4.1.1 Login to a shell prompt as root
Upon rebooting the system, you will be presented either the graphical login
screen or the character based login screen depending on your initial selection
of packages. For the sake of simplicity, if you are presented with the
graphical login screen, press Ctrl-Alt-F1 [
3] to gain the character based login screen.
Suppose your hostname is foo, the login prompt looks
like:
foo login:
Type root , press the Enter-key and type the password which you
selected during the install process. In the Debian system, following the Unix
tradition, the password is case sensitive. Then the system starts with the
greeting message and presents you with the root command prompt waiting for your
input. [
4]
foo login: root
Password:
Last login: Sun Oct 26 19:04:09 2003 on tty3
Linux foo 2.4.22-1-686 #6 Sat Oct 4 14:09:08 EST 2003 i686 GNU/Linux
Most of the programs included with the Debian GNU/Linux system are
freely redistributable; the exact distribution terms for each program
are described in the individual files in /usr/share/doc/*/copyright
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
root@foo:root#
You are ready to perform the system administration from this root command
prompt. This root account is also called superuser or privileged user. From
this account, you can do anything:
-
read, write, and remove any files on the system irrespective of their file
permissions
-
set file ownership and permission of any files on the system
-
set the password of any non-privileged users on the system
-
login to any accounts without their passwords
It is extremely bad idea to share the access to the root account by sharing the
password. Use of program such as sudo(8) is the good way to share
the administrative privileges.
Please note that it is considered a good Unix habit to login to the
non-privileged user account first even when you plan to perform administrative
activities. Use commands sudo, super, or su
-c to gain the limited root privileged when needed. See Working more safely – sudo,
Section 9.2.4. [
5]
