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- Newsgroups: comp.os.linux
- Path: sparky!uunet!mcsun!sun4nl!alchemy!ruunfs!hooft
- From: hooft@fys.ruu.nl (Rob Hooft)
- Subject: Re: Setfdprm and floppies > 1.44M ?
- Message-ID: <1992Jul22.072549.19648@fys.ruu.nl>
- Organization: Physics Department, University of Utrecht, The Netherlands
- References: <bjl.711465001@freyr>
- Date: Wed, 22 Jul 1992 07:25:49 GMT
- Lines: 88
-
- In <bjl.711465001@freyr> bjl@loki.pttrnl.nl (Ben Lippolt) writes:
-
- >I was playing around with the 'setfdprm' program and was wondering if
- >anyone has some values for '/etc/fdprm' for floppies with more than
- >18 sectors/track and 20 tracks?
-
- >So, can anyone fill in some of the question marks?
-
- >Ben Lippolt
-
- >PS. I know I'm a little optismistic here. I don't expect to get all
- >these numbers, but it would be nice to have 150-200K more on a floppy.
-
- Here is my `/etc/fdprm' file. Hope you like it.
- As it says in the comment-lines: many of the GAP parameters are guesswork,
- and I didn't test formatting for a single floppy.
-
- -----------------------------------------------------------------------
- # 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
-
- # - fdform18 floppies. (july 22, 1992)
- # - Many Gaps are guessed. Some of them will probably not work.
- # - Format gaps from fdform18.pas
- # - Formatting untested. Almost all reading untested!
- # - `Normal' configurations commented out.
- # - please send usefull additions/corrections to Rob Hooft
- # (hooft@hutruu54.bitnet) such that everybody will profit.
- # I will repost if there is any important correction.
- # - before the highest formats will be really useful interleaving
- # should be implemented in the formatting program. If somebody
- # is doing that, please look at sector-shifting too (see fdform18
- # source code and documentation).
-
- 160/360 320 8 1 40 0 0x30 0x02 0xDF 0x58
- 180/360 360 9 1 40 0 0x2A 0x02 0xDF 0x50
- 200/360 400 10 1 40 0 0x1A 0x02 0xDF 0x2E
- 205/360 410 10 1 41 0 0x1A 0x02 0xDF 0x2E
- 320/360 640 8 2 40 0 0x30 0x02 0xDF 0x58
- # 360/360 720 9 2 40 0 0x2A 0x02 0xDF 0x50
- # 360/720 720 9 2 40 1 0x2A 0x02 0xDF 0x50
- # 360/1200 720 9 2 40 1 0x23 0x01 0xDF 0x50
- 360/1440 720 9 2 40 1 0x2A 0x02 0xDF 0x50
- 400/360 800 10 2 40 0 0x1A 0x02 0xDF 0x2E
- 410/360 820 10 2 41 0 0x1A 0x02 0xDF 0x2E
- # 720/720 1440 9 2 80 0 0x2A 0x02 0xDF 0x50
- # 720/1200 1440 9 2 80 0 0x23 0x01 0xDF 0x50
- # 720/1440 1440 9 2 80 0 0x2A 0x02 0xDF 0x50
- 800/720 1600 10 2 80 0 0x1A 0x02 0xDF 0x2E
- 800/1200 1600 10 2 80 0 0x1A 0x01 0xDF 0x2E
- 800/1440 1600 10 2 80 0 0x1A 0x02 0xDF 0x2E
- 820/720 1640 10 2 82 0 0x1A 0x02 0xDF 0x2E
- 820/1200 1640 10 2 82 0 0x1A 0x01 0xDF 0x2E
- 820/1440 1640 10 2 82 0 0x1A 0x02 0xDF 0x2E
- #1200/1200 2400 15 2 80 0 0x1B 0x00 0xDF 0x54
- 1440/1200 2880 18 2 80 0 0x01 0x00 0xDF 0x02
- #1440/1440 2880 18 2 80 0 0x1B 0x00 0xCF 0x6C
- 1480/1200 2960 18 2 82 0 0x1B 0x00 0xCF 0x6C
- 1600/1440 3200 20 2 80 0 0x06 0x00 0xCF 0x2A
- 1640/1440 3280 20 2 82 0 0x06 0x00 0xCF 0x2A
- 1680/1440 3360 21 2 80 0 0x01 0x00 0xCF 0x0C
- 1720/1440 3440 21 2 82 0 0x01 0x00 0xCF 0x0C
- --
- Rob Hooft, Bijvoet Center for Biomolecular Research,
- Chemistry department University of Utrecht, the Netherlands
- hooft@hutruu54.bitnet hooft@chem.ruu.nl hooft@fys.ruu.nl hooft@cc.ruu.nl
-