User`s guide

ROM-DOS Commands 189
E-EQ-MX1RG-D MX1 Reference Guide
SYS.COM
External Command
The SYS command copies the ROM-DOS system files ROM-DOS.SYS and COMMAND.COM
from the disk in the default drive to the disk in the specified drive. The file ROM-DOS.SYS is
renamed and stored on the disk as files IBMBIO.COM and IBMDOS.COM, which are stored as
hidden files.
Syntax
SYS drive: [/options]
Remarks
Use the SYS command to transfer the ROM-DOS system files to a floppy disk or hard disk. The
disk can be a formatted blank disk or can contain files; it is not necessary for the system files to be
the first files on the disk. The only requirement is that there is enough contiguous free space on
the disk for the new system files to be placed. If the disk already contains system files, installing
the new system files deletes the existing files.
The command processor, COMMAND.COM, is also transferred to the disk and does not need to
be copied into the same contiguous space as the system files.
You can run SYS three different ways. The first is to boot and run your system with ROM-DOS.
When you run the SYS command this way, SYS copies the ROM-DOS system files and
COMMAND.COM from the root directory of the default/current disk drive.
The second method is to run SYS from the root directory of a disk drive that has been previously
prepared with the SYS command, but isn’t booted and running. For example, you can run SYS
from a bootable floppy disk to copy the files to the hard disk without actually booting from the
floppy disk itself.
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:.