2 # File system configuration
8 tristate "Second extended fs support"
10 This is the de facto standard Linux file system (method to organize
11 files on a storage device) for hard disks.
13 You want to say Y here, unless you intend to use Linux exclusively
14 from inside a DOS partition using the UMSDOS file system. The
15 advantage of the latter is that you can get away without
16 repartitioning your hard drive (which often implies backing
17 everything up and restoring afterwards); the disadvantage is that
18 Linux becomes susceptible to DOS viruses and that UMSDOS is somewhat
19 slower than ext2fs. Even if you want to run Linux in this fashion,
20 it might be a good idea to have ext2fs around: it enables you to
21 read more floppy disks and facilitates the transition to a *real*
22 Linux partition later. Another (rare) case which doesn't require
23 ext2fs is a diskless Linux box which mounts all files over the
24 network using NFS (in this case it's sufficient to say Y to "NFS
25 file system support" below). Saying Y here will enlarge your kernel
28 The Ext2fs-Undeletion mini-HOWTO, available from
29 <http://www.tldp.org/docs.html#howto>, gives information about
30 how to retrieve deleted files on ext2fs file systems.
32 To change the behavior of ext2 file systems, you can use the tune2fs
33 utility ("man tune2fs"). To modify attributes of files and
34 directories on ext2 file systems, use chattr ("man chattr").
36 Ext2fs partitions can be read from within DOS using the ext2tool
37 command line tool package (available from
38 <ftp://ibiblio.org/pub/Linux/system/filesystems/ext2/>) and from
39 within Windows NT using the ext2nt command line tool package from
40 <ftp://ibiblio.org/pub/Linux/utils/dos/>. Explore2fs is a
41 graphical explorer for ext2fs partitions which runs on Windows 95
42 and Windows NT and includes experimental write support; it is
44 <http://jnewbigin-pc.it.swin.edu.au/Linux/Explore2fs.htm>.
46 To compile this file system support as a module, choose M here: the
47 module will be called ext2. Be aware however that the file system
48 of your root partition (the one containing the directory /) cannot
49 be compiled as a module, and so this could be dangerous. Most
50 everyone wants to say Y here.
53 bool "Ext2 extended attributes"
56 Extended attributes are name:value pairs associated with inodes by
57 the kernel or by users (see the attr(5) manual page, or visit
58 <http://acl.bestbits.at/> for details).
62 config EXT2_FS_POSIX_ACL
63 bool "Ext2 POSIX Access Control Lists"
64 depends on EXT2_FS_XATTR
66 Posix Access Control Lists (ACLs) support permissions for users and
67 groups beyond the owner/group/world scheme.
69 To learn more about Access Control Lists, visit the Posix ACLs for
70 Linux website <http://acl.bestbits.at/>.
72 If you don't know what Access Control Lists are, say N
74 config EXT2_FS_SECURITY
75 bool "Ext2 Security Labels"
76 depends on EXT2_FS_XATTR
78 Security labels support alternative access control models
79 implemented by security modules like SELinux. This option
80 enables an extended attribute handler for file security
81 labels in the ext2 filesystem.
83 If you are not using a security module that requires using
84 extended attributes for file security labels, say N.
87 tristate "Ext3 journalling file system support"
89 This is the journaling version of the Second extended file system
90 (often called ext3), the de facto standard Linux file system
91 (method to organize files on a storage device) for hard disks.
93 The journaling code included in this driver means you do not have
94 to run e2fsck (file system checker) on your file systems after a
95 crash. The journal keeps track of any changes that were being made
96 at the time the system crashed, and can ensure that your file system
97 is consistent without the need for a lengthy check.
99 Other than adding the journal to the file system, the on-disk format
100 of ext3 is identical to ext2. It is possible to freely switch
101 between using the ext3 driver and the ext2 driver, as long as the
102 file system has been cleanly unmounted, or e2fsck is run on the file
105 To add a journal on an existing ext2 file system or change the
106 behavior of ext3 file systems, you can use the tune2fs utility ("man
107 tune2fs"). To modify attributes of files and directories on ext3
108 file systems, use chattr ("man chattr"). You need to be using
109 e2fsprogs version 1.20 or later in order to create ext3 journals
110 (available at <http://sourceforge.net/projects/e2fsprogs/>).
112 To compile this file system support as a module, choose M here: the
113 module will be called ext3. Be aware however that the file system
114 of your root partition (the one containing the directory /) cannot
115 be compiled as a module, and so this may be dangerous.
118 bool "Ext3 extended attributes"
122 Extended attributes are name:value pairs associated with inodes by
123 the kernel or by users (see the attr(5) manual page, or visit
124 <http://acl.bestbits.at/> for details).
128 You need this for POSIX ACL support on ext3.
130 config EXT3_FS_POSIX_ACL
131 bool "Ext3 POSIX Access Control Lists"
132 depends on EXT3_FS_XATTR
134 Posix Access Control Lists (ACLs) support permissions for users and
135 groups beyond the owner/group/world scheme.
137 To learn more about Access Control Lists, visit the Posix ACLs for
138 Linux website <http://acl.bestbits.at/>.
140 If you don't know what Access Control Lists are, say N
142 config EXT3_FS_SECURITY
143 bool "Ext3 Security Labels"
144 depends on EXT3_FS_XATTR
146 Security labels support alternative access control models
147 implemented by security modules like SELinux. This option
148 enables an extended attribute handler for file security
149 labels in the ext3 filesystem.
151 If you are not using a security module that requires using
152 extended attributes for file security labels, say N.
155 # CONFIG_JBD could be its own option (even modular), but until there are
156 # other users than ext3, we will simply make it be the same as CONFIG_EXT3_FS
157 # dep_tristate ' Journal Block Device support (JBD for ext3)' CONFIG_JBD $CONFIG_EXT3_FS
161 This is a generic journaling layer for block devices. It is
162 currently used by the ext3 file system, but it could also be used to
163 add journal support to other file systems or block devices such as
166 If you are using the ext3 file system, you need to say Y here. If
167 you are not using ext3 then you will probably want to say N.
169 To compile this device as a module, choose M here: the module will be
170 called jbd. If you are compiling ext3 into the kernel, you cannot
171 compile this code as a module.
174 bool "JBD (ext3) debugging support"
177 If you are using the ext3 journaled file system (or potentially any
178 other file system/device using JBD), this option allows you to
179 enable debugging output while the system is running, in order to
180 help track down any problems you are having. By default the
181 debugging output will be turned off.
183 If you select Y here, then you will be able to turn on debugging
184 with "echo N > /proc/sys/fs/jbd-debug", where N is a number between
185 1 and 5, the higher the number, the more debugging output is
186 generated. To turn debugging off again, do
187 "echo 0 > /proc/sys/fs/jbd-debug".
190 # Meta block cache for Extended Attributes (ext2/ext3)
192 depends on EXT2_FS_XATTR || EXT3_FS_XATTR
193 default y if EXT2_FS=y || EXT3_FS=y
194 default m if EXT2_FS=m || EXT3_FS=m
197 tristate "Reiserfs support"
199 Stores not just filenames but the files themselves in a balanced
200 tree. Uses journaling.
