At the request of readers:

How to set root password?

sudo passwd root

Enter your password … then twice enter a new password for root user

How to switch to superuser root mode?

su

and enter the superuser password

How to work with .rar archives?

Install support for different archive formats with the command:

apt-get install unace rar unrar zip unzip p7zip-full p7zip-rar sharutils aish uudeview mpack lha arj cabextract file-roller

How to make X-Server not loaded immediately?

In the file /etc/inittab change 5 to 3

id:5:initdefault:
id:3:initdefault: