diff --git a/cmake_targets/CMakeLists.txt b/cmake_targets/CMakeLists.txt
index 506fad9a4d..46e33e8803 100644
--- a/cmake_targets/CMakeLists.txt
+++ b/cmake_targets/CMakeLists.txt
@@ -236,7 +236,7 @@ endif()
 
 add_definitions("-DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_FCNTL_H=1 -DHAVE_ARPA_INET_H=1 -DHAVE_SYS_TIME_H=1 -DHAVE_SYS_SOCKET_H=1 -DHAVE_STRERROR=1 -DHAVE_SOCKET=1 -DHAVE_MEMSET=1 -DHAVE_GETTIMEOFDAY=1 -DHAVE_STDLIB_H=1 -DHAVE_MALLOC=1 -DHAVE_LIBSCTP")
 
-set(commonOpts "-pipe -Wno-packed-bitfield-compat -fPIC -Wall -fno-strict-aliasing -rdynamic -march=native")
+set(commonOpts "-pipe -Wno-packed-bitfield-compat -fPIC -Wall -fno-strict-aliasing -rdynamic")
 
 set(CMAKE_C_FLAGS
   "${CMAKE_C_FLAGS} ${C_FLAGS_PROCESSOR} ${commonOpts} -std=gnu99 -funroll-loops")
diff --git a/cmake_targets/install_external_packages.ubuntu20 b/cmake_targets/install_external_packages.ubuntu20
deleted file mode 100755
index a2f6a9709c..0000000000
--- a/cmake_targets/install_external_packages.ubuntu20
+++ /dev/null
@@ -1,499 +0,0 @@
-#!/bin/bash
-#/*
-# * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
-# * contributor license agreements.  See the NOTICE file distributed with
-# * this work for additional information regarding copyright ownership.
-# * The OpenAirInterface Software Alliance licenses this file to You under
-# * the OAI Public License, Version 1.1  (the "License"); you may not use this file
-# * except in compliance with the License.
-# * You may obtain a copy of the License at
-# *
-# *      http://www.openairinterface.org/?page_id=698
-# *
-# * Unless required by applicable law or agreed to in writing, software
-# * distributed under the License is distributed on an "AS IS" BASIS,
-# * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# * See the License for the specific language governing permissions and
-# * limitations under the License.
-# *-------------------------------------------------------------------------------
-# * For more information about the OpenAirInterface (OAI) Software Alliance:
-# *      contact@openairinterface.org
-# */
-
-# brief
-# authors Laurent Thomas
-#
-#######################################
-
-if [ ! -f /etc/os-release ]; then
-    echo "No /etc/os-release file found. You're likely on an unsupported distro."
-    exit 1
-fi
-OS_DISTRO=$(grep "^ID=" /etc/os-release | sed "s/ID=//" | sed "s/\"//g")
-OS_RELEASE=$(grep "^VERSION_ID=" /etc/os-release | sed "s/VERSION_ID=//" | sed "s/\"//g")
-case "$OS_DISTRO" in
-    ubuntu) OS_BASEDISTRO="debian"; INSTALLER="apt"; CMAKE="cmake" ;;
-esac
-
-SUDO='sudo -E'
-
-###############################
-## echo and  family
-###############################
-black='\E[30m'
-red='\E[31m'
-green='\E[32m'
-yellow='\E[33m'
-blue='\E[1;34m'
-magenta='\E[35m'
-cyan='\E[36m'
-white='\E[37m'
-reset_color='\E[00m'
-COLORIZE=1
-
-cecho()  {
-    # Color-echo
-    # arg1 = message
-    # arg2 = color
-    local default_msg="No Message."
-    message=${1:-$default_msg}
-    color=${2:-$green}
-    [ "$COLORIZE" = "1" ] && message="$color$message$reset_color"
-    echo -e "$message"
-    return
-}
-
-echo_error()   { cecho "$* $red"          ;}
-echo_fatal()   { cecho "$* $red"; exit 1  ;}
-echo_warning() { cecho "$* $yellow"       ;}
-echo_success() { cecho "$* $green"        ;}
-echo_info()    { cecho "$* $blue"         ;}
-
-########################
-# distribution helpers #
-########################
-
-# This function return a string to identify the distribution we are running
-# Examples:
-#   ubuntu16.04
-#   debian8.5
-get_distribution_release() {
-    echo "$OS_DISTRO$OS_RELEASE"
-}
-
-check_supported_distribution() {
-    case $(get_distribution_release) in
-        "ubuntu20.04") return 0 ;;
-        "ubuntu20.10") return 0 ;;
-        "ubuntu21.04") return 0 ;;
-        "ubuntu21.10") return 0 ;;
-    esac
-    return 1
-}
-
-##################
-# Error handlers #
-##################
-
-handler_EXIT() {
-    local exit_code=$?