202 Balanced trees are more efficient than traditional file system
203 architectural foundations.
205 In general, ReiserFS is as fast as ext2, but is very efficient with
206 large directories and small files. Additional patches are needed
207 for NFS and quotas, please see <http://www.namesys.com/> for links.
209 It is more easily extended to have features currently found in
210 database and keyword search systems than block allocation based file
211 systems are. The next version will be so extended, and will support
212 plugins consistent with our motto ``It takes more than a license to
213 make source code open.''
215 Read <http://www.namesys.com/> to learn more about reiserfs.
217 Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com.
219 If you like it, you can pay us to add new features to it that you
220 need, buy a support contract, or pay us to port it to another OS.
222 config REISERFS_CHECK
223 bool "Enable reiserfs debug mode"
224 depends on REISERFS_FS
226 If you set this to Y, then ReiserFS will perform every check it can
227 possibly imagine of its internal consistency throughout its
228 operation. It will also go substantially slower. More than once we
229 have forgotten that this was on, and then gone despondent over the
230 latest benchmarks.:-) Use of this option allows our team to go all
231 out in checking for consistency when debugging without fear of its
232 effect on end users. If you are on the verge of sending in a bug
233 report, say Y and you might get a useful error message. Almost
234 everyone should say N.
236 config REISERFS_PROC_INFO
237 bool "Stats in /proc/fs/reiserfs"
238 depends on REISERFS_FS
240 Create under /proc/fs/reiserfs a hierarchy of files, displaying
241 various ReiserFS statistics and internal data at the expense of
242 making your kernel or module slightly larger (+8 KB). This also
243 increases the amount of kernel memory required for each mount.
244 Almost everyone but ReiserFS developers and people fine-tuning
245 reiserfs or tracing problems should say N.
247 config REISERFS_FS_XATTR
248 bool "ReiserFS extended attributes"
249 depends on REISERFS_FS
251 Extended attributes are name:value pairs associated with inodes by
252 the kernel or by users (see the attr(5) manual page, or visit
253 <http://acl.bestbits.at/> for details).
257 config REISERFS_FS_POSIX_ACL
258 bool "ReiserFS POSIX Access Control Lists"
259 depends on REISERFS_FS_XATTR
261 Posix Access Control Lists (ACLs) support permissions for users and
262 groups beyond the owner/group/world scheme.
264 To learn more about Access Control Lists, visit the Posix ACLs for
265 Linux website <http://acl.bestbits.at/>.
267 If you don't know what Access Control Lists are, say N
269 config REISERFS_FS_SECURITY
270 bool "ReiserFS Security Labels"
271 depends on REISERFS_FS_XATTR
273 Security labels support alternative access control models
274 implemented by security modules like SELinux. This option
275 enables an extended attribute handler for file security
276 labels in the ReiserFS filesystem.
278 If you are not using a security module that requires using
279 extended attributes for file security labels, say N.
282 tristate "JFS filesystem support"
285 This is a port of IBM's Journaled Filesystem . More information is
286 available in the file Documentation/filesystems/jfs.txt.
288 If you do not intend to use the JFS filesystem, say N.
291 bool "JFS POSIX Access Control Lists"
294 Posix Access Control Lists (ACLs) support permissions for users and
295 groups beyond the owner/group/world scheme.
297 To learn more about Access Control Lists, visit the Posix ACLs for
298 Linux website <http://acl.bestbits.at/>.
300 If you don't know what Access Control Lists are, say N
306 If you are experiencing any problems with the JFS filesystem, say
307 Y here. This will result in additional debugging messages to be
308 written to the system log. Under normal circumstances, this
309 results in very little overhead.
311 config JFS_STATISTICS
312 bool "JFS statistics"
315 Enabling this option will cause statistics from the JFS file system
316 to be made available to the user in the /proc/fs/jfs/ directory.
319 # Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs)
321 # NOTE: you can implement Posix ACLs without these helpers (XFS does).
322 # Never use this symbol for ifdefs.
325 depends on EXT2_FS_POSIX_ACL || EXT3_FS_POSIX_ACL || JFS_POSIX_ACL || REISERFS_FS_POSIX_ACL
329 tristate "XFS filesystem support"
331 XFS is a high performance journaling filesystem which originated
332 on the SGI IRIX platform. It is completely multi-threaded, can
333 support large files and large filesystems, extended attributes,
334 variable block sizes, is extent based, and makes extensive use of
335 Btrees (directories, extents, free space) to aid both performance
338 Refer to the documentation at <http://oss.sgi.com/projects/xfs/>
339 for complete details. This implementation is on-disk compatible
340 with the IRIX version of XFS.
342 To compile this file system support as a module, choose M here: the
343 module will be called xfs. Be aware, however, that if the file
344 system of your root partition is compiled as a module, you'll need
345 to use an initial ramdisk (initrd) to boot.
348 bool "Realtime support (EXPERIMENTAL)"
349 depends on XFS_FS && EXPERIMENTAL
351 If you say Y here you will be able to mount and use XFS filesystems
352 which contain a realtime subvolume. The realtime subvolume is a
353 separate area of disk space where only file data is stored. The
354 realtime subvolume is designed to provide very deterministic
355 data rates suitable for media streaming applications.
357 See the xfs man page in section 5 for a bit more information.
359 This feature is unsupported at this time, is not yet fully
360 functional, and may cause serious problems.
368 If you say Y here, you will be able to set limits for disk usage on
369 a per user and/or a per group basis under XFS. XFS considers quota
370 information as filesystem metadata and uses journaling to provide a
371 higher level guarantee of consistency. The on-disk data format for
372 quota is also compatible with the IRIX version of XFS, allowing a
373 filesystem to be migrated between Linux and IRIX without any need
376 If unsure, say N. More comprehensive documentation can be found in
377 README.quota in the xfsprogs package. XFS quota can be used either
378 with or without the generic quota support enabled (CONFIG_QUOTA) -
379 they are completely independent subsystems.
382 bool "Security Label support"
385 Security labels support alternative access control models
386 implemented by security modules like SELinux. This option
387 enables an extended attribute namespace for inode security
388 labels in the XFS filesystem.
390 If you are not using a security module that requires using
391 extended attributes for inode security labels, say N.
394 bool "POSIX ACL support"
397 POSIX Access Control Lists (ACLs) support permissions for users and
398 groups beyond the owner/group/world scheme.
400 To learn more about Access Control Lists, visit the POSIX ACLs for
401 Linux website <http://acl.bestbits.at/>.
403 If you don't know what Access Control Lists are, say N.
406 tristate "Minix fs support"
408 Minix is a simple operating system used in many classes about OS's.
409 The minix file system (method to organize files on a hard disk
410 partition or a floppy disk) was the original file system for Linux,
411 but has been superseded by the second extended file system ext2fs.
412 You don't want to use the minix file system on your hard disk
413 because of certain built-in restrictions, but it is sometimes found
414 on older Linux floppy disks. This option will enlarge your kernel
415 by about 28 KB. If unsure, say N.
417 To compile this file system support as a module, choose M here: the
418 module will be called minix. Note that the file system of your root
419 partition (the one containing the directory /) cannot be compiled as
423 tristate "ROM file system support"
425 This is a very small read-only file system mainly intended for
426 initial ram disks of installation disks, but it could be used for
427 other read-only media as well. Read
428 <file:Documentation/filesystems/romfs.txt> for details.
