Table of Contents
Advertisement
9.4
Updating and Restoring of BIOS
AMI's AFUDOS utility allows you to update or restore the BIOS with a newer version or restore a corrupt
BIOS by using a floppy disk without having to install a new ROM chip.
BIOS Update
Download the compressed BIOS File from
bootable media like Floppy Disk or USB stick. Execute the batch file flash.bat to update the BIOS.
File
Purpose
BIOS.ROM
Actual BIOS image to be programmed into Flash ROM
AFUDOS.EXE
Phoenix DOS tool to program the Flash ROM.
Flash.bat
Batch File with necessary flash command. Execute this file to update the BIOS.
9.5
Preventing Problems When Updating or Restoring BIOS
Updating the BIOS represents a potential hazard. Power failures or fluctuations that may occur during
updating the Flash ROM can damage the BIOS code, making the system unbootable.
To prevent this potential hazard, many systems come with a boot-block Flash ROM. The boot-block
region contains a fail-safe recovery routine. If the boot-block code finds a corrupted BIOS (checksum
fails), it boots into the crisis recovery mode and loads a BIOS image from a crisis diskette (see above).
Additionally, the end user can insert an update key into the serial port (COM1 only) to force initiating
the recovery routine for the boot block.
Kontron User's Guide ETX®-CN8
K ontron EMD CustomerSection
H U
73
9 BIOS Operation
and unzip all files on a DOS
U H
Advertisement
Table of Contents