-    [ "$exit_code" -eq 0 ] || echo_error "build have failed"
-    exit $exit_code
-}
-
-trap handler_EXIT EXIT
-
-###########################
-# Cleaners
-###########################
-
-clean_kernel() {
-    $SUDO modprobe ip_tables
-    $SUDO modprobe x_tables
-    $SUDO iptables -P INPUT ACCEPT
-    $SUDO iptables -F INPUT
-    $SUDO iptables -P OUTPUT ACCEPT
-    $SUDO iptables -F OUTPUT
-    $SUDO iptables -P FORWARD ACCEPT
-    $SUDO iptables -F FORWARD
-    $SUDO iptables -t nat -F
-    $SUDO iptables -t mangle -F
-    $SUDO iptables -t filter -F
-    $SUDO iptables -t raw -F
-    echo_info "Flushed iptables"
-    $SUDO rmmod nasmesh > /dev/null 2>&1
-    $SUDO rmmod oai_nw_drv  > /dev/null 2>&1
-    $SUDO rmmod openair_rf > /dev/null 2>&1
-    $SUDO rmmod ue_ip > /dev/null 2>&1
-    echo_info "removed drivers from kernel"
-}
-
-clean_all_files() {
-    set_openair_env
-    rm -rf "$OPENAIR_DIR"/targets/bin/*
-    dir="$OPENAIR_DIR/cmake_targets"
-    rm -rf "$dir"/log/*
-    rm -rf "$dir"/ran_build/build
-    rm -rf "$dir"/ran_build_noLOG/build
-    rm -rf "$dir"/lte-simulators/build 
-    rm -rf "$dir"/nas_sim_tools/build 
-    rm -rf "$dir"/oaisim_build_oai/build
-    rm -rf "$dir"/oaisim_build_oai/CMakeLists.txt
-    rm -rf "$dir"/autotests/bin
-    rm -rf "$dir"/autotests/log
-    rm -rf "$dir"/autotests/*/build
-}
-
-############################################
-# External packages installers
-############################################
-
-install_protobuf_from_source(){
-    protobuf_install_log=$OPENAIR_DIR/cmake_targets/log/protobuf_install_log.txt
-    echo_info "\nInstalling Google Protobuf from sources. The log file for Protobuf installation is here: $protobuf_install_log "
-    (
-	cd /tmp || exit
-	echo "Downloading protobuf"
-	#rm -rf /tmp/protobuf-2.6.1.tar.gz* /tmp/protobuf-2.6.1
-	#wget https://github.com/protocolbuffers/protobuf/releases/download/v2.6.1/protobuf-2.6.1.tar.gz
-	#tar -xzvf protobuf-2.6.1.tar.gz --owner $USER --group $USER --no-same-owner
-	#cd protobuf-2.6.1/
-	rm -rf /tmp/protobuf-cpp-3.3.0.tar.gz* /tmp/protobuf-3.3.0
-	wget --tries=3 --retry-connrefused https://github.com/protocolbuffers/protobuf/releases/download/v3.3.0/protobuf-cpp-3.3.0.tar.gz
-	tar -xzvf protobuf-cpp-3.3.0.tar.gz --owner "$USER" --group "$(groups | cut -d" " -f1)" --no-same-owner
-	cd protobuf-3.3.0/ || exit
-	./configure
-	echo "Compiling protobuf"
-	make -j"$(nproc)"
-	$SUDO make install
-	$SUDO ldconfig
-    ) >& "$protobuf_install_log"
-}
-
-install_protobuf_c_from_source(){
-    protobuf_c_install_log=$OPENAIR_DIR/cmake_targets/log/protobuf_c_install_log.txt
-    echo_info "\nInstalling Google Protobuf_C from sources. The log file for Protobuf_C installation is here: $protobuf_c_install_log "
-    (
-	if [[ "$OS_DISTRO" == "rhel" ]] || [[ "$OS_DISTRO" == "centos" ]]; then
-            export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
-	fi
-	cd /tmp || exit
-	echo "Downloading protobuf-c"
-	rm -rf /tmp/protobuf-c
-	git clone https://github.com/protobuf-c/protobuf-c.git
-	cd protobuf-c || exit
-	git checkout 2a46af42784abf86804d536f6e0122d47cfeea45
-	./autogen.sh
-	./configure
-	echo "Compiling protobuf-c"
-	make -j"$(nproc)"
-	$SUDO make install
-	$SUDO ldconfig
-    ) >& "$protobuf_c_install_log"
