First we must learn how to install linux

1] Graphical mode installation{DVD}
      2] Text mode installation{DVD}
      3] Kickstart method installation{iso,cd, or network}
      4] via Network Installation
      5] via FTP installation
      6] via http installation
      7] via USB installation

so any one method do practice your self,

y2k>next we see how many partitions required for os installation
        *
TWO PARTITION IS ENOUGH FOR LINUX INSTALLATION
1. /                           ................HERE PUT MAXIMUM SIZE
2.SWAP                .................MULTIPLY BY 2 WITH OUR RAM SIZE [EX:512*2=1024]