User`s manual

Chapter 7: BIOS

7-29

Boot Sector Recovery from an IDE CD-ROM

This process is almost identical to the process of Boot Sector Recovery from a USB

device, except that the BIOS image ﬁ le is loaded from a CD-ROM. Use a CD-R or

CD-RW drive to burn a CD with the BIOS image ﬁ le in it, and name the ﬁ le "SUPER.

ROM" for the recovery process to load the ﬁ le.

Boot Sector Recovery from a Serial Port ("Serial Flash")

This process, also known as "Serial Flash," allows the user to use a serial port

to load a BIOS image for Boot Sector recovery. This feature is usually used for

embedded systems that rely on a serial port for remote access and debugging.

Requirements

In order to use Serial Flash for Boot Sector Recovery, you will need to meet the

following requirements.

• The "Target system," the system that needs BIOS updates, must have a serial

port and "Serial Flash" support embedded in the BIOS image ﬁ le.

• The "Host system" should also have a serial port and a terminal program that

supports XModem Transfer protocol (Hyper Terminal for the Windows operating

systems, and minicom for Linux/FreeSBD, etc.).

• A Null_modem serial cable

How to use Serial Flash for Boot Sector Recovery

1. Connect a Null_modem serial cable between the target system and the host

system that runs the terminal program.

2. Make sure that the new BIOS Image ﬁ le is accessible for the host system.

3. Start the terminal program on the host system and create a new connection.

Use the following communication parameters for the new connection.

• Bits per second: 115200 bits/sec.

• Data Bits: 8

• Parity: None

• Stop Bit: 1

• Flow Control: None