disktab revision 1.2 
1#	$OpenBSD: disktab,v 1.2 2004/01/29 08:58:31 mickey Exp $
2
3# Disk geometry and partition layout tables.
4# Key:
5#	dt	controller type
6#	ty	type of disk (fixed, removeable, simulated)
7#	d[0-4]	drive-type-dependent parameters
8#	ns	#sectors/track
9#	nt	#tracks/cylinder
10#	nc	#cylinders/disk
11#	sc	#sectors/cylinder, ns*nt default
12#	su	#sectors/unit, sc*nc default
13#	se	sector size, DEV_BSIZE default
14#	rm	rpm, 3600 default
15#	sf	supports bad144-style bad sector forwarding
16#	sk	sector skew per track, default 0
17#	cs	sector skew per cylinder, default 0
18#	hs	headswitch time, default 0
19#	ts	one-cylinder seek time, default 0
20#	il	sector interleave (n:1), 1 default
21#	bs	boot block size, default BBSIZE
22#	sb	superblock size, default SBSIZE
23#	o[a-p]	partition offsets in sectors
24#	p[a-p]	partition sizes in sectors
25#	b[a-p]	partition block sizes in bytes
26#	f[a-p]	partition fragment sizes in bytes
27#	t[a-p]	partition types (filesystem, swap, etc)
28#
29# All partition sizes reserve space for bad sector tables.
30# (5 cylinders needed for maintenance + replacement sectors)
31#
32
33floppy288|3in|3.5in High Density Floppy, 2.88MB:\
34	:dt=floppy:ty=floppy:se#512:nt#2:rm#300:ns#36:nc#80:\
35	:pa#5760:oa#0:ba#4096:fa#512:ta=4.2BSD: \
36	:pb#5760:ob#0:\
37	:pc#5760:oc#0:
38
39floppy|floppy3|3in|3.5in High Density Floppy:\
40	:dt=floppy:ty=floppy:se#512:nt#2:rm#300:ns#18:nc#80:\
41	:pa#2880:oa#0:ba#4096:fa#512:ta=4.2BSD: \
42	:pb#2880:ob#0:\
43	:pc#2880:oc#0:
44
45floppy5|5in|5.25in High Density Floppy:\
46	:dt=floppy:ty=floppy:se#512:nt#2:rm#300:ns#15:nc#80:\
47	:pa#2400:oa#0:ba#4096:fa#512:ta=4.2BSD: \
48	:pb#2400:ob#0:bb#4096:fb#512:\
49	:pc#2400:oc#0:bc#4096:fc#512:
50
51rdroot|ramdiskroot|RAM-disk root FS image:\
52	:ty=ramdisk:se#512:nt#2:ns#128:nc#16:\
53	:pa#3510:oa#0:ta=4.2BSD:ba#4096:fa#512:\
54	:pb#0:ob#0:tb=swap:\
55	:pc#3510:oc#0:
56