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Revision 1.13, Sun Apr 22 10:19:15 2012 UTC (7 years, 11 months ago) by wiz
Branch: MAIN
CVS Tags: yamt-pagecache-base9, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, tls-maxphys-base, tls-maxphys, tls-earlyentropy-base, tls-earlyentropy, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, phil-wifi-base, phil-wifi-20191119, phil-wifi-20190609, phil-wifi, pgoyette-localcount-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, pgoyette-localcount, pgoyette-compat-merge-20190127, pgoyette-compat-base, pgoyette-compat-20190127, pgoyette-compat-20190118, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, perseant-stdc-iso10646-base, perseant-stdc-iso10646, netbsd-9-base, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, netbsd-9, netbsd-8-base, netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-2-RELEASE, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7, matt-nb8-mediatek-base, matt-nb8-mediatek, localcount-20160914, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan, agc-symver-base, agc-symver, HEAD
Changes since 1.12: +6 -7 lines

Sort SEE ALSO; new sentence, new line.

.\"	$NetBSD: disktab.5,v 1.13 2012/04/22 10:19:15 wiz Exp $
.\"
.\" Copyright (c) 1983, 1991, 1993
.\"	The Regents of the University of California.  All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
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.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
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.\" 3. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
.\"    without specific prior written permission.
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\"
.\"     @(#)disktab.5	8.1 (Berkeley) 6/5/93
.\"
.Dd April 5, 2012
.Dt DISKTAB 5
.Os
.Sh NAME
.Nm disktab
.Nd disk description file
.Sh SYNOPSIS
.In disktab.h
.Sh DESCRIPTION
.Nm
is a simple database which describes disk geometries and
disk partition characteristics.
It is used
.\"by the formatter(\c
.\"IR.Xr format 8 )
.\"to determine how to format the disk, and
to initialize the disk label on the disk.
The format is described in
.Xr capfile 5 .
Entries in
.Nm
consist of a number of `:' separated fields.
The first entry for each disk gives the names which are known for
the disk, separated by `|' characters.
The last name given should be a long name fully identifying the disk.
.Pp
The following list indicates the normal values
stored for each disk entry.
.Bl -column "indent" "boolx"
.It Sy Name	Type	Description
.It "\&ty	str	Type of disk (e.g. removable, winchester)"
.It "\&dt	str	Type of controller (e.g."
.Tn SMD , ESDI ,
floppy)
.It "\&ns	num	Number of sectors per track"
.It "\&nt	num	Number of tracks per cylinder"
.It "\&nc	num	Total number of cylinders on the disk"
.It "\&sc	num	Number of sectors per cylinder, ns*nt default"
.It "\&su	num	Number of sectors per unit, sc*nc default"
.It "\&se	num	Sector size in bytes,"
.Dv DEV_BSIZE
default
.It "\&sf	bool	Controller supports bad144-style bad sector forwarding"
.It "\&rm	num	Rotation speed, rpm, 3600 default"
.It "\&sk	num	Sector skew per track, default 0"
.It "\&cs	num	Sector skew per cylinder, default 0"
.It "\&hs	num	Headswitch time, usec, default 0"
.It "\&ts	num	One-cylinder seek time, usec, default 0"
.It "\&il	num	Sector interleave (n:1), 1 default"
.It "\&d[0-4]	num	Drive-type-dependent parameters"
.It "\&bs	num	Boot block size, default"
.Dv BBSIZE
.It "\&sb	num	Superblock size, default"
.Dv SBSIZE
.It "\&ba	num	Block size for partition `a' (bytes)"
.It "\&bd	num	Block size for partition `d' (bytes)"
.It "\&be	num	Block size for partition `e' (bytes)"
.It "\&bf	num	Block size for partition `f' (bytes)"
.It "\&bg	num	Block size for partition `g' (bytes)"
.It "\&bh	num	Block size for partition `h' (bytes)"
.It "\&fa	num	Fragment size for partition `a' (bytes)"
.It "\&fd	num	Fragment size for partition `d' (bytes)"
.It "\&fe	num	Fragment size for partition `e' (bytes)"
.It "\&ff	num	Fragment size for partition `f' (bytes)"
.It "\&fg	num	Fragment size for partition `g' (bytes)"
.It "\&fh	num	Fragment size for partition `h' (bytes)"
.It "\&oa	num	Offset of partition `a' in sectors"
.It "\&ob	num	Offset of partition `b' in sectors"
.It "\&oc	num	Offset of partition `c' in sectors"
.It "\&od	num	Offset of partition `d' in sectors"
.It "\&oe	num	Offset of partition `e' in sectors"
.It "\&of	num	Offset of partition `f' in sectors"
.It "\&og	num	Offset of partition `g' in sectors"
.It "\&oh	num	Offset of partition `h' in sectors"
.It "\&pa	num	Size of partition `a' in sectors"
.It "\&pb	num	Size of partition `b' in sectors"
.It "\&pc	num	Size of partition `c' in sectors"
.It "\&pd	num	Size of partition `d' in sectors"
.It "\&pe	num	Size of partition `e' in sectors"
.It "\&pf	num	Size of partition `f' in sectors"
.It "\&pg	num	Size of partition `g' in sectors"
.It "\&ph	num	Size of partition `h' in sectors"
.It "\&ta	str	Partition type of partition `a'"
.Pf ( Bx 4.2
filesystem, swap, etc)
.It "\&tb	str	Partition type of partition `b'"
.It "\&tc	str	Partition type of partition `c'"
.It "\&td	str	Partition type of partition `d'"
.It "\&te	str	Partition type of partition `e'"
.It "\&tf	str	Partition type of partition `f'"
.It "\&tg	str	Partition type of partition `g'"
.It "\&th	str	Partition type of partition `h'"
.El
.Sh FILES
.Bl -tag -width /etc/disktab -compact
.It Pa /etc/disktab
.El
.Sh SEE ALSO
.Xr getdiskbyname 3 ,
.Xr capfile 5 ,
.Xr disklabel 5 ,
.Xr disklabel 8 ,
.Xr newfs 8
.Sh HISTORY
The
.Nm
description file appeared in
.Bx 4.2 .