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NAME

       mke2fs.conf - Configuration file for mke2fs

DESCRIPTION

       mke2fs.conf  is  the configuration file for mke2fs(8).  It controls the
       default parameters used by mke2fs(8) when it is creating ext2  or  ext3
       filesystems.

       The  mke2fs.conf  file uses an INI-style format.  Stanzas, or top-level
       sections, are delimited by square braces: [ ].   Within  each  section,
       each  line  defines  a  relation, which assigns tags to values, or to a
       subsection,  which  contains  further  relations  or  subsections.   An
       example of the INI-style format used by this configuration file follows
       below:

            [section1]
                 tag1 = value_a
                 tag1 = value_b
                 tag2 = value_c

            [section 2]
                 tag3 = {
                      subtag1 = subtag_value_a
                      subtag1 = subtag_value_b
                      subtag2 = subtag_value_c
                 }
                 tag1 = value_d
                 tag2 = value_e
            }

       Comments are delimited by a semicolon (’;’) or a hash  (’#’)  character
       at  the beginning of the comment, and are terminated by the end of line
       character.

       Tags and values must be quoted using  double  quotes  if  they  contain
       spaces.  Within a quoted string, the standard backslash interpretations
       apply: "\n" (for the newline character), "\t" (for the tab  character),
       "\b"  (for  the  backspace  character),  and  "\\"  (for  the backslash
       character).

       The following stanzas are used in the mke2fs.conf file.  They  will  be
       described in more detail in future sections of this document.

       [defaults]
              Contains  relations  which define the default parameters used by
              mke2fs(8).  In general, these defaults may be  overridden  by  a
              definition  in the fs_types stanza, or by an command-line option
              provided by the user.

       [fs_types]
              Contains relations which define defaults that should be used for
              specific filesystem types.  The filesystem type can be specified
              explicitly using the -T option to mke2fs(8).  If  no  filesystem
              type is specified, mke2fs(8) will use the filesystem type floppy
              if the filesystem size is less than or equal to 3 megabytes.  If
              the  filesystem size is greater than 3 but less than or equal to
              512  megabytes,  mke2fs(8)  will  use  the   filesystem   small.
              Otherwise,  mke2fs(8)  will  use  the  default  filesystem  type
              default.

THE [defaults] STANZA

       The following relations are defined in the [defaults] stanza.

       base_features
              This relation  specifies  the  filesystems  features  which  are
              enabled  in  newly created filesystems.  It may be overridden by
              the base_features relation found in the filesystem-type-specific
              subsection of the [fs_types] stanza.

       default_features
              This  relation  specifies a set of features that should be added
              or removed to the features listed in the base_features relation.
              It may be overridden by the filesystem-specific default_features
              in the filesystem-type subsection of [fs_types], and by  the  -O
              command-line option to mke2fs(8).

       blocksize
              This  relation  specifies the default blocksize if the user does
              not specify a blocksize on the command line, and the filesystem-
              type specific section of the configuration file does not specify
              a blocksize.

       inode_ratio
              This relation specifies the default inode ratio if the user does
              not  specify  one  on  the command line, and the filesystem-type
              specific section of the configuration file does  not  specify  a
              default inode ratio.

       inode_size
              This  relation specifies the default inode size if the user does
              not specify one on the command  line,  and  the  filesystem-type
              specific  section  of  the configuration file does not specify a
              default inode size.

THE [fs_types] STANZA

       Each tag in the [fs_types] stanza names a filesystem type which can  be
       specified  via  the  -T option to mke2fs(8).  The value of the tag is a
       subsection where the relations in that subsection define  the  defaults
       for that filesystem type. For example:

       [fs_types]
            small = {
                 blocksize = 1024
                 inode_ratio = 4096
            }
            floppy = {
                 blocksize = 1024
            }

       For  each  filesystem  type,  the  following  tags  may be used in that
       fs_type’s subsection:

       base_features
              This relation specifies the features which are enabled for  this
              filesystem type.

       default_features
              This  relation specifies set of features which should be enabled
              or  disabled  to  the  features  listed  in  the   base_features
              relation.  It may be overridden by the -O command-line option to
              mke2fs(8).

       blocksize
              This relation specifies the default blocksize if the  user  does
              not specify a blocksize on the command line.

       inode_ratio
              This relation specifies the default inode ratio if the user does
              not specify one on the command line.

       inode_size
              This relation specifies the default inode size if the user  does
              not specify one on the command line.

FILES

       /etc/mke2fs.conf
              The configuration file for mke2fs(8).

SEE ALSO

       mke2fs(8)