-}
-
-install_usrp_uhd_driver_from_source(){
-    uhd_install_log=$OPENAIR_DIR/cmake_targets/log/uhd_install_log.txt
-    echo_info "\nInstalling UHD driver from sources. The log file for UHD driver installation is here: $uhd_install_log "
-    (
-	cd /tmp || exit
-	echo "Downloading UHD driver"
-	rm -rf /tmp/uhd
-	git clone https://github.com/EttusResearch/uhd.git
-	cd uhd || exit
-	git checkout UHD-3.15.LTS
-	mkdir -p host/build
-	cd host/build || exit
-	$CMAKE ../ -GNinja
-	echo "Compiling UHD"
-	ninja
-	$SUDO ninja install
-	$SUDO ldconfig
-        $SUDO /usr/lib/uhd/utils/uhd_images_downloader.py
-    ) >& "$uhd_install_log"
-}
-
-install_bladerf_driver_from_source(){
-    bladerf_install_log=$OPENAIR_DIR/cmake_targets/log/bladerf_install_log.txt
-    echo_info "\nInstalling BladeRF driver from sources. The log file for BladeRF driver installation is here: $bladerf_install_log "
-    (
-	cd /tmp || exit
-	echo "Downloading BladeRF driver"
-	rm -rf /tmp/bladeRF
-	git clone https://github.com/Nuand/bladeRF.git
-	cd bladeRF || exit
-	git checkout tags/2016.06
-	mkdir -p build
-	cd build || exit
-	$CMAKE ../
-	echo "Compiling BladeRF driver"
-	make -j"$(nproc)"
-	$SUDO make install
-	$SUDO ldconfig
-	echo "Downloading FPGA and firmware images"
-	cd /tmp/bladeRF || exit
-	wget --tries=3 --retry-connrefused https://www.nuand.com/fx3/bladeRF_fw_latest.img
-	wget --tries=3 --retry-connrefused https://www.nuand.com/fpga/hostedx40-latest.rbf
-	sudo mkdir -p /usr/share/Nuand/bladeRF
-	sudo mv bladeRF_fw_latest.img /usr/share/Nuand/bladeRF/bladeRF_fw.img
-	sudo mv hostedx40-latest.rbf /usr/share/Nuand/bladeRF/hostedx40.rbf
-    ) >& "$bladerf_install_log"
-}
-
-check_install_bladerf_driver(){
-    if [[ "$OS_DISTRO" == "ubuntu" ]]; then
-        $SUDO apt-get install -y  bladerf libbladerf-dev
-        $SUDO apt-get install -y bladerf-firmware-fx3
-        $SUDO apt-get install -y bladerf-fpga-hostedx40
-    elif [[ "$OS_BASEDISTRO" == "fedora" ]]; then
-        install_bladerf_driver_from_source
-    else
-        echo_error "BladeRF Installer for OAI does not support automatic build. Install BladeRF compiling sources manually from BladeRF website"
-    fi
-}
-
-flash_firmware_bladerf() {
-    $SUDO bladeRF-cli --flash-firmware /usr/share/Nuand/bladeRF/bladeRF_fw.img
-}
-
-install_soapy_from_source(){
-    soapy_install_log=$OPENAIR_DIR/cmake_targets/log/soapy_install_log.txt
-    echo_info "\nInstalling Soapy EcoSystem from source. The log file for Soapy installation is here: $soapy_install_log "
-    (
-	cd /tmp || exit
-	echo "Downloading SoapySDR"
-	rm -rf /tmp/soapysdr
-	git clone -b soapy-sdr-0.7.0 --single-branch https://github.com/pothosware/SoapySDR.git
-	cd SoapySDR || exit
-	#git checkout tags/release_003_010_001_001
-	mkdir -p build
-	cd build || exit
-	$CMAKE ../
-	echo "Compiling SoapySDR"
-	make -j"$(nproc)"
-	$SUDO make install
-	$SUDO ldconfig
-	cd /tmp || exit
-	echo "Downloading SoapyRemote"
-	rm -rf /tmp/soapyremote
-	git clone -b soapy-remote-0.5.0 --single-branch https://github.com/pothosware/SoapyRemote.git
-	cd SoapyRemote || exit
-	#git checkout tags/release_003_010_001_001
-	mkdir -p build
-	cd build || exit
-	cmake ../
-	echo "Compiling SoapyRemote"
-	make -j"$(nproc)"
-	$SUDO make install
