Some embedded systems (or retired commercial firewalls) do not have
keyboard and VGA ports, but are fully controlled via the serial ports. For
the most part, things work exactly the same. The differences are below...
You will need a terminal program. Hyperterm on Windows is the old
classic. I have used gtkterm on Linux with no complaints.
You may need a "null modem" or "null modem cable" to connect to your
You will need to configure the BIOS from the serial port. At this point,
SmallWall is not running, so the connection speed is totally up to the BIOS.
Yes, you can install the serial version on a standard PC with a serial
port. But that will not give you serial access to the BIOS, nor will it
bypass the check for a keyboard by the BIOS on boot.
Terminal speed can vary based on the hardware it is running on. Most
times, it is the same as what the BIOS uses, but in some cases that
information is not passed correctly. Try;
You can change from standard to serial and back again. But the system
will alert that you are uploading a different type. Rename you image to
the filename it expects to work around this.