mfsys(4) — Reliant UNIX 5.44c4

mfsys(4)                                                           mfsys(4)

NAME
     mfsys - file format

SYNOPSIS
     mfsys

DESCRIPTION
     The mfsys file contains configuration information for file system
     types that are to be included in the next system kernel to be built.
     It is included in the directory /etc/conf/cf.d, and includes a one-
     line description of each file system type. The mfsys file is coalesced
     from component files in the directory /etc/conf/mfsys.d. Each line
     contains the following whitespace-separated fields:

     1. name:  This field contains the internal name for the file system
        type (e.g. ufs, nfs.) This name is no more than 32 characters long.

     2. prefix:  The prefix in this field is the string prepended to the
        fstypsw handler functions defined for this file system type (e.g.
        s5, du). The prefix must be no more that 8 characters long.

     3. flags:  The flags field contains a hex number of the form "0xNN" to
        be used in populating the fsinfo data structure table entry for
        this file system type.

     4. notify flags:  The notify flags field contains a hex number of the
        form "0xNN" to be used in population the fsinfo data structure
        table entry for this file system type.

     5. function bitstring:  The function bitstring is a string of 28 0's
        and 1's. Each file system type potentially defines 28 functions to
        populate the fstypsw data structure table entry for itself. All
        file system types do not supply all the functions in this table,
        however, and this bitstring is used to indicate which of the func-
        tions are present and which are absent. A "1" in this string indi-
        cates that a function has been supplied, and a "0" indicates that a
        function has not been supplied. Successive characters in the string
        represent successive elements of the fstypsw data structure, with
        the first entry in this data structure represented by the rightmost
        character in the string.

SEE ALSO
     idbuild(1M), idinstall(1M), sfsys(4).












Page 1                       Reliant UNIX 5.44                Printed 11/98
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