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disktab ()
  • >> disktab (5) ( FreeBSD man: Форматы файлов )

  • BSD mandoc
     

    NAME

    
    
    disktab
    
     - disk description file
    
     
    

    SYNOPSIS

       #include <disklabel.h>
     

    DESCRIPTION

    Disktab is a simple database which describes disk geometries and disk partition characteristics. It is used to initialize the disk label on the disk. The format is patterned after the termcap(5) terminal data base. Entries in consist of a number of `:'-separated fields. The first field for each entry gives the names by which a disk's entry may be selected, separated by `|' characters. The last name given should be a long name fully identifying the disk.

    The optional fields for each entry are:

    ID    Type    Description
    "ty     str     Type of disk (e.g. removable, winchester)"
    "dt strType of controller (e.g."
    SMD , ESDI
    floppy)
    "ns     num     Number of sectors per track"
    "nt       num     Number of tracks per cylinder"
    "ncnumTotal number of cylinders on the disk"
    "scnumNumber of sectors per cylinder, ns*nt default"
    "sunumNumber of sectors per unit, sc*nc default"
    "senumSector size in bytes,"
    DEV_BSIZE default
    "sf     bool    Controller supports bad144-style bad sector forwarding"
    "rm    num     Rotation speed, rpm, 3600 default"
    "sknumSector skew per track, default 0"
    "csnumSector skew per cylinder, default 0"
    "hsnumHeadswitch time, usec, default 0"
    "tsnumOne-cylinder seek time, usec, default 0"
    "ilnumSector interleave (n:1), 1 default"
    "d[0-4]numDrive-type-dependent parameters"
    "bsnumBoot block size, default"
    BBSIZE
    "sbnumSuperblock size, default 0"
    "banumBlock size for partition `a' (bytes)"
    "bdnumBlock size for partition `d' (bytes)"
    "benumBlock size for partition `e' (bytes)"
    "bfnumBlock size for partition `f' (bytes)"
    "bgnumBlock size for partition `g' (bytes)"
    "bhnumBlock size for partition `h' (bytes)"
    "fanumFragment size for partition `a' (bytes)"
    "fdnumFragment size for partition `d' (bytes)"
    "fenumFragment size for partition `e' (bytes)"
    "ffnumFragment size for partition `f' (bytes)"
    "fgnumFragment size for partition `g' (bytes)"
    "fhnumFragment size for partition `h' (bytes)"
    "oanumOffset of partition `a' in sectors"
    "obnumOffset of partition `b' in sectors"
    "ocnumOffset of partition `c' in sectors"
    "odnumOffset of partition `d' in sectors"
    "oenumOffset of partition `e' in sectors"
    "ofnumOffset of partition `f' in sectors"
    "ognumOffset of partition `g' in sectors"
    "ohnumOffset of partition `h' in sectors"
    "panumSize of partition `a' in sectors"
    "pbnumSize of partition `b' in sectors"
    "pcnumSize of partition `c' in sectors"
    "pdnumSize of partition `d' in sectors"
    "penumSize of partition `e' in sectors"
    "pfnumSize of partition `f' in sectors"
    "pgnumSize of partition `g' in sectors"
    "phnumSize of partition `h' in sectors"
    "tastrPartition type of partition `a'"
    ( BSD 4.2 file system, swap, etc)
    "tb     str     Partition type of partition `b'"
    "tc   str     Partition type of partition `c'"
    "tdstrPartition type of partition `d'"
    "testrPartition type of partition `e'"
    "tfstrPartition type of partition `f'"
    "tgstrPartition type of partition `g'"
    "thstrPartition type of partition `h'"

     

    FILES

    /etc/disktab

     

    SEE ALSO

    getdiskbyname(3),
    bsdlabel(8), newfs(8)  

    HISTORY

    The description file appeared in BSD 4.2


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    FILES
    SEE ALSO
    HISTORY


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