Binary Distribution (the simplest approach)
- download the compressed file from ROOT's official site (choose the one for your OS, e.g ubuntu16)
- extract the file to some path, e.g.
/home/tom/softwares/root-6-10 - add the following line to your start-up script (
~/.bashrc)
source <path-to-where-you-extract-the-files>/bin/thisroot.sh
Open a new terminal/console, enter root and enjoy the advanced calculator ROOT software.
Build ROOT from source code
it is not recommended to build and install ROOT from source code unless: + your OS is not listed in pre-compiled binary distributions + you want to tweak the build options for some reason.
- Install required libraries for ROOT. Check out this root build guide.
NOTE: if you've already installed GEANT4 following the previous guide, you can skip this step.
- Use the following commands to build and install
ROOT. The instructions use/softwares/rootfor both source files and binary files. You should change these paths to fit your directory management.
# go to target path and make a new directory for ROOT
cd /softwares
mkdir root
cd root
# download the newest ROOT source code from cern (6.10/08)
# you can also download via Web Browser
wget https://root.cern.ch/download/root_v6.10.08.source.tar.gz
tar zxvf root_v6.10.08.source.tar.gz
# move the compressed source code to /tmp (will be deleted next reboot)
# mv root_v6.10.08.source.tar.gz /tmp
# prepare directory for built binary files
mkdir root-6-install
mkdir root-6-build
cd root-6-build
# configure the package and build
# -Dgdml=ON -Dminuit2=ON -Droofit=ON are some frequently used build options
cmake -DCMAKE_INSTALL_PREFIX=../root-6-install -Dgdml=ON -Dminuit2=ON -Droofit=ON ../root-6.10.08
[check everything looks okay]
make -j2 # speed up compilation with -jN
make install # will install the binary files to your `CMAKE_INSTALL_PREFIX`
- add to environment (edit ~/.bashrc)
source /softwares/root/root-6-install/bin/thisroot.sh