Disk Drives and Files 3-3
MX2A137REFGD Revision A MX2 Reference Guide
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