2 # File system configuration
9 source "fs/ext2/Kconfig"
10 source "fs/ext3/Kconfig"
11 source "fs/ext4/Kconfig"
16 depends on EXT2_FS_XIP
19 source "fs/jbd/Kconfig"
20 source "fs/jbd2/Kconfig"
23 # Meta block cache for Extended Attributes (ext2/ext3/ext4)
25 default y if EXT2_FS=y && EXT2_FS_XATTR
26 default y if EXT3_FS=y && EXT3_FS_XATTR
27 default y if EXT4_FS=y && EXT4_FS_XATTR
28 default m if EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4_FS_XATTR
31 tristate "Reiserfs support"
33 Stores not just filenames but the files themselves in a balanced
34 tree. Uses journalling.
36 Balanced trees are more efficient than traditional file system
37 architectural foundations.
39 In general, ReiserFS is as fast as ext2, but is very efficient with
40 large directories and small files. Additional patches are needed
41 for NFS and quotas, please see <http://www.namesys.com/> for links.
43 It is more easily extended to have features currently found in
44 database and keyword search systems than block allocation based file
45 systems are. The next version will be so extended, and will support
46 plugins consistent with our motto ``It takes more than a license to
47 make source code open.''
49 Read <http://www.namesys.com/> to learn more about reiserfs.
51 Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com.
53 If you like it, you can pay us to add new features to it that you
54 need, buy a support contract, or pay us to port it to another OS.
57 bool "Enable reiserfs debug mode"
58 depends on REISERFS_FS
60 If you set this to Y, then ReiserFS will perform every check it can
61 possibly imagine of its internal consistency throughout its
62 operation. It will also go substantially slower. More than once we
63 have forgotten that this was on, and then gone despondent over the
64 latest benchmarks.:-) Use of this option allows our team to go all
65 out in checking for consistency when debugging without fear of its
66 effect on end users. If you are on the verge of sending in a bug
67 report, say Y and you might get a useful error message. Almost
68 everyone should say N.
70 config REISERFS_PROC_INFO
71 bool "Stats in /proc/fs/reiserfs"
72 depends on REISERFS_FS && PROC_FS
74 Create under /proc/fs/reiserfs a hierarchy of files, displaying
75 various ReiserFS statistics and internal data at the expense of
76 making your kernel or module slightly larger (+8 KB). This also
77 increases the amount of kernel memory required for each mount.
78 Almost everyone but ReiserFS developers and people fine-tuning
79 reiserfs or tracing problems should say N.
81 config REISERFS_FS_XATTR
82 bool "ReiserFS extended attributes"
83 depends on REISERFS_FS
85 Extended attributes are name:value pairs associated with inodes by
86 the kernel or by users (see the attr(5) manual page, or visit
87 <http://acl.bestbits.at/> for details).
91 config REISERFS_FS_POSIX_ACL
92 bool "ReiserFS POSIX Access Control Lists"
93 depends on REISERFS_FS_XATTR
96 Posix Access Control Lists (ACLs) support permissions for users and
97 groups beyond the owner/group/world scheme.
99 To learn more about Access Control Lists, visit the Posix ACLs for
100 Linux website <http://acl.bestbits.at/>.
102 If you don't know what Access Control Lists are, say N
104 config REISERFS_FS_SECURITY
105 bool "ReiserFS Security Labels"
106 depends on REISERFS_FS_XATTR
108 Security labels support alternative access control models
109 implemented by security modules like SELinux. This option
110 enables an extended attribute handler for file security
111 labels in the ReiserFS filesystem.
113 If you are not using a security module that requires using
114 extended attributes for file security labels, say N.
117 tristate "JFS filesystem support"
120 This is a port of IBM's Journaled Filesystem . More information is
121 available in the file <file:Documentation/filesystems/jfs.txt>.
123 If you do not intend to use the JFS filesystem, say N.
126 bool "JFS POSIX Access Control Lists"
130 Posix Access Control Lists (ACLs) support permissions for users and
131 groups beyond the owner/group/world scheme.