-	$SUDO ldconfig
-    ) >& "$soapy_install_log"
-}
-
-install_soapy_iris_from_source(){
-    iris_install_log=$OPENAIR_DIR/cmake_targets/log/iris_install_log.txt
-    echo_info "\nInstalling Iris driver from source. The log file for Iris driver installation is here: $iris_install_log "
-    (
-	cd /tmp || exit
-	echo "Downloading SoapyIris"
-	rm -rf /tmp/sklk-soapyiris
-	git clone -b soapy-iris-2018.08.0.1 --single-branch https://github.com/skylarkwireless/sklk-soapyiris.git
-	cd sklk-soapyiris || exit
-	mkdir -p build
-	cd build ||exit
-	cmake ../
-	echo "Compiling SoapyIris"
-	make -j"$(nproc)"
-	$SUDO make install
-	$SUDO ldconfig
-    ) >& "$iris_install_log"
-}
-
-check_install_soapy () {
-    #if [[ "$OS_DISTRO" == "ubuntu" ]]; then
-    #first we remove old installation
-    $SUDO apt-get remove -y soapysdr soapysdr-server libsoapysdr-dev python-soapysdr python3-soapysdr soapysdr-module-remote || true
-    #$SUDO add-apt-repository -y ppa:myriadrf/drivers
-    #$SUDO apt-get update
-    #$SUDO apt-get install -y soapysdr soapysdr-server libsoapysdr-dev python-soapysdr python3-soapysdr soapysdr-module-remote
-
-    #elif [[ "$OS_BASEDISTRO" == "fedora" ]]; then
-    #    $SUDO $INSTALLER -y install software-properties-common python3-software-properties python-software-properties subversion git python3 python-numpy python3-numpy cmake swig python-dev
-    install_soapy_from_source
-    #fi
-    install_soapy_iris_from_source
-    
-}
-
-check_install_ubuntu_packages() {
-    $SUDO $INSTALLER update -y
-    if [[ "$OS_DISTRO" == "ubuntu" ]]; then
-	local LAPACK_LIBNAME="liblapack.so"
-	local LAPACK_TARGET="/usr/lib/atlas-base/atlas/liblapack.so"
-	$SUDO apt install -y software-properties-common
-	case "$(get_distribution_release)" in
-            "ubuntu20.04")
-		specific_packages="libtasn1-6-dev libgnutls28-dev iproute2 libconfig-dev"
-		LAPACK_LIBNAME="liblapack.so-x86_64-linux-gnu"
-		LAPACK_TARGET="/usr/lib/x86_64-linux-gnu/atlas/liblapack.so"
-		;;
-            "ubuntu21.04")
-		specific_packages="libtasn1-6-dev libgnutls28-dev iproute2 libconfig-dev"
-		LAPACK_LIBNAME="liblapack.so-x86_64-linux-gnu"
-		LAPACK_TARGET="/usr/lib/x86_64-linux-gnu/atlas/liblapack.so"
-		;;
-	esac
-	$SUDO $INSTALLER install -y \
-	      $specific_packages \
-	      check  \
-              dialog \
-              dkms \
-              gawk \
-              libboost-all-dev \
-              libpthread-stubs0-dev \
-              openvpn \
-              pkg-config \
-              python3-dev  \
-              sshfs \
-              swig  \
-              tshark \
-              uml-utilities \
-              unzip  \
-              valgrind  \
-              vlan      \
-              exuberant-ctags \
-              ntpdate \
-              iperf3 \
-              android-tools-adb \
-              wvdial \
-              sshpass \
-              nscd \
-              bc \
-              ntp \
-              python3-scipy \
-              python3-matplotlib \
-	      bison  \
-	      build-essential \
-	      cmake \
-	      cmake-curses-gui  \
-              ninja-build \
-	      doxygen \
-	      doxygen-gui \
-	      texlive-latex-base \
-	      ethtool \
-	      flex  \
-	      gdb  \
-	      git \
-	      graphviz \
