ROOT INSTALLATION

Site: https://root.cern/

Download here: https://root.cern/releases/release-62000/ [Download source code]

Older versions: https://root.cern/install/all_releases/#version-6

UBUNTU Software requirements (<v22) : Copy and paste below lines in your terminal and hit enter

sudo apt-get install dpkg-dev cmake g++ gcc binutils libx11-dev libxpm-dev libxft-dev libxext-dev python libssl-dev gfortran libpcre3-dev xlibmesa-glu-dev libglew1.5-dev libftgl-dev libmysqlclient-dev libfftw3-dev libcfitsio-dev graphviz-dev libavahi-compat-libdnssd-dev libldap2-dev python-dev libxml2-dev libkrb5-dev libgsl0-dev qtwebengine5-dev

mkdir root [create directory where you need to install software say root]

tar root-6.20.00.tar ------------> Source code

cd root-6.20.00 [Enter in the main directory generated after untar]

mkdir rootbuild [This directory is inside the source directory i.e. root-6.20.XXXX]

cd rootbuild

cmake .. [Since we are inside the directory therefore we just need two dots after cmake]

cmake -Dall=On . -----> One can turn off if below standard C++17 cmake command is using. [Test it]

Optional with C++17 :- cmake -DCMAKE_CXX_STANDARD=17 . -------------> This is for compatible features with new Geant4 v11

cmake -DCMAKE_INSTALL_PREFIX=~/myphysics/ROOT_UPGRADED/root-6.20.00-install . [~/path to installation]

make -j4

make install

****You will find new folder inside the main folder with named root-6.20.00-install or the name as described.

****

To run root from anywhere

1. open new terminal

2. gedit .bashrc

3. modify it by adding lines anywhere in the text

source path/2/root/bin/thisroot.sh

alias root='root -l'

4. run .bashrc file via cmd :- source .bashrc

5. you are now ready to go and run root anywhere.

Thanks Dr. Canel Eke for noticing errors during installation of root20 on Ubuntu22.

Date: 09/06/2022