133 To learn more about Access Control Lists, visit the Posix ACLs for
134 Linux website <http://acl.bestbits.at/>.
136 If you don't know what Access Control Lists are, say N
139 bool "JFS Security Labels"
142 Security labels support alternative access control models
143 implemented by security modules like SELinux. This option
144 enables an extended attribute handler for file security
145 labels in the jfs filesystem.
147 If you are not using a security module that requires using
148 extended attributes for file security labels, say N.
154 If you are experiencing any problems with the JFS filesystem, say
155 Y here. This will result in additional debugging messages to be
156 written to the system log. Under normal circumstances, this
157 results in very little overhead.
159 config JFS_STATISTICS
160 bool "JFS statistics"
163 Enabling this option will cause statistics from the JFS file system
164 to be made available to the user in the /proc/fs/jfs/ directory.
167 # Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs/nfs4)
169 # NOTE: you can implement Posix ACLs without these helpers (XFS does).
170 # Never use this symbol for ifdefs.
176 bool "Enable POSIX file locking API" if EMBEDDED
179 This option enables standard file locking support, required
180 for filesystems like NFS and for the flock() system
181 call. Disabling this option saves about 11k.
183 source "fs/xfs/Kconfig"
184 source "fs/gfs2/Kconfig"
187 tristate "OCFS2 file system support"
188 depends on NET && SYSFS
193 OCFS2 is a general purpose extent based shared disk cluster file
194 system with many similarities to ext3. It supports 64 bit inode
195 numbers, and has automatically extending metadata groups which may
196 also make it attractive for non-clustered use.
198 You'll want to install the ocfs2-tools package in order to at least
201 Project web page: http://oss.oracle.com/projects/ocfs2
202 Tools web page: http://oss.oracle.com/projects/ocfs2-tools
203 OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/
205 For more information on OCFS2, see the file
206 <file:Documentation/filesystems/ocfs2.txt>.
209 tristate "O2CB Kernelspace Clustering"
213 OCFS2 includes a simple kernelspace clustering package, the OCFS2
214 Cluster Base. It only requires a very small userspace component
215 to configure it. This comes with the standard ocfs2-tools package.
216 O2CB is limited to maintaining a cluster for OCFS2 file systems.
217 It cannot manage any other cluster applications.
219 It is always safe to say Y here, as the clustering method is
222 config OCFS2_FS_USERSPACE_CLUSTER
223 tristate "OCFS2 Userspace Clustering"
224 depends on OCFS2_FS && DLM
227 This option will allow OCFS2 to use userspace clustering services
228 in conjunction with the DLM in fs/dlm. If you are using a
229 userspace cluster manager, say Y here.
231 It is safe to say Y, as the clustering method is run-time
234 config OCFS2_FS_STATS
235 bool "OCFS2 statistics"
239 This option allows some fs statistics to be captured. Enabling
240 this option may increase the memory consumption.
242 config OCFS2_DEBUG_MASKLOG
243 bool "OCFS2 logging support"
247 The ocfs2 filesystem has an extensive logging system. The system
248 allows selection of events to log via files in /sys/o2cb/logmask/.
249 This option will enlarge your kernel, but it allows debugging of
250 ocfs2 filesystem issues.
252 config OCFS2_DEBUG_FS
253 bool "OCFS2 expensive checks"
257 This option will enable expensive consistency checks. Enable
258 this option for debugging only as it is likely to decrease
259 performance of the filesystem.
261 config OCFS2_COMPAT_JBD
262 bool "Use JBD for compatibility"
267 The ocfs2 filesystem now uses JBD2 for its journalling. JBD2
268 is backwards compatible with JBD. It is safe to say N here.
