1# $OpenBSD: disktab,v 1.5 2004/02/27 16:53:24 deraadt 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#3584:oa#0:ta=4.2BSD:ba#4096:fa#512:\
54 :pb#0:ob#0:tb=swap:\
55 :pc#3584:oc#0: