Epson Apex 20020 - Manual (Page 220)

The screen first displays disk space information and then
displays the following message:
Reading source file(s)...
SELECT copies the rest of the files from the Startup
diskette to the hard disk. When all the files are copied, the
A>
prompt reappears. The partition on the hard disk is
now formatted.
Note
The SELECT procedure described above copies all the files
from your Startup diskette to a directory it created on drive
C named \DOS. This enables you to start MS-DOS from
the hard disk. However, you should copy all the MS-DOS
files to your hard disk as described below. So Copying the
Remaining Files to the Hard Disk.
Formatting the Extended Partition
Follow this procedure to format the extended partition:
1. Insert the working copy of your MS-DOS Startup diskette
in drive A (if it is not already there).
2. At the A> prompt, type the following and press
Enter:
FORMAT D:/V
3. The screen displays this message and prompt:
WARNING, ALL DATA ON NON-REMOVABLE
DISK DRIVE D: WILL BE LOST!
Proceed with Format (Y/N)?