269 However, if you really want to use the original JBD, say Y here.
274 bool "Dnotify support"
277 Dnotify is a directory-based per-fd file change notification system
278 that uses signals to communicate events to user-space. There exist
279 superior alternatives, but some applications may still rely on
285 bool "Inotify file change notification support"
288 Say Y here to enable inotify support. Inotify is a file change
289 notification system and a replacement for dnotify. Inotify fixes
290 numerous shortcomings in dnotify and introduces several new features
291 including multiple file events, one-shot support, and unmount
294 For more information, see <file:Documentation/filesystems/inotify.txt>
299 bool "Inotify support for userspace"
303 Say Y here to enable inotify support for userspace, including the
304 associated system calls. Inotify allows monitoring of both files and
305 directories via a single open fd. Events are read from the file
306 descriptor, which is also select()- and poll()-able.
308 For more information, see <file:Documentation/filesystems/inotify.txt>
315 If you say Y here, you will be able to set per user limits for disk
316 usage (also called disk quotas). Currently, it works for the
317 ext2, ext3, and reiserfs file system. ext3 also supports journalled
318 quotas for which you don't need to run quotacheck(8) after an unclean
320 For further details, read the Quota mini-HOWTO, available from
321 <http://www.tldp.org/docs.html#howto>, or the documentation provided
322 with the quota tools. Probably the quota support is only useful for
323 multi user systems. If unsure, say N.
325 config QUOTA_NETLINK_INTERFACE
326 bool "Report quota messages through netlink interface"
327 depends on QUOTA && NET
329 If you say Y here, quota warnings (about exceeding softlimit, reaching
330 hardlimit, etc.) will be reported through netlink interface. If unsure,
333 config PRINT_QUOTA_WARNING
334 bool "Print quota warnings to console (OBSOLETE)"
338 If you say Y here, quota warnings (about exceeding softlimit, reaching
339 hardlimit, etc.) will be printed to the process' controlling terminal.
340 Note that this behavior is currently deprecated and may go away in
341 future. Please use notification via netlink socket instead.
344 tristate "Old quota format support"
347 This quota format was (is) used by kernels earlier than 2.4.22. If
348 you have quota working and you don't want to convert to new quota
352 tristate "Quota format v2 support"
355 This quota format allows using quotas with 32-bit UIDs/GIDs. If you
356 need this functionality say Y here.
360 depends on XFS_QUOTA || QUOTA
364 tristate "Kernel automounter support"
366 The automounter is a tool to automatically mount remote file systems
367 on demand. This implementation is partially kernel-based to reduce
368 overhead in the already-mounted case; this is unlike the BSD
369 automounter (amd), which is a pure user space daemon.
371 To use the automounter you need the user-space tools from the autofs
372 package; you can find the location in <file:Documentation/Changes>.
373 You also want to answer Y to "NFS file system support", below.
375 If you want to use the newer version of the automounter with more
376 features, say N here and say Y to "Kernel automounter v4 support",
379 To compile this support as a module, choose M here: the module will be
382 If you are not a part of a fairly large, distributed network, you
383 probably do not need an automounter, and can say N here.
386 tristate "Kernel automounter version 4 support (also supports v3)"
388 The automounter is a tool to automatically mount remote file systems
389 on demand. This implementation is partially kernel-based to reduce
390 overhead in the already-mounted case; this is unlike the BSD
391 automounter (amd), which is a pure user space daemon.
393 To use the automounter you need the user-space tools from
394 <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
395 want to answer Y to "NFS file system support", below.
397 To compile this support as a module, choose M here: the module will be
398 called autofs4. You will need to add "alias autofs autofs4" to your
399 modules configuration file.
401 If you are not a part of a fairly large, distributed network or
402 don't have a laptop which needs to dynamically reconfigure to the
403 local network, you probably do not need an automounter, and can say
407 tristate "FUSE (Filesystem in Userspace) support"
409 With FUSE it is possible to implement a fully functional filesystem
410 in a userspace program.
412 There's also companion library: libfuse. This library along with
413 utilities is available from the FUSE homepage:
414 <http://fuse.sourceforge.net/>
416 See <file:Documentation/filesystems/fuse.txt