-	      gtkwave \
-	      iperf \
-	      iptables \
-	      libxtables-dev \
-	      libatlas-base-dev \
-	      libblas-dev \
-	      liblapack-dev\
-	      liblapacke-dev\
-	      libffi-dev \
-	      libforms-bin \
-	      libforms-dev \
-	      libgcrypt20-dev \
-	      libgmp-dev \
-	      libgtk-3-dev \
-	      libidn2-0-dev  \
-	      libidn11-dev \
-	      libmysqlclient-dev  \
-	      libpython2.7-dev \
-	      libsctp1  \
-	      libsctp-dev  \
-	      libssl-dev  \
-	      libtool  \
-	      libusb-1.0-0-dev \
-	      libxml2 \
-	      libxml2-dev  \
-	      libxslt1-dev \
-	      octave-signal \
-	      openssh-client \
-	      openssh-server \
-	      openssl \
-	      python3  \
-	      subversion \
-	      xmlstarlet \
-	      python3-pip \
-	      libyaml-dev \
-	      wget \
-	      libxpm-dev \
-              libboost-all-dev \
-	      nettle-dev \
-	      nettle-bin \
-              libreadline-dev
-    fi
-    
-    $SUDO update-alternatives --set "$LAPACK_LIBNAME" "$LAPACK_TARGET"
-    
-}
-
-install_asn1c_from_source(){
-    asn1_install_log=$OPENAIR_DIR/cmake_targets/log/asn1c_install_log.txt
-    echo_info "\nInstalling ASN1. The log file for ASN1 installation is here: $asn1_install_log "
-    (
-	$SUDO rm -rf /tmp/asn1c
-	# GIT_SSL_NO_VERIFY=true git clone https://gitlab.eurecom.fr/oai/asn1c.git /tmp/asn1c
-	git clone https://gitlab.eurecom.fr/oai/asn1c.git /tmp/asn1c
-	cd /tmp/asn1c || exit
-	# better to use a given commit than a branch in case the branch
-	# is updated and requires modifications in the source of OAI
-	#git checkout velichkov_s1ap_plus_option_group
-	git checkout f12568d617dbf48497588f8e227d70388fa217c9
-	autoreconf -iv
-	./configure
-	make -j"$(nproc)"
-	$SUDO make install
-	cd - || exit
-	$SUDO ldconfig
-    ) > "$asn1_install_log" 2>&1
-}
-
-################################
-# set_openair_env
-###############################
-set_openair_env(){
-    fullpath=$(readlink -f "${BASH_SOURCE[0]}")
-    [ -f "/.$fullpath" ] || fullpath=$(readlink -f "$PWD/$fullpath")
-    openair_path=${fullpath%/cmake_targets/*}
-    openair_path=${openair_path%/targets/*}
-    openair_path=${openair_path%/openair[123]/*}
-    export OPENAIR_DIR=$openair_path
-    export OPENAIR1_DIR=$openair_path/openair1
-    export OPENAIR2_DIR=$openair_path/openair2
-    export OPENAIR3_DIR=$openair_path/openair3
-    export OPENAIR_TARGETS=$openair_path/targets
-}
-
-if ! check_supported_distribution; then
-    echo_error "Your distribution $(get_distribution_release) is not supported by oai !"
-    exit 1
-fi
-set_openair_env
-echo_info "Installing packages"
-check_install_ubuntu_packages
-
-echo_info "installing ASN.1 compiler"
-install_asn1c_from_source
-
-echo_info "installing protobuf/protobuf-c for flexran agent support"
-install_protobuf_from_source
-install_protobuf_c_from_source
-
-if [ "$1" == "USRP" ] ; then
-    echo_info "installing packages for USRP support"
-    install_usrp_uhd_driver
-fi
-if [ "$1" == "BLADERF" ] ; then
-    echo_info "installing packages for BLADERF support"
-    check_install_bladerf_driver
-    flash_firmware_bladerf
-fi
-if [ "$1" == "IRIS" ] ; then
-    echo_info "installing packages for IRIS support"
-    check_install_soapy
-    #  flash_firmware_iris
-fi