Usage of the installer

The installer first lets you choose the language to use during installation and
select your keyboard layout, then allows you to type commands.

The main commands are (do not type the quotes):
'doc' to read the documentation (which you are currently doing)
'auto' to start an automatic installation
'setup' to start an installation in manual mode

You read the screen and type commands in a "virtual terminal". The installer
includes several virtual terminals sharing the same physical keyboard and
screen, that can be used in parallel.

The installer starts in the virtual terminal 1 named tty1 but you can switch
to another one. For instance you can switch to tty2 by pressing
Alt-F2 then Enter to activate it and later go back to tty2 by pressing
Alt-F1, without erasing information displayed in both terminals.
Alt-F1 means: press and hold the Alt key then press the F1 key.

This can be useful to continue reading the documentation during installation:
for instance you can switch to tty2 to begin installation, switch to tty1 to
continue reading the documentation, then switch to tty1 again to proceed to
the next installation step.

This can also be used to consult the glossary while reading other documents.

The fourth virtual terminal or tty4 displays messages that provide information
useful for debugging, otherwise it is not used.

The installer has several modes of interaction with you, the user:
1) You type commands at the prompt and read their output.
2) The installer asks a question, you type the answer and confirm it by
pressing Enter.
3) The installer displays a menu of choices or options: you select one of them
using the up and down arrow keys, then confirm your choice by pressing Enter,
or cancel by pressing Escape.
4) The installer displays information in a pager, as it is doing now.
Use arrow keys to read the next or previous line, press space to display the
next page, Q to stop reading the document.