To install Linux, you follow a simple, step-by-step procedure that has three main phases:
Installing the operating system kernel and base system
Configuring the new Linux system
Installing applications
WARNING: Although the Linux installation procedure is generally troublefree, errors or malfunctions that occur during the installation of an operating system can result in loss of data. You should not begin the installation procedure until you have backed up all data on your system and determined that your backup is error-free.
3.1.1 The Installation Program User Interface
Like other modern Linux distributions, Debian GNU/Linux includes a screen-based install program that simplifies the installation and initial configuration of Linux. However, the install program works somewhat differently than a typical Microsoft Windows application. For instance, it does not support use of a mouse or other pointing device; all input is via the keyboard. So that you can make effective use of the install program, the next three subsections describe the user-interface controls used by the install program, present the special keystrokes recognized by the install program, and explain the use of Linux's virtual consoles.
3.1.1.1 User-interface controls
Figure 3.1 shows a typical screen displayed by the install program. This screen includes the following controls:
A main window
The install program runs in a full screen window. The top line of the window displays the name of the current installation step. In Figure 3.1, the current step is "Select CD Interface Type." You cannot minimize or change the size of the install program's main window.
The cursor
Like Windows programs, the installation program has a cursor on screen. Unlike Windows, the cursor movement and cursor actions are controlled by the keyboard, rather than by the mouse. The location of the cursor is called the input focus. At any time,