projects / unix-history / blame
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1 | .\" Copyright (c) 1983 Regents of the University of California. |
| 2 | .\" All rights reserved. The Berkeley software License Agreement | |
| 3 | .\" specifies the terms and conditions for redistribution. | |
| 4 | .\" | |
| d46aa4b8 | 5 | .\" @(#)disktab.5 6.4 (Berkeley) %G% |
| fe259142 | 6 | .\" |
| 5b8e9484 | 7 | .TH DISKTAB 5 "" |
| fe259142 KM |
8 | .UC 5 |
| 9 | .SH NAME | |
| 10 | disktab \- disk description file | |
| 11 | .SH SYNOPSIS | |
| 12 | .B #include <disktab.h> | |
| 13 | .SH DESCRIPTION | |
| 14 | .I Disktab | |
| 15 | is a simple date base which describes disk geometries and | |
| 16 | disk partition characteristics. The format is patterned | |
| 17 | after the | |
| 18 | .IR termcap (5) | |
| 19 | terminal data base. Entries in | |
| 20 | .I disktab | |
| 21 | consist of a number of `:' separated fields. The | |
| 22 | first entry for each disk gives the names which are | |
| 23 | known for the disk, separated by `|' characters. The | |
| 24 | last name given should be a long name fully identifying | |
| 25 | the disk. | |
| 26 | .PP | |
| 27 | The following list indicates the normal values | |
| 28 | stored for each disk entry. | |
| 29 | .nf | |
| 30 | ||
| 31 | .ta \w'Name 'u +\w'Type 'u | |
| 32 | \fBName Type Description\fP | |
| 33 | ns num Number of sectors per track | |
| 34 | nt num Number of tracks per cylinder | |
| 35 | nc num Total number of cylinders on the disk | |
| 36 | ba num Block size for partition `a' (bytes) | |
| 37 | bd num Block size for partition `d' (bytes) | |
| 38 | be num Block size for partition `e' (bytes) | |
| 39 | bf num Block size for partition `f' (bytes) | |
| 40 | bg num Block size for partition `g' (bytes) | |
| 41 | bh num Block size for partition `h' (bytes) | |
| 42 | fa num Fragment size for partition `a' (bytes) | |
| 43 | fd num Fragment size for partition `d' (bytes) | |
| 44 | fe num Fragment size for partition `e' (bytes) | |
| 45 | ff num Fragment size for partition `f' (bytes) | |
| 46 | fg num Fragment size for partition `g' (bytes) | |
| 47 | fh num Fragment size for partition `h' (bytes) | |
| 48 | pa num Size of partition `a' in sectors | |
| 49 | pb num Size of partition `b' in sectors | |
| 50 | pc num Size of partition `c' in sectors | |
| 51 | pd num Size of partition `d' in sectors | |
| 52 | pe num Size of partition `e' in sectors | |
| 53 | pf num Size of partition `f' in sectors | |
| 54 | pg num Size of partition `g' in sectors | |
| 55 | ph num Size of partition `h' in sectors | |
| 56 | se num Sector size in bytes | |
| 32575477 MK |
57 | sf bool supports bad144-style bad sector forwarding |
| 58 | so bool partition offsets in sectors | |
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59 | ty str Type of disk (e.g. removable, winchester) |
| 60 | .fi | |
| 61 | .PP | |
| 62 | .I Disktab | |
| 63 | entries may be automatically generated with the | |
| 64 | .I diskpart | |
| 65 | program. | |
| 66 | .SH FILES | |
| 67 | /etc/disktab | |
| 68 | .SH "SEE ALSO" | |
| d46aa4b8 | 69 | newfs(8), diskpart(8), getdiskbyname(3) |
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70 | .SH BUGS |
| 71 | This file shouldn't exist, the information should be | |
| 72 | stored on each disk pack. |