430 To compile this file system support as a module, choose M here: the
431 module will be called romfs. Note that the file system of your
432 root partition (the one containing the directory /) cannot be a
435 If you don't know whether you need it, then you don't need it:
441 If you say Y here, you will be able to set per user limits for disk
442 usage (also called disk quotas). Currently, it works for the
443 ext2, ext3, and reiserfs file system. ext3 also supports journalled
444 quotas for which you don't need to run quotacheck(8) after an unclean
445 shutdown. You need additional software in order to use quota support
446 (you can download sources from
447 <http://www.sf.net/projects/linuxquota/>). For further details, read
448 the Quota mini-HOWTO, available from
449 <http://www.tldp.org/docs.html#howto>, or the documentation provided
450 with the quota tools. Probably the quota support is only useful for
451 multi user systems. If unsure, say N.
454 tristate "Old quota format support"
457 This quota format was (is) used by kernels earlier than 2.4.22. If
458 you have quota working and you don't want to convert to new quota
462 tristate "Quota format v2 support"
465 This quota format allows using quotas with 32-bit UIDs/GIDs. If you
466 need this functionality say Y here. Note that you will need recent
467 quota utilities (>= 3.01) for new quota format with this kernel.
471 depends on XFS_QUOTA || QUOTA
475 tristate "Kernel automounter support"
477 The automounter is a tool to automatically mount remote file systems
478 on demand. This implementation is partially kernel-based to reduce
479 overhead in the already-mounted case; this is unlike the BSD
480 automounter (amd), which is a pure user space daemon.
482 To use the automounter you need the user-space tools from the autofs
483 package; you can find the location in <file:Documentation/Changes>.
484 You also want to answer Y to "NFS file system support", below.
486 If you want to use the newer version of the automounter with more
487 features, say N here and say Y to "Kernel automounter v4 support",
490 To compile this support as a module, choose M here: the module will be
493 If you are not a part of a fairly large, distributed network, you
494 probably do not need an automounter, and can say N here.
497 tristate "Kernel automounter version 4 support (also supports v3)"
499 The automounter is a tool to automatically mount remote file systems
500 on demand. This implementation is partially kernel-based to reduce
501 overhead in the already-mounted case; this is unlike the BSD
502 automounter (amd), which is a pure user space daemon.
504 To use the automounter you need the user-space tools from
505 <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
506 want to answer Y to "NFS file system support", below.
508 To compile this support as a module, choose M here: the module will be
509 called autofs4. You will need to add "alias autofs autofs4" to your
510 modules configuration file.
512 If you are not a part of a fairly large, distributed network or
513 don't have a laptop which needs to dynamically reconfigure to the
514 local network, you probably do not need an automounter, and can say
517 menu "CD-ROM/DVD Filesystems"
520 tristate "ISO 9660 CDROM file system support"
522 This is the standard file system used on CD-ROMs. It was previously
523 known as "High Sierra File System" and is called "hsfs" on other
524 Unix systems. The so-called Rock-Ridge extensions which allow for
525 long Unix filenames and symbolic links are also supported by this
526 driver. If you have a CD-ROM drive and want to do more with it than
527 just listen to audio CDs and watch its LEDs, say Y (and read
528 <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO,
529 available from <http://www.tldp.org/docs.html#howto>), thereby
530 enlarging your kernel by about 27 KB; otherwise say N.
532 To compile this file system support as a module, choose M here: the
533 module will be called isofs.
536 bool "Microsoft Joliet CDROM extensions"
537 depends on ISO9660_FS
540 Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
541 which allows for long filenames in unicode format (unicode is the
542 new 16 bit character code, successor to ASCII, which encodes the
543 characters of almost all languages of the world; see
544 <http://www.unicode.org/> for more information). Say Y here if you
545 want to be able to read Joliet CD-ROMs under Linux.
548 bool "Transparent decompression extension"
549 depends on ISO9660_FS
552 This is a Linux-specific extension to RockRidge which lets you store
553 data in compressed form on a CD-ROM and have it transparently
554 decompressed when the CD-ROM is accessed. See
555 <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
556 necessary to create such a filesystem. Say Y here if you want to be
557 able to read such compressed CD-ROMs.
560 # for fs/nls/Config.in
566 tristate "UDF file system support"
568 This is the new file system used on some CD-ROMs and DVDs. Say Y if
569 you intend to mount DVD discs or CDRW's written in packet mode, or
570 if written to by other UDF utilities, such as DirectCD.
571 Please read <file:Documentation/filesystems/udf.txt>.
573 To compile this file system support as a module, choose M here: the
574 module will be called udf.
580 menu "DOS/FAT/NT Filesystems"
583 tristate "DOS FAT fs support"
586 If you want to use one of the FAT-based file systems (the MS-DOS,
587 VFAT (Windows 95) and UMSDOS (used to run Linux on top of an
588 ordinary DOS partition) file systems), then you must say Y or M here
589 to include FAT support. You will then be able to mount partitions or
590 diskettes with FAT-based file systems and transparently access the
591 files on them, i.e. MSDOS files will look and behave just like all
594 This FAT support is not a file system in itself, it only provides
595 the foundation for the other file systems. You will have to say Y or
596 M to at least one of "MSDOS fs support" or "VFAT fs support" in
597 order to make use of it.
599 Another way to read and write MSDOS floppies and hard drive
600 partitions from within Linux (but not transparently) is with the
601 mtools ("man mtools") program suite. You don't need to say Y here in
604 If you need to move large files on floppies between a DOS and a
605 Linux box, say Y here, mount the floppy under Linux with an MSDOS
606 file system and use GNU tar's M option. GNU tar is a program
607 available for Unix and DOS ("man tar" or "info tar").
609 It is now also becoming possible to read and write compressed FAT
610 file systems; read <file:Documentation/filesystems/fat_cvf.txt> for
613 The FAT support will enlarge your kernel by about 37 KB. If unsure,
616 To compile this as a module, choose M here: the module will be called
617 fat. Note that if you compile the FAT support as a module, you
618 cannot compile any of the FAT-based file systems into the kernel
619 -- they will have to be modules as well.
620 The file system of your root partition (the one containing the
621 directory /) cannot be a module, so don't say M here if you intend
622 to use UMSDOS as your root file system.
625 tristate "MSDOS fs support"
628 This allows you to mount MSDOS partitions of your hard drive (unless
629 they are compressed; to access compressed MSDOS partitions under
630 Linux, you can either use the DOS emulator DOSEMU, described in the
631 DOSEMU-HOWTO, available from
632 <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
633 <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
634 intend to use dosemu with a non-compressed MSDOS partition, say Y
635 here) and MSDOS floppies. This means that file access becomes
636 transparent, i.e. the MSDOS files look and behave just like all
639 If you want to use UMSDOS, the Unix-like file system on top of a
640 DOS file system, which allows you to run Linux from within a DOS
641 partition without repartitioning, you'll have to say Y or M here.
