfo ` || exit 1
 make --debug=b --directory=$OPENAIR_TARGETS/SIMU/USER $MAKE_LTE_ACCESS_STRATUM_TARGET || exit 1
 
 
+
 echo_success "Bringup UE interface..."
 bash_exec "insmod  $OPENAIR2_DIR/NETWORK_DRIVER/UE_IP/$IP_DRIVER_NAME.ko"
 
@@ -239,10 +231,10 @@ cd $THIS_SCRIPT_PATH
 # To start NAS connectivity: AT+CFUN=1
 # nohup xterm -hold -e $OPENAIRCN_DIR/NAS/EURECOM-NAS/bin/UserProcess &
 
-$OPENAIR_TARGETS/SIMU/USER/oaisim -a -u1 -l9 -K OUTPUT/$HOSTNAME/$ITTI_LOG_FILE --enb-conf $CONFIG_FILE_ENB 2>&1 | tee OUTPUT/$HOSTNAME/$STDOUT_LOG_FILE 
+gdb --args $OPENAIR_TARGETS/SIMU/USER/oaisim -a -u1 -l9 -K OUTPUT/$HOSTNAME/$ITTI_LOG_FILE --enb-conf $CONFIG_FILE_ENB 2>&1 | tee OUTPUT/$HOSTNAME/$STDOUT_LOG_FILE 
 # > OUTPUT/$HOSTNAME/$STDOUT_LOG_FILE 
 # | tee OUTPUT/$HOSTNAME/$STDOUT_LOG_FILE 
 
 #pkill tshark
-
+echo_warning "oaisim ended, filtering stdout form oaisim"
 cat OUTPUT/$HOSTNAME/$STDOUT_LOG_FILE | grep 'RRC\|S1AP\|SCTP\|PDCP\|NAS\|RLC' | grep -v 'RRC_MAC_IN_SYNC_IND' > OUTPUT/$HOSTNAME/$STDOUT_LOG_FILE.filtered
diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/start_epc.bash b/targets/PROJECTS/GENERIC-LTE-EPC/start_epc.bash
index c90803270a..fe485fb3ef 100755
--- a/targets/PROJECTS/GENERIC-LTE-EPC/start_epc.bash
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/start_epc.bash
@@ -195,7 +195,7 @@ then
     bash_exec "./autogen.sh"
     cd ./$OBJ_DIR
     echo_success "Invoking configure"
-    ../configure --enable-standalone-epc --enable-raw-socket-for-sgi  LDFLAGS=-L/usr/local/lib
+    ../configure HAVE_CHECK=true --enable-standalone-epc --enable-raw-socket-for-sgi  LDFLAGS=-L/usr/local/lib
 else
     cd ./$OBJ_DIR
 fi
@@ -339,5 +339,5 @@ nohup tshark -i $MME_INTERFACE_NAME_FOR_S6A    -w $THIS_SCRIPT_PATH/OUTPUT/$HOST
 
 cd $OPENAIRCN_DIR/$OBJ_DIR
 
-$OPENAIRCN_DIR/$OBJ_DIR/OAI_EPC/oai_epc -K $THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME/$ITTI_LOG_FILE -c $THIS_SCRIPT_PATH/$CONFIG_FILE_EPC  2>&1 | tee $THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME/$STDOUT_LOG_FILE 
+gdb --args $OPENAIRCN_DIR/$OBJ_DIR/OAI_EPC/oai_epc -K $THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME/$ITTI_LOG_FILE -c $THIS_SCRIPT_PATH/$CONFIG_FILE_EPC  2>&1 | tee $THIS_SCRIPT_PATH/OUTPUT/$HOSTNAME/$STDOUT_LOG_FILE 
 
diff --git a/targets/PROJECTS/GENERIC-LTE-EPC/utils.bash b/targets/PROJECTS/GENERIC-LTE-EPC/utils.bash
index 05cf10becd..6bba00aab4 100755
--- a/targets/PROJECTS/GENERIC-LTE-EPC/utils.bash
+++ b/targets/PROJECTS/GENERIC-LTE-EPC/utils.bash
@@ -471,6 +471,7 @@ check_install_epc_software() {
     test_install_package automake
     test_install_package bison
     test_install_package build-essential
+    test_install_package check
     test_install_package cmake
     test_install_package cmake-curses-gui
     test_install_package ethtool