User Guide - Ubuntu

Setting passwords in the operating system
Operating system passwords Function
Root password Protects access to an operating system root-level account.
User password Protects access to an operating system user account.
Setting passwords in Setup Utility (BIOS) and Computer Setup
Password Type Function
Administrator password or BIOS administrator password*
●
Protects access to Setup Utility or Computer Setup.
●
After this password is set, it must be entered each time
you access Setup Utility or Computer Setup.
CAUTION: If you forget your administrator password, you
cannot access Setup Utility or Computer Setup.
NOTE: The administrator password can be used in place of
the power-on password.
NOTE: Your administrator password is not displayed as it
is set, entered, changed, or deleted.
NOTE: If you enter the power-on password at the first
password check before the “Press the ESC key for Startup
Menu” message is displayed, you must enter the
administrator password to access Setup Utility or Computer
Setup.
Power-on password*
●
Protects access to the computer contents.
●
After this password is set, it must be entered each time
you turn on or restart the computer, or exit Hibernation.
CAUTION: If you forget your power-on password, you
cannot turn on or restart the computer, or exit Hibernation.
NOTE: The administrator password can be used in place of
the power-on password.
NOTE: A power-on password is not displayed as it is set,
entered, changed, or deleted.
*For details about each of these passwords, refer to the following topics.
Managing an administrator password
To set, change, or delete this password, follow these steps:
1. Open Setup Utility or Computer Setup by turning on or restarting the computer. While the “Press
the ESC key for Startup Menu” message is displayed in the lower-left corner of the screen, press
esc. When the Startup Menu is displayed, press f10.
2. Select Security, and then follow the on-screen instructions.
Your changes take effect when the computer restarts.
36 Chapter 8 Securing your computer and information