643 If you have Windows 95 or Windows NT installed on your MSDOS
644 partitions, you should use the VFAT file system (say Y to "VFAT fs
645 support" below), or you will not be able to see the long filenames
646 generated by Windows 95 / Windows NT.
648 This option will enlarge your kernel by about 7 KB. If unsure,
649 answer Y. This will only work if you said Y to "DOS FAT fs support"
650 as well. To compile this as a module, choose M here: the module will
654 tristate "VFAT (Windows-95) fs support"
657 This option provides support for normal Windows file systems with
658 long filenames. That includes non-compressed FAT-based file systems
659 used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
660 programs from the mtools package.
662 You cannot use the VFAT file system for your Linux root partition
663 (the one containing the directory /); use UMSDOS instead if you
664 want to run Linux from within a DOS partition (i.e. say Y to
665 "Unix like fs on top of std MSDOS fs", below).
667 The VFAT support enlarges your kernel by about 10 KB and it only
668 works if you said Y to the "DOS FAT fs support" above. Please read
669 the file <file:Documentation/filesystems/vfat.txt> for details. If
672 To compile this as a module, choose M here: the module will be called
676 #dep_tristate ' UMSDOS: Unix-like file system on top of standard MSDOS fs' CONFIG_UMSDOS_FS $CONFIG_MSDOS_FS
677 # UMSDOS is temprory broken
680 Say Y here if you want to run Linux from within an existing DOS
681 partition of your hard drive. The advantage of this is that you can
682 get away without repartitioning your hard drive (which often implies
683 backing everything up and restoring afterwards) and hence you're
684 able to quickly try out Linux or show it to your friends; the
685 disadvantage is that Linux becomes susceptible to DOS viruses and
686 that UMSDOS is somewhat slower than ext2fs. Another use of UMSDOS
687 is to write files with long unix filenames to MSDOS floppies; it
688 also allows Unix-style soft-links and owner/permissions of files on
689 MSDOS floppies. You will need a program called umssync in order to
690 make use of UMSDOS; read
691 <file:Documentation/filesystems/umsdos.txt>.
693 To get utilities for initializing/checking UMSDOS file system, or
694 latest patches and/or information, visit the UMSDOS home page at
695 <http://www.voyager.hr/~mnalis/umsdos/>.
697 This option enlarges your kernel by about 28 KB and it only works if
698 you said Y to both "DOS FAT fs support" and "MSDOS fs support"
699 above. To compile this as a module, choose M here: the module will be
700 called umsdos. Note that the file system of your root partition
701 (the one containing the directory /) cannot be a module, so saying M
702 could be dangerous. If unsure, say N.
705 tristate "NTFS file system support"
708 NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
710 Saying Y or M here enables read support. There is partial, but
711 safe, write support available. For write support you must also
712 say Y to "NTFS write support" below.
714 There are also a number of user-space tools available, called
715 ntfsprogs. These include ntfsundelete and ntfsresize, that work
716 without NTFS support enabled in the kernel.
718 This is a rewrite from scratch of Linux NTFS support and replaced
719 the old NTFS code starting with Linux 2.5.11. A backport to
720 the Linux 2.4 kernel series is separately available as a patch
721 from the project web site.
723 For more information see <file:Documentation/filesystems/ntfs.txt>
724 and <http://linux-ntfs.sourceforge.net/>.
726 To compile this file system support as a module, choose M here: the
727 module will be called ntfs.
729 If you are not using Windows NT, 2000, XP or 2003 in addition to
730 Linux on your computer it is safe to say N.
733 bool "NTFS debugging support"
736 If you are experiencing any problems with the NTFS file system, say
737 Y here. This will result in additional consistency checks to be
738 performed by the driver as well as additional debugging messages to
739 be written to the system log. Note that debugging messages are
740 disabled by default. To enable them, supply the option debug_msgs=1
741 at the kernel command line when booting the kernel or as an option
742 to insmod when loading the ntfs module. Once the driver is active,
743 you can enable debugging messages by doing (as root):
744 echo 1 > /proc/sys/fs/ntfs-debug
745 Replacing the "1" with "0" would disable debug messages.
747 If you leave debugging messages disabled, this results in little
748 overhead, but enabling debug messages results in very significant
749 slowdown of the system.
751 When reporting bugs, please try to have available a full dump of
752 debugging messages while the misbehaviour was occurring.
755 bool "NTFS write support"
758 This enables the partial, but safe, write support in the NTFS driver.
760 The only supported operation is overwriting existing files, without
761 changing the file length. No file or directory creation, deletion or
762 renaming is possible. Note only non-resident files can be written to
763 so you may find that some very small files (<500 bytes or so) cannot
766 While we cannot guarantee that it will not damage any data, we have
767 so far not received a single report where the driver would have
768 damaged someones data so we assume it is perfectly safe to use.
770 Note: While write support is safe in this version (a rewrite from
771 scratch of the NTFS support), it should be noted that the old NTFS
772 write support, included in Linux 2.5.10 and before (since 1997),
775 This is currently useful with TopologiLinux. TopologiLinux is run
776 on top of any DOS/Microsoft Windows system without partitioning your
777 hard disk. Unlike other Linux distributions TopologiLinux does not
778 need its own partition. For more information see
779 <http://topologi-linux.sourceforge.net/>
781 It is perfectly safe to say N here.
785 menu "Pseudo filesystems"
788 bool "/proc file system support"
790 This is a virtual file system providing information about the status
791 of the system. "Virtual" means that it doesn't take up any space on
792 your hard disk: the files are created on the fly by the kernel when
793 you try to access them. Also, you cannot read the files with older
794 version of the program less: you need to use more or cat.
796 It's totally cool; for example, "cat /proc/interrupts" gives
797 information about what the different IRQs are used for at the moment
798 (there is a small number of Interrupt ReQuest lines in your computer
799 that are used by the attached devices to gain the CPU's attention --
800 often a source of trouble if two devices are mistakenly configured
801 to use the same IRQ). The program procinfo to display some
802 information about your system gathered from the /proc file system.
804 Before you can use the /proc file system, it has to be mounted,
805 meaning it has to be given a location in the directory hierarchy.
806 That location should be /proc. A command such as "mount -t proc proc
807 /proc" or the equivalent line in /etc/fstab does the job.
809 The /proc file system is explained in the file
810 <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
813 This option will enlarge your kernel by about 67 KB. Several
814 programs depend on this, so everyone should say Y here.
821 bool "sysfs file system support" if EMBEDDED
824 The sysfs filesystem is a virtual filesystem that the kernel uses to
825 export internal kernel objects, their attributes, and their
826 relationships to one another.
828 Users can use sysfs to ascertain useful information about the running
829 kernel, such as the devices the kernel has discovered on each bus and
830 which driver each is bound to. sysfs can also be used to tune devices
831 and other kernel subsystems.
833 Some system agents rely on the information in sysfs to operate.
834 /sbin/hotplug uses device and object attributes in sysfs to assist in
835 delegating policy decisions, like persistantly naming devices.
837 sysfs is currently used by the block subsystem to mount the root
838 partition. If sysfs is disabled you must specify the boot device on
839 the kernel boot command line via its major and minor numbers. For
840 example, "root=03:01" for /dev/hda1.
