Bios Recovery; Bios Security Features - DLoG IPC 7 Handbuch

Anhang F: BIOS

22.10. BIOS Recovery

The BIOS recovery scenario is recommended for situations when the normal flash
update fails and the user can no longer boot back to an OS to restore the system. The
code that handles BIOS recovery resides in a section of the flash referred to as "boot
block".
In order to make a BIOS recovery from a USB device (floppy, USB stick) the BIOS file
must be copied into the root directory of the storage device and renamed to
AMIBOOT.ROM. Then boot from the device.
The BIOS issues a series of 4 beeps that indicate that the system BIOS ROM file has
successfully been updated.
After that the system will automatically reset and reboot.
If the Boot Block of the BIOS is corrupted the recovery scenario as
desribed here will not be possible. In this situation the unit need to
be sent in for repair.

22.11. BIOS Security Features

The BIOS provides both a supervisor and user password. If you use both passwords, the
supervisor password must be set first. The system can be configured so that all users
must enter a password every time the system boots or when setup is executed.
The two passwords activate two different levels of security. If you select password
support you are prompted for a one to six character password. Type the password on the
keyboard. The password does not appear on the screen when typed.
The supervisor password (supervisor mode) gives unrestricted access to view and
change all the setup options. The user password (user mode) gives restricted access to
view and change setup options.
If only the supervisor password is set, pressing <Enter> at the password prompt of the
BIOS setup program allows the user restricted access to setup.
Setting the password check to 'Always' restricts who can boot the system. The password
prompt will be displayed before the system attempts to load the operating system. If only
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