Falcon DOS Portable Data Terminals, Advanced User'S Manual, Page: 95 / 184

Disk Drives and Files
Advanced User’s Guide
5-3
Drive A
Drive
A
is a disk image that is located in flash along with the BIOS and ROM-
DOS. A read-only drive, it is intended to remain secure throughout the life of
the unit. Drive
A
contains the following files:
z autoexec.bat
, the first file in the startup sequence
z
command.com
, the DOS shell
z config.saf
, the first file in the safe-boot sequence
z
config.sys
, the first file in the boot sequence
z rev.com
, the utility that reports the firmware revision
The
config.sys
and
autoexec.bat
files contain only basic commands
that the unit needs to run correctly (refer to
Figure 5-1
and
Figure 5-2
). Both
files chain to their respective counterparts on the
B
drive, as described in the
next section.
Figure 5-1: Config.sys File on Drive A
Figure 5-2: Autoexec.bat File on Drive A
The
config.saf
file (refer to
Figure 5-3
) is used in the safe-boot sequence.
(For more information about the
config.saf
file, refer to
page 5-5
. For
information about the safe boot, refer to
page 7-4
.)
Figure 5-3: Config.saf File on Drive A
REM ************************************************
REM Initial CONFIG.SYS file for starting the system.
REM ************************************************
NEWFILE = B:\CONFIG.SYS
@echo off
REM **************************************************
REM Initial AUTOEXEC.BAT file for starting the system.
REM **************************************************
VER
PATH=A:\
B:\AUTOEXEC.BAT
REM *********************************
REM Initial CONFIG.SYS for safe boot.
REM *********************************
NEWFILE = B:\CONFIG.SAF
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