842 Designers of embedded systems may wish to say N here to conserve space.
845 bool "/dev file system support (OBSOLETE)"
846 depends on EXPERIMENTAL
848 This is support for devfs, a virtual file system (like /proc) which
849 provides the file system interface to device drivers, normally found
850 in /dev. Devfs does not depend on major and minor number
851 allocations. Device drivers register entries in /dev which then
852 appear automatically, which means that the system administrator does
853 not have to create character and block special device files in the
854 /dev directory using the mknod command (or MAKEDEV script) anymore.
856 This is work in progress. If you want to use this, you *must* read
857 the material in <file:Documentation/filesystems/devfs/>, especially
858 the file README there.
860 Note that devfs no longer manages /dev/pts! If you are using UNIX98
861 ptys, you will also need to mount the /dev/pts filesystem (devpts).
863 Note that devfs has been obsoleted by udev,
864 <http://www.kernel.org/pub/linux/utils/kernel/hotplug/>.
865 It has been stripped down to a bare minimum and is only provided for
866 legacy installations that use its naming scheme which is
867 unfortunately different from the names normal Linux installations
873 bool "Automatically mount at boot"
876 This option appears if you have CONFIG_DEVFS_FS enabled. Setting
877 this to 'Y' will make the kernel automatically mount devfs onto /dev
878 when the system is booted, before the init thread is started.
879 You can override this with the "devfs=nomount" boot option.
887 If you say Y here, then the /dev file system code will generate
888 debugging messages. See the file
889 <file:Documentation/filesystems/devfs/boot-options> for more
894 config DEVPTS_FS_XATTR
895 bool "/dev/pts Extended Attributes"
896 depends on UNIX98_PTYS
898 Extended attributes are name:value pairs associated with inodes by
899 the kernel or by users (see the attr(5) manual page, or visit
900 <http://acl.bestbits.at/> for details).
904 config DEVPTS_FS_SECURITY
905 bool "/dev/pts Security Labels"
906 depends on DEVPTS_FS_XATTR
908 Security labels support alternative access control models
909 implemented by security modules like SELinux. This option
910 enables an extended attribute handler for file security
911 labels in the /dev/pts filesystem.
913 If you are not using a security module that requires using
914 extended attributes for file security labels, say N.
917 bool "Virtual memory file system support (former shm fs)"
919 Tmpfs is a file system which keeps all files in virtual memory.
921 Everything in tmpfs is temporary in the sense that no files will be
922 created on your hard drive. The files live in memory and swap
923 space. If you unmount a tmpfs instance, everything stored therein is
926 See <file:Documentation/filesystems/tmpfs.txt> for details.
929 bool "HugeTLB file system support"
930 depends X86 || IA64 || PPC64 || SPARC64 || SUPERH || X86_64 || BROKEN
939 Ramfs is a file system which keeps all files in RAM. It allows
940 read and write access.
942 It is more of an programming example than a useable file system. If
943 you need a file system which lives in RAM with limit checking use
946 To compile this as a module, choose M here: the module will be called
950 tristate "Relayfs file system support"
952 Relayfs is a high-speed data relay filesystem designed to provide
953 an efficient mechanism for tools and facilities to relay large
954 amounts of data from kernel space to user space. It's not useful
955 on its own, and should only be enabled if other facilities that
956 need it are enabled, such as for example klog or the Linux Trace
959 See <file:Documentation/filesystems/relayfs.txt> for further
962 This file system is also available as a module ( = code which can be
963 inserted in and removed from the running kernel whenever you want).
964 The module is called relayfs. If you want to compile it as a
965 module, say M here and read <file:Documentation/modules.txt>.
970 bool "Enable klog debugging support"
971 depends on RELAYFS_FS
973 If you say Y to this, a relayfs channel named klog will be created
974 in the root of the relayfs file system. You can write to the klog
975 channel using klog() or klog_raw() from within the kernel or
976 kernel modules, and read from the klog channel by mounting relayfs
977 and using read(2) to read from it (or using cat). If you're not
980 config KLOG_CHANNEL_AUTOENABLE
981 bool "Enable klog logging on startup"
982 depends on KLOG_CHANNEL
985 If you say Y to this, the klog channel will be automatically enabled
986 on startup. Otherwise, to turn klog logging on, you need use
987 sysctl (fs.relayfs.klog_enabled). This option is used in cases where
988 you don't actually want the channel to be written to until it's
989 enabled. If you're not sure, say Y.
991 config KLOG_CHANNEL_SHIFT
992 depends on KLOG_CHANNEL
993 int "klog debugging channel size (14 => 16KB, 22 => 4MB)"
997 Select klog debugging channel size as a power of 2.
1001 menu "Miscellaneous filesystems"
1004 tristate "ADFS file system support (EXPERIMENTAL)"
1005 depends on EXPERIMENTAL
1007 The Acorn Disc Filing System is the standard file system of the
1008 RiscOS operating system which runs on Acorn's ARM-based Risc PC
1009 systems and the Acorn Archimedes range of machines. If you say Y
1010 here, Linux will be able to read from ADFS partitions on hard drives
1011 and from ADFS-formatted floppy discs. If you also want to be able to
1012 write to those devices, say Y to "ADFS write support" below.
1014 The ADFS partition should be the first partition (i.e.,
1015 /dev/[hs]d?1) on each of your drives. Please read the file
1016 <file:Documentation/filesystems/adfs.txt> for further details.
1018 To compile this code as a module, choose M here: the module will be
1024 bool "ADFS write support (DANGEROUS)"
1027 If you say Y here, you will be able to write to ADFS partitions on
1028 hard drives and ADFS-formatted floppy disks. This is experimental
1029 codes, so if you're unsure, say N.
1032 tristate "Amiga FFS file system support (EXPERIMENTAL)"
1033 depends on EXPERIMENTAL
1035 The Fast File System (FFS) is the common file system used on hard
1036 disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y
1037 if you want to be able to read and write files from and to an Amiga
1038 FFS partition on your hard drive. Amiga floppies however cannot be
1039 read with this driver due to an incompatibility of the floppy
1040 controller used in an Amiga and the standard floppy controller in
1041 PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
1042 and <file:fs/affs/Changes>.
1044 With this driver you can also mount disk files used by Bernd
1045 Schmidt's Un*X Amiga Emulator
1046 (<http://www.freiburg.linux.de/~uae/>).
1047 If you want to do this, you will also need to say Y or M to "Loop
1048 device support", above.
1050 To compile this file system support as a module, choose M here: the
1051 module will be called affs. If unsure, say N.
1054 tristate "Apple Macintosh file system support (EXPERIMENTAL)"
1055 depends on EXPERIMENTAL
1057 If you say Y here, you will be able to mount Macintosh-formatted
1058 floppy disks and hard drive partitions with full read-write access.
1059 Please read <file:fs/hfs/HFS.txt> to learn about the available mount
1062 To compile this file system support as a module, choose M here: the
1063 module will be called hfs.
1066 tristate "Apple Extended HFS file system support"
1069 If you say Y here, you will be able to mount extended format
1070 Macintosh-formatted hard drive partitions with full read-write access.
1072 This file system is often called HFS+ and was introduced with
1073 MacOS 8. It includes all Mac specific filesystem data such as
1074 data forks and creator codes, but it also has several UNIX
1075 style features such as file ownership and permissions.
