Can anyone tell me how can i install gnuradio 3.8 on Ubuntu 18.0.4 LTS? I
have tried these two instructions but i have the same result my laptop
crashes
1)

   -

   sudo apt update
   -

   sudo apt upgrade
   -

   sudo ldconfig
   -

   sudo update-alternatives --install /usr/bin/python python
   /usr/bin/python2.7 1
   - sudo update-alternatives --install /usr/bin/python python
   /usr/bin/python3.6 2
   -
   - sudo update-alternatives --set python /usr/bin/python3.6
   - sudo apt install python3-pip
   - pip3 install --upgrade setuptools
   - pip3 install click
   -
   -

   sudo apt install git cmake g++ libboost-all-dev libgmp-dev swig
   python3-numpy python3-mako python3-sphinx python3-lxml doxygen libfftw3-dev
   libcomedi-dev libsdl1.2-dev libgsl-dev libqwt-qt5-dev libqt5opengl5-dev
   python3-pyqt5 liblog4cpp5-dev libzmq3-dev python3-yaml python3-click
   python3-click-plugins python3-zmq
   -

   sudo ldconfig
   sudo apt install python3-scipy libgsm1-dev libcodec2-dev liborc-0.4-dev
   libgmp3-dev portaudio19-dev
   -
   -

   git clone --recursive -b maint-3.8 --single-branch
   https://github.com/gnuradio/gnuradio.git
   -

   cd gnuradio/
   -

   mkdir build
   -

   cd build
   -

   cmake ../

make -j4 ( right here computer chashes at 87% three times straight)

   - make test
   -

   sudo make install
   -

   sudo ldconfig

gnuradio-companion


2)

sudo apt-get install python-pip python-apt
sudo -H pip install PyBOMBS
mkdir ~/sdrcd ~/sdr
pybombs auto-config
pybombs recipes add gr-recipes git+https://github.com/gnuradio/gr-recipes.git
pybombs recipes add gr-etcetera git+https://github.com/gnuradio/gr-etcetera.git
pybombs prefix init ~/sdr
sed -i 's/2\.6/3.6/g' setup_env.sh
sed -i 's/2\.7/3/g' setup_env.sh
source ~/sdr/setup_env.sh
pybombs install uhd
sudo apt install git cmake g++ libboost-all-dev libgmp-dev \
  swig python3-numpy python3-mako python3-sphinx python3-lxml \
  doxygen libfftw3-dev libcomedi-dev libsdl1.2-dev libgsl-dev \
  libqwt-qt5-dev libqt5opengl5-dev python3-pyqt5 liblog4cpp5-dev \
  libzmq3-dev python3-yaml python3-click python3-click-plugins
pybombs install gnuradio (crashes at 87% at Buiding stage)


I have no idea what i am doing. I installed gnuradio 3.7.# by
sudo apt-get update
sudo apt-get install gnuradio

I want the 3.8 version. Thanks

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