вопрос о /etc/fdprm и высокой плотности.

Люди подскажите что вписать в /etc/fdprm
чтобы назначить dev/fd0 ёмкость от 1720K до 2000K.
Вот мой /etc/fdprm:
=====================================================================
# /etc/fdprm - floppy disk parameter table

# Common disk formats. Names are of the form
# actual media capacity/maximum drive capacity
# (Note: although 5.25" HD drives can format disks at 1.44M, they're listed
# as 1200 because that's the common maximum size.)

# size sec/t hds trk stre gap rate spec1 fmt_gap
360/360 720 9 2 40 0 0x2A 0x02 0xDF 0x50
1200/1200 2400 15 2 80 0 0x1B 0x00 0xDF 0x54
360/720 720 9 2 40 1 0x2A 0x02 0xDF 0x50
720/720 1440 9 2 80 0 0x2A 0x02 0xDF 0x50
720/1440 1440 9 2 80 0 0x2A 0x02 0xDF 0x50
360/1200 720 9 2 40 1 0x23 0x01 0xDF 0x50
720/1200 1440 9 2 80 0 0x23 0x01 0xDF 0x50
1440/1440 2880 18 2 80 0 0x1B 0x00 0xCF 0x6C

# Non-standard disk formats:

# BEWARE: They're incomplete and possibly incorrect. The only reason why
# they are in this file is to show how such formats are added.

1440/1200 2880 18 2 80 0 ???? ???? ???? ???? # ?????
1680/1440 3360 21 2 80 0 0x0C 0x00 0xCF 0x6C # ?????

# Add user-specific formats here
cbm1581 1600 10 2 80 2 0x2A 0x02 0xDF 0x2E
800/720 1600 10 2 80 0 0x2A 0x02 0xDF 0x2E
=====================================================================