1078 tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
1079 depends on EXPERIMENTAL
1082 The BeOS File System (BeFS) is the native file system of Be, Inc's
1083 BeOS. Notable features include support for arbitrary attributes
1084 on files and directories, and database-like indices on selected
1085 attributes. (Also note that this driver doesn't make those features
1086 available at this time). It is a 64 bit filesystem, so it supports
1087 extreemly large volumes and files.
1089 If you use this filesystem, you should also say Y to at least one
1090 of the NLS (native language support) options below.
1092 If you don't know what this is about, say N.
1094 To compile this as a module, choose M here: the module will be
1101 If you say Y here, you can use the 'debug' mount option to enable
1102 debugging output from the driver.
1105 tristate "BFS file system support (EXPERIMENTAL)"
1106 depends on EXPERIMENTAL
1108 Boot File System (BFS) is a file system used under SCO UnixWare to
1109 allow the bootloader access to the kernel image and other important
1110 files during the boot process. It is usually mounted under /stand
1111 and corresponds to the slice marked as "STAND" in the UnixWare
1112 partition. You should say Y if you want to read or write the files
1113 on your /stand slice from within Linux. You then also need to say Y
1114 to "UnixWare slices support", below. More information about the BFS
1115 file system is contained in the file
1116 <file:Documentation/filesystems/bfs.txt>.
1118 If you don't know what this is about, say N.
1120 To compile this as a module, choose M here: the module will be called
1121 bfs. Note that the file system of your root partition (the one
1122 containing the directory /) cannot be compiled as a module.
1127 tristate "EFS file system support (read only) (EXPERIMENTAL)"
1128 depends on EXPERIMENTAL
1130 EFS is an older file system used for non-ISO9660 CD-ROMs and hard
1131 disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
1132 uses the XFS file system for hard disk partitions however).
1134 This implementation only offers read-only access. If you don't know
1135 what all this is about, it's safe to say N. For more information
1136 about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
1138 To compile the EFS file system support as a module, choose M here: the
1139 module will be called efs.
1142 tristate "Journalling Flash File System (JFFS) support"
1145 JFFS is the Journaling Flash File System developed by Axis
1146 Communications in Sweden, aimed at providing a crash/powerdown-safe
1147 file system for disk-less embedded devices. Further information is
1148 available at (<http://developer.axis.com/software/jffs/>).
1150 config JFFS_FS_VERBOSE
1151 int "JFFS debugging verbosity (0 = quiet, 3 = noisy)"
1155 Determines the verbosity level of the JFFS debugging messages.
1158 bool "JFFS stats available in /proc filesystem"
1159 depends on JFFS_FS && PROC
1161 Enabling this option will cause statistics from mounted JFFS file systems
1162 to be made available to the user in the /proc/fs/jffs/ directory.
1165 tristate "Journalling Flash File System v2 (JFFS2) support"
1171 JFFS2 is the second generation of the Journalling Flash File System
1172 for use on diskless embedded devices. It provides improved wear
1173 levelling, compression and support for hard links. You cannot use
1174 this on normal block devices, only on 'MTD' devices.
1176 Further information on the design and implementation of JFFS2 is
1177 available at <http://sources.redhat.com/jffs2/>.
1179 config JFFS2_FS_DEBUG
1180 int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)"
1184 This controls the amount of debugging messages produced by the JFFS2
1185 code. Set it to zero for use in production systems. For evaluation,
1186 testing and debugging, it's advisable to set it to one. This will
1187 enable a few assertions and will print debugging messages at the
1188 KERN_DEBUG loglevel, where they won't normally be visible. Level 2
1189 is unlikely to be useful - it enables extra debugging in certain
1190 areas which at one point needed debugging, but when the bugs were
1191 located and fixed, the detailed messages were relegated to level 2.
1193 If reporting bugs, please try to have available a full dump of the
1194 messages at debug level 1 while the misbehaviour was occurring.
1196 config JFFS2_FS_NAND
1197 bool "JFFS2 support for NAND flash (EXPERIMENTAL)"
1198 depends on JFFS2_FS && EXPERIMENTAL
1201 This enables the experimental support for NAND flash in JFFS2. NAND
1202 is a newer type of flash chip design than the traditional NOR flash,
1203 with higher density but a handful of characteristics which make it
1204 more interesting for the file system to use. Support for NAND flash
1205 is not yet complete and may corrupt data. For further information,
1206 including a link to the mailing list where details of the remaining
1207 work to be completed for NAND flash support can be found, see the
1208 JFFS2 web site at <http://sources.redhat.com/jffs2>.
1210 Say 'N' unless you have NAND flash and you are willing to test and
1211 develop JFFS2 support for it.
1214 tristate "Compressed ROM file system support"
1217 Saying Y here includes support for CramFs (Compressed ROM File
1218 System). CramFs is designed to be a simple, small, and compressed
1219 file system for ROM based embedded systems. CramFs is read-only,
1220 limited to 256MB file systems (with 16MB files), and doesn't support
1221 16/32 bits uid/gid, hard links and timestamps.
1223 See <file:Documentation/filesystems/cramfs.txt> and
1224 <file:fs/cramfs/README> for further information.
1226 To compile this as a module, choose M here: the module will be called
1227 cramfs. Note that the root file system (the one containing the
1228 directory /) cannot be compiled as a module.
1233 tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
1235 FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
1236 file system format. VERITAS VxFS(TM) is the standard file system
1237 of SCO UnixWare (and possibly others) and optionally available
1238 for Sunsoft Solaris, HP-UX and many other operating systems.
1239 Currently only readonly access is supported.
1241 NOTE: the file system type as used by mount(1), mount(2) and
1242 fstab(5) is 'vxfs' as it describes the file system format, not
1245 To compile this as a module, choose M here: the module will be
1246 called freevxfs. If unsure, say N.
1250 tristate "OS/2 HPFS file system support"
1252 OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
1253 is the file system used for organizing files on OS/2 hard disk
1254 partitions. Say Y if you want to be able to read files from and
1255 write files to an OS/2 HPFS partition on your hard drive. OS/2
1256 floppies however are in regular MSDOS format, so you don't need this
1257 option in order to be able to read them. Read
1258 <file:Documentation/filesystems/hpfs.txt>.
1260 To compile this file system support as a module, choose M here: the
1261 module will be called hpfs. If unsure, say N.
1264 tristate "QNX4 file system support (read only)"
1266 This is the file system used by the real-time operating systems
1267 QNX 4 and QNX 6 (the latter is also called QNX RTP).
1268 Further information is available at <http://www.qnx.com/>.
1269 Say Y if you intend to mount QNX hard disks or floppies.
1270 Unless you say Y to "QNX4FS read-write support" below, you will
1271 only be able to read these file systems.
1273 To compile this file system support as a module, choose M here: the
1274 module will be called qnx4.
