Copyright (c) 1983 Regents of the University of California.
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)disktab.5 6.1 (Berkeley) 05/15/85
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)disktab.5 6.1 (Berkeley) 05/15/85
DISKTAB 5 ""
C 5 NAME
disktab - disk description file
SYNOPSIS
#include <disktab.h> DESCRIPTION
Disktab is a simple date base which describes disk geometries and
disk partition characteristics. The format is patterned
after the
termcap (5) terminal data base. Entries in
disktab 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.
The following list indicates the normal values stored for each disk entry.
Name Type Description
ns num Number of sectors per track
nt num Number of tracks per cylinder
nc num Total number of cylinders on the disk
ba num Block size for partition `a' (bytes)
bd num Block size for partition `d' (bytes)
be num Block size for partition `e' (bytes)
bf num Block size for partition `f' (bytes)
bg num Block size for partition `g' (bytes)
bh num Block size for partition `h' (bytes)
fa num Fragment size for partition `a' (bytes)
fd num Fragment size for partition `d' (bytes)
fe num Fragment size for partition `e' (bytes)
ff num Fragment size for partition `f' (bytes)
fg num Fragment size for partition `g' (bytes)
fh num Fragment size for partition `h' (bytes)
pa num Size of partition `a' in sectors
pb num Size of partition `b' in sectors
pc num Size of partition `c' in sectors
pd num Size of partition `d' in sectors
pe num Size of partition `e' in sectors
pf num Size of partition `f' in sectors
pg num Size of partition `g' in sectors
ph num Size of partition `h' in sectors
se num Sector size in bytes
ty str Type of disk (e.g. removable, winchester)
Disktab entries may be automatically generated with the diskpart program.
FILES
/etc/disktab
"SEE ALSO"
newfs(8), diskpart(8)
BUGS
This file shouldn't exist, the information should be
stored on each disk pack.