Avery Dennison 6037 Rev. AA 3/04 Programmer Manual - Manual (Page 182)

5-62 Utility Descriptions
The third method uses the file ROM-DOS.SYS, the equivalent of the
hidden system files IBMBIO.COM and IBMDOS.COM. ROM-DOS.SYS
should be present in the same directory with COMMAND.COM and
SYS.COM. These three files can be placed in the root directory or
subdirectory on a floppy disk (that need not be booted or bootable), or in
a subdirectory on the hard drive. Run the SYS command from the
directory where the files reside to transfer the system files to the
destination drive.
Options
The /C option prevents confirmation before transferring system files.
The /H option shows the newly transferred system files on the destination
disk.
The /] option prevents display of the sign-on message.
Example
SYS B:
Copies the ROM-DOS system files to drive B:.