The basic steps to install Ubuntu Server Edition from CD or USB stick are the same for installing any operating system. Unlike the desktop version, Ubuntu Server does not include a graphical installation program. Instead the Server Edition uses a console menu-based process.
1.) First, download and burn the ISO file.
2.) Bun the ISO to a CD / DVE and Boot the system from the CD-ROM drive.
3.) At the boot prompt you will be asked to select the language
4.) Select 'basic server install'.
5.) Enter appropriate options for language, keyboard layout, network configuration, hostname and timezone.
6.) You can then choose from several options to configure the hard drive layout.
7.) The Ubuntu base system is then installed.