visudo &

Add the bold lines
Defaults        env_reset

Cmnd_Alias SHUTDOWN_CMDS = /sbin/shutdown, /sbin/halt, /sbin/reboot, /sbin/poweroff

root    ALL=(ALL) ALL

posted by citadel
The ROOT system is an object-oriented Data Analysis Framework.

OS: Ubuntu 8.04 / RHEL 5.3
GCC : gcc version 4.2.4 (Ubuntu 4.2.4-1ubuntu3) / gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)

Some useful reference  is

1. Check the web site of ROOT system
  and decide one version that I want to install.

2. For example, v5-22-00.

  cd $HOME/programs/
  svn co root.5.22

  root.5.22 is a local directory name and will be created by svn.

cd $HOME/programs

Since I want to use a general directory name for ROOT system, thus
I create a symbolic link. Thus, my ROOT directory is
$HOME/programs/root/. N.B. if the file system is a fat32, symbolic links
cannot be created.

ln -s root.5.22 root

ln -s root.5.26a root

4. When I install a fresh ROOT system on my Linux, make sure to install proper packages by using.. 

ubuntu 8.04

apt-get install libjpeg62-dev libtiff4-dev  libxml2-dev libssl-dev libgnutls-dev libgmp3-dev libxmu-dev libpng12-dev libldap2-dev libkrb5-dev freeglut3-dev libxmu-dev fftw3 fftw3-dev  python-dev   libmysqlclient15-dev libgif-dev libungif4-dev libiodbc2 libiodbc2-dev

Debian 6 squeeze
apt-get install  comerr-dev freeglut3-dev krb5-multidev libfftw3-dev libgif-dev \
  libgl1-mesa-dev libglu1-mesa-dev libgmp3-dev libgmpxx4ldbl libiodbc2\
  libiodbc2-dev libkrb5-dev libldap2-dev libmysqlclient-dev libssl-dev\
  libtiff4-dev libtiffxx0c2 libxmu-dev libxmu-headers libxt-dev\
  mesa-common-dev libxpm-dev libpq-dev  libxft2 libxft-dev libgsl0-dev

5. set or change ROOTSYS to the your `root' directory:
5.1 First installation,

 export ROOTSYS=$HOME/softwares/root

 setenv ROOTSYS $HOME/softwares/root

   GOTO 6.

5.2 Update or new version
    5.2.1 Deactivate other export lines of ROOT system in ".bash_export" or ".bashrc" file
    # ROOT path configuration
    #    export ROOTSYS=$HOME/programs/root
    #    export PATH=$ROOTSYS/bin:$PATH

    5.2.2 Restart a xterm, and go to $HOME/programs/root
    5.2.3 Check the the ROOT path is empty by echo $ROOTSYS

    GOTO 6.

./configure linux --enable-minuit2 --enable-roofit --enable-table --enable-gdml

./configure linux --enable-minuit2 --enable-roofit --enable-table --enable-gdml --enable-pgsql --enable-mysql


./configure linuxx8664gcc  --enable-mysql --enable-roofit --enable-table --enable-gdml --enable-minuit2

more ouput


7.1 First installation,
   Add the following paths in ".bash_export" or ".bashrc" file
     export ROOTSYS=$HOME/programs/root/
     export PATH=$ROOTSYS/bin:$PATH

Add the following paths in ".tcshrc" file
setenv HOME_PROGRAMS ${HOME}/programs
setenv ROOTSYS /opt/root
setenv PATH ${ROOTSYS}/bin:${PATH}

7.2 Update or new version
    7.2.1 Set ROOTSYS in current xterm
    7.2.2 Configure and make
    7.2.3 add the new ROOTSYS in bashrc or tcshrc

    Open a new xterm, type root

update revision
  • cd $HOME/programs/root.5.22
  • svn up
  • cd $HOME/programs/root
  • ./configure linux --enable-minuit2 --enable-roofit --enable-table --enable-gdml
  • make

svn info


On 64 bit machine, I failed to compile with the following message :

/usr/lib64/libgslcblas.a: could not read symbols: Bad value

Then rerun the following command

./configure linuxx8664gcc  --enable-roofit --enable-table --enable-gdml --enable-minuit2 --enable-gsl-shared



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posted by citadel

apt-get install bchunk

Usage: bchunk [-v] [-r] [-p (PSX)] [-w (wav)] [-s (swabaudio)]
         <image.bin> <image.cue> <basename>

Example: bchunk foo.bin foo.cue foo

  -v  Verbose mode
  -r  Raw mode for MODE2/2352: write all 2352 bytes from offset 0 (VCD/MPEG)
  -p  PSX mode for MODE2/2352: write 2336 bytes from offset 24
      (default MODE2/2352 mode writes 2048 bytes from offset 24)
  -w  Output audio files in WAV format
  -s  swabaudio: swap byte order in audio tracks


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posted by citadel