mke2fs.conf(5)mke2fs.conf(5)NAMEmke2fs.conf - Configuration file for mke2fs
DESCRIPTIONmke2fs.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 exam‐
ple 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 spa‐
ces. 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 charac‐
ter).
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. Other‐
wise, 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.
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 rela‐
tion. 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.
FILES
/etc/mke2fs.conf
The configuration file for mke2fs(8).
SEE ALSOmke2fs(8)E2fsprogs version 1.39 May 2006 mke2fs.conf(5)
