Epson 10020 - Manual (Page 211)

Formatting the MS-DOS Partition
Once you have created the MS-DOS partition, you must
format it for MS-DOS. Use the MS-DOS SELECT command
to format the new partition, drive C. SELECT automatically
does the following:
Formats the partition
Labels the partition
Copies the MS-DOS system files to the hard disk.
After you have done this, MS-DOS boots automatically from
this partition on the hard disk every time you turn on or reset
your computer (as long as there is no diskette in drive A).
Follow these steps to format the new partition:
1. Insert the working copy of your MS-DOS Startup diskette
in drive A (if it is not there already), and turn on the
computer if necessary.
2. At the
A
> prompt, type the following and press Enter:
SELECT A: C:\DOS 001 US
F-4 Preparing a Hard Disk for Use