60 Disk Drives and Files
MX2 Reference Guide E-EQ-MX2RG-L-ARC
Disk Drives and Files
The MX2 has the following drive structure:
Drive A is a read-only flash drive. The contents of this drive cannot be changed.
Drive B is a read-only flash drive. (Normal operation will not require updating of this drive.)
Drive C is a resident flash disk drive that is accessed with the FLASHDSK.SYS device driver.
You can use this drive to store applications and data.
Drive D is a RAM disk accessed with the VDISK.SYS device driver. This drive can be used to
store applications as well as data. However, you should take great care in selecting files for this
drive. As with any RAM drive, its contents will be lost if power is removed.
Additional drives are mapped to ATA flash PC cards or to network drives via radio frequency
(RF).
This organization provides an easy-to-use, extensible system that allows a high degree of
performance, usability, and customization. The following sections more fully describe the
contents and intended uses of each of the MX2’s drives.
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:
AUTOEXEC.BAT the first file in the startup sequence
CONFIG.SAF the first file in the safe-boot sequence
CONFIG.SYS the first file in the boot sequence
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. Both files chain to their respective counterparts on the B drive, as described in the
next section.
The CONFIG.SAF file is used in the safe-boot sequence.
REM **************************************
REM Initial CONFIG.SYS file for
REM starting the system.
REM **************************************
NEWFILE = B:\CONFIG.SYS
Figure 3-1 CONFIG.SYS File on Drive A