1276 If you don't know whether you need it, then you don't need it:
1280 bool "QNX4FS write support (DANGEROUS)"
1281 depends on QNX4FS_FS && EXPERIMENTAL
1283 Say Y if you want to test write support for QNX4 file systems.
1285 It's currently broken, so for now:
1289 tristate "System V/Xenix/V7/Coherent file system support"
1291 SCO, Xenix and Coherent are commercial Unix systems for Intel
1292 machines, and Version 7 was used on the DEC PDP-11. Saying Y
1293 here would allow you to read from their floppies and hard disk
1296 If you have floppies or hard disk partitions like that, it is likely
1297 that they contain binaries from those other Unix systems; in order
1298 to run these binaries, you will want to install linux-abi which is a
1299 a set of kernel modules that lets you run SCO, Xenix, Wyse,
1300 UnixWare, Dell Unix and System V programs under Linux. It is
1301 available via FTP (user: ftp) from
1302 <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
1303 NOTE: that will work only for binaries from Intel-based systems;
1304 PDP ones will have to wait until somebody ports Linux to -11 ;-)
1306 If you only intend to mount files from some other Unix over the
1307 network using NFS, you don't need the System V file system support
1308 (but you need NFS file system support obviously).
1310 Note that this option is generally not needed for floppies, since a
1311 good portable way to transport files and directories between unixes
1312 (and even other operating systems) is given by the tar program ("man
1313 tar" or preferably "info tar"). Note also that this option has
1314 nothing whatsoever to do with the option "System V IPC". Read about
1315 the System V file system in
1316 <file:Documentation/filesystems/sysv-fs.txt>.
1317 Saying Y here will enlarge your kernel by about 27 KB.
1319 To compile this as a module, choose M here: the module will be called
1322 If you haven't heard about all of this before, it's safe to say N.
1325 tristate "UFS file system support (read only)"
1327 BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
1328 OpenBSD and NeXTstep) use a file system called UFS. Some System V
1329 Unixes can create and mount hard disk partitions and diskettes using
1330 this file system as well. Saying Y here will allow you to read from
1331 these partitions; if you also want to write to them, say Y to the
1332 experimental "UFS file system write support", below. Please read the
1333 file <file:Documentation/filesystems/ufs.txt> for more information.
1335 The recently released UFS2 variant (used in FreeBSD 5.x) is
1336 READ-ONLY supported.
1338 If you only intend to mount files from some other Unix over the
1339 network using NFS, you don't need the UFS file system support (but
1340 you need NFS file system support obviously).
1342 Note that this option is generally not needed for floppies, since a
1343 good portable way to transport files and directories between unixes
1344 (and even other operating systems) is given by the tar program ("man
1345 tar" or preferably "info tar").
1347 When accessing NeXTstep files, you may need to convert them from the
1348 NeXT character set to the Latin1 character set; use the program
1349 recode ("info recode") for this purpose.
1351 To compile the UFS file system support as a module, choose M here: the
1352 module will be called ufs.
1354 If you haven't heard about all of this before, it's safe to say N.
1357 bool "UFS file system write support (DANGEROUS)"
1358 depends on UFS_FS && EXPERIMENTAL
1360 Say Y here if you want to try writing to UFS partitions. This is
1361 experimental, so you should back up your UFS partitions beforehand.
1365 menu "Network File Systems"
1369 tristate "NFS file system support"
1374 If you are connected to some other (usually local) Unix computer
1375 (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing
1376 on that computer (the NFS server) using the Network File Sharing
1377 protocol, say Y. "Mounting files" means that the client can access
1378 the files with usual UNIX commands as if they were sitting on the
1379 client's hard disk. For this to work, the server must run the
1380 programs nfsd and mountd (but does not need to have NFS file system
1381 support enabled in its kernel). NFS is explained in the Network
1382 Administrator's Guide, available from
1383 <http://www.tldp.org/docs.html#guide>, on its man page: "man
1384 nfs", and in the NFS-HOWTO.
1386 A superior but less widely used alternative to NFS is provided by
1387 the Coda file system; see "Coda file system support" below.
1389 If you say Y here, you should have said Y to TCP/IP networking also.
1390 This option would enlarge your kernel by about 27 KB.
1392 To compile this file system support as a module, choose M here: the
1393 module will be called nfs.
1395 If you are configuring a diskless machine which will mount its root
1396 file system over NFS at boot time, say Y here and to "Kernel
1397 level IP autoconfiguration" above and to "Root file system on NFS"
1398 below. You cannot compile this driver as a module in this case.
1399 There are two packages designed for booting diskless machines over
1400 the net: netboot, available from
1401 <http://ftp1.sourceforge.net/netboot/>, and Etherboot,
1402 available from <http://ftp1.sourceforge.net/etherboot/>.
1404 If you don't know what all this is about, say N.
1407 bool "Provide NFSv3 client support"
1410 Say Y here if you want your NFS client to be able to speak the newer
1411 version 3 of the NFS protocol.
1416 bool "Provide NFSv4 client support (EXPERIMENTAL)"
1417 depends on NFS_FS && EXPERIMENTAL
1418 select RPCSEC_GSS_KRB5
1420 Say Y here if you want your NFS client to be able to speak the newer
1421 version 4 of the NFS protocol.
1423 Note: Requires auxiliary userspace daemons which may be found on
1424 http://www.citi.umich.edu/projects/nfsv4/
1429 bool "Allow direct I/O on NFS files (EXPERIMENTAL)"
1430 depends on NFS_FS && EXPERIMENTAL
1432 This option enables applications to perform uncached I/O on files
1433 in NFS file systems using the O_DIRECT open() flag. When O_DIRECT
1434 is set for a file, its data is not cached in the system's page
1435 cache. Data is moved to and from user-level application buffers
1436 directly. Unlike local disk-based file systems, NFS O_DIRECT has
1437 no alignment restrictions.
1439 Unless your program is designed to use O_DIRECT properly, you are
1440 much better off allowing the NFS client to manage data caching for
1441 you. Misusing O_DIRECT can cause poor server performance or network
1442 storms. This kernel build option defaults OFF to avoid exposing
1443 system administrators unwittingly to a potentially hazardous
1446 For more details on NFS O_DIRECT, see fs/nfs/direct.c.
1448 If unsure, say N. This reduces the size of the NFS client, and
1449 causes open() to return EINVAL if a file residing in NFS is
1450 opened with the O_DIRECT flag.
1453 tristate "NFS server support"
1458 If you want your Linux box to act as an NFS *server*, so that other
1459 computers on your local network which support NFS can access certain
1460 directories on your box transparently, you have two options: you can
1461 use the self-contained user space program nfsd, in which case you
1462 should say N here, or you can say Y and use the kernel based NFS
1463 server. The advantage of the kernel based solution is that it is
1466 In either case, you will need support software; the respective
1467 locations are given in the file <file:Documentation/Changes> in the
1470 If you say Y here, you will get support for version 2 of the NFS
1471 protocol (NFSv2). If you also want NFSv3, say Y to the next question
1474 Please read the NFS-HOWTO, available from
1475 <http://www.tldp.org/docs.html#howto>.
1477 To compile the NFS server support as a module, choose M here: the
1478 module will be called nfsd. If unsure, say N.
1481 bool "Provide NFSv3 server support"
1484 If you would like to include the NFSv3 server as well as the NFSv2
1485 server, say Y here. If unsure, say Y.
