1 # SPDX-License-Identifier: GPL-2.0-only
6 If you want to use one of the FAT-based file systems (the MS-DOS and
7 VFAT (Windows 95) file systems), then you must say Y or M here
8 to include FAT support. You will then be able to mount partitions or
9 diskettes with FAT-based file systems and transparently access the
10 files on them, i.e. MSDOS files will look and behave just like all
13 This FAT support is not a file system in itself, it only provides
14 the foundation for the other file systems. You will have to say Y or
15 M to at least one of "MSDOS fs support" or "VFAT fs support" in
16 order to make use of it.
18 Another way to read and write MSDOS floppies and hard drive
19 partitions from within Linux (but not transparently) is with the
20 mtools ("man mtools") program suite. You don't need to say Y here in
23 If you need to move large files on floppies between a DOS and a
24 Linux box, say Y here, mount the floppy under Linux with an MSDOS
25 file system and use GNU tar's M option. GNU tar is a program
26 available for Unix and DOS ("man tar" or "info tar").
28 The FAT support will enlarge your kernel by about 37 KB. If unsure,
31 To compile this as a module, choose M here: the module will be called
32 fat. Note that if you compile the FAT support as a module, you
33 cannot compile any of the FAT-based file systems into the kernel
34 -- they will have to be modules as well.
37 tristate "MSDOS fs support"
40 This allows you to mount MSDOS partitions of your hard drive (unless
41 they are compressed; to access compressed MSDOS partitions under
42 Linux, you can either use the DOS emulator DOSEMU, described in the
43 DOSEMU-HOWTO, available from
44 <https://www.tldp.org/docs.html#howto>, or try dmsdosfs in
45 <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
46 intend to use dosemu with a non-compressed MSDOS partition, say Y
47 here) and MSDOS floppies. This means that file access becomes
48 transparent, i.e. the MSDOS files look and behave just like all
51 If you have Windows 95 or Windows NT installed on your MSDOS
52 partitions, you should use the VFAT file system (say Y to "VFAT fs
53 support" below), or you will not be able to see the long filenames
54 generated by Windows 95 / Windows NT.
56 This option will enlarge your kernel by about 7 KB. If unsure,
57 answer Y. This will only work if you said Y to "DOS FAT fs support"
58 as well. To compile this as a module, choose M here: the module will
62 tristate "VFAT (Windows-95) fs support"
65 This option provides support for normal Windows file systems with
66 long filenames. That includes non-compressed FAT-based file systems
67 used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
68 programs from the mtools package.
70 The VFAT support enlarges your kernel by about 10 KB and it only
71 works if you said Y to the "DOS FAT fs support" above. Please read
72 the file <file:Documentation/filesystems/vfat.rst> for details. If
75 To compile this as a module, choose M here: the module will be called
78 config FAT_DEFAULT_CODEPAGE
79 int "Default codepage for FAT"
80 depends on MSDOS_FS || VFAT_FS
83 This option should be set to the codepage of your FAT filesystems.
84 It can be overridden with the "codepage" mount option.
85 See <file:Documentation/filesystems/vfat.rst> for more information.
87 config FAT_DEFAULT_IOCHARSET
88 string "Default iocharset for FAT"
92 Set this to the default input/output character set you'd
93 like FAT to use. It should probably match the character set
94 that most of your FAT filesystems use, and can be overridden
95 with the "iocharset" mount option for FAT filesystems.
96 Note that "utf8" is not recommended for FAT filesystems.
97 If unsure, you shouldn't set "utf8" here - select the next option
98 instead if you would like to use UTF-8 encoded file names by default.
99 See <file:Documentation/filesystems/vfat.rst> for more information.
101 Enable any character sets you need in File Systems/Native Language
104 config FAT_DEFAULT_UTF8
105 bool "Enable FAT UTF-8 option by default"
109 Set this if you would like to have "utf8" mount option set
110 by default when mounting FAT filesystems.
112 Even if you say Y here can always disable UTF-8 for
113 particular mount by adding "utf8=0" to mount options.
115 Say Y if you use UTF-8 encoding for file names, N otherwise.
117 See <file:Documentation/filesystems/vfat.rst> for more information.