1488 bool "Provide NFSv4 server support (EXPERIMENTAL)"
1489 depends on NFSD_V3 && EXPERIMENTAL
1491 If you would like to include the NFSv4 server as well as the NFSv2
1492 and NFSv3 servers, say Y here. This feature is experimental, and
1493 should only be used if you are interested in helping to test NFSv4.
1497 bool "Provide NFS server over TCP support (EXPERIMENTAL)"
1498 depends on NFSD && EXPERIMENTAL
1500 Enable NFS service over TCP connections. This the officially
1501 still experimental, but seems to work well.
1504 bool "Root file system on NFS"
1505 depends on NFS_FS=y && IP_PNP
1507 If you want your Linux box to mount its whole root file system (the
1508 one containing the directory /) from some other computer over the
1509 net via NFS (presumably because your box doesn't have a hard disk),
1510 say Y. Read <file:Documentation/nfsroot.txt> for details. It is
1511 likely that in this case, you also want to say Y to "Kernel level IP
1512 autoconfiguration" so that your box can discover its network address
1515 Most people say N here.
1522 depends on NFSD_V3 || NFS_V3
1535 config RPCSEC_GSS_KRB5
1536 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
1537 depends on SUNRPC && EXPERIMENTAL
1543 Provides for secure RPC calls by means of a gss-api
1544 mechanism based on Kerberos V5. This is required for
1547 Note: Requires an auxiliary userspace daemon which may be found on
1548 http://www.citi.umich.edu/projects/nfsv4/
1553 tristate "SMB file system support (to mount Windows shares etc.)"
1557 SMB (Server Message Block) is the protocol Windows for Workgroups
1558 (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
1559 files and printers over local networks. Saying Y here allows you to
1560 mount their file systems (often called "shares" in this context) and
1561 access them just like any other Unix directory. Currently, this
1562 works only if the Windows machines use TCP/IP as the underlying
1563 transport protocol, and not NetBEUI. For details, read
1564 <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
1565 available from <http://www.tldp.org/docs.html#howto>.
1567 Note: if you just want your box to act as an SMB *server* and make
1568 files and printing services available to Windows clients (which need
1569 to have a TCP/IP stack), you don't need to say Y here; you can use
1570 the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
1573 General information about how to connect Linux, Windows machines and
1574 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1576 To compile the SMB support as a module, choose M here: the module will
1577 be called smbfs. Most people say N, however.
1579 config SMB_NLS_DEFAULT
1580 bool "Use a default NLS"
1583 Enabling this will make smbfs use nls translations by default. You
1584 need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
1585 settings and you need to give the default nls for the SMB server as
1586 CONFIG_SMB_NLS_REMOTE.
1588 The nls settings can be changed at mount time, if your smbmount
1589 supports that, using the codepage and iocharset parameters.
1591 smbmount from samba 2.2.0 or later supports this.
1593 config SMB_NLS_REMOTE
1594 string "Default Remote NLS Option"
1595 depends on SMB_NLS_DEFAULT
1598 This setting allows you to specify a default value for which
1599 codepage the server uses. If this field is left blank no
1600 translations will be done by default. The local codepage/charset
1601 default to CONFIG_NLS_DEFAULT.
1603 The nls settings can be changed at mount time, if your smbmount
1604 supports that, using the codepage and iocharset parameters.
1606 smbmount from samba 2.2.0 or later supports this.
1609 tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)(EXPERIMENTAL)"
1613 This is the client VFS module for the Common Internet File System
1614 (CIFS) protocol which is the successor to the Server Message Block
1615 (SMB) protocol, the native file sharing mechanism for most early
1616 PC operating systems. The CIFS protocol is fully supported by
1617 file servers such as Windows 2000 (including Windows 2003, NT 4
1618 and Windows XP) as well by Samba (which provides excellent CIFS
1619 server support for Linux and many other operating systems). Currently
1620 you must use the smbfs client filesystem to access older SMB servers
1621 such as Windows 9x and OS/2.
1623 The intent of the cifs module is to provide an advanced
1624 network file system client for mounting to CIFS compliant servers,
1625 including support for dfs (hierarchical name space), secure per-user
1626 session establishment, safe distributed caching (oplock), optional
1627 packet signing, Unicode and other internationalization improvements,
1628 and optional Winbind (nsswitch) integration. You do not need to enable
1629 cifs if running only a (Samba) server. It is possible to enable both
1630 smbfs and cifs (e.g. if you are using CIFS for accessing Windows 2003
1631 and Samba 3 servers, and smbfs for accessing old servers). If you need
1632 to mount to Samba or Windows 2003 servers from this machine, say Y.
1635 bool "CIFS statistics"
1638 Enabling this option will cause statistics for each server share
1639 mounted by the cifs client to be displayed in /proc/fs/cifs/DebugData
1642 tristate "NCP file system support (to mount NetWare volumes)"
1643 depends on IPX!=n || INET
1645 NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
1646 used by Novell NetWare clients to talk to file servers. It is to
1647 IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you
1648 to mount NetWare file server volumes and to access them just like
1649 any other Unix directory. For details, please read the file
1650 <file:Documentation/filesystems/ncpfs.txt> in the kernel source and
1651 the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
1653 You do not have to say Y here if you want your Linux box to act as a
1654 file *server* for Novell NetWare clients.
1656 General information about how to connect Linux, Windows machines and
1657 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1659 To compile this as a module, choose M here: the module will be called
1660 ncpfs. Say N unless you are connected to a Novell network.
1662 source "fs/ncpfs/Kconfig"
1665 tristate "Coda file system support (advanced network fs)"
1668 Coda is an advanced network file system, similar to NFS in that it
1669 enables you to mount file systems of a remote server and access them
1670 with regular Unix commands as if they were sitting on your hard
1671 disk. Coda has several advantages over NFS: support for
1672 disconnected operation (e.g. for laptops), read/write server
1673 replication, security model for authentication and encryption,
1674 persistent client caches and write back caching.
1676 If you say Y here, your Linux box will be able to act as a Coda
1677 *client*. You will need user level code as well, both for the
1678 client and server. Servers are currently user level, i.e. they need
1679 no kernel support. Please read
1680 <file:Documentation/filesystems/coda.txt> and check out the Coda
1681 home page <http://www.coda.cs.cmu.edu/>.
1683 To compile the coda client support as a module, choose M here: the
1684 module will be called coda.
1686 config CODA_FS_OLD_API
1687 bool "Use 96-bit Coda file identifiers"
1690 A new kernel-userspace API had to be introduced for Coda v6.0
1691 to support larger 128-bit file identifiers as needed by the
1692 new realms implementation.
1694 However this new API is not backward compatible with older
1695 clients. If you really need to run the old Coda userspace
1696 cache manager then say Y.
1698 For most cases you probably want to say N.
1701 # for fs/nls/Config.in
1702 tristate "Andrew File System support (AFS) (Experimental)"
1703 depends on INET && EXPERIMENTAL
1706 If you say Y here, you will get an experimental Andrew File System
1707 driver. It currently only supports unsecured read-only AFS access.
1709 See Documentation/filesystems/afs.txt for more intormation.
1718 menu "Partition Types"
1720 source "fs/partitions/Kconfig"
1724 source "fs/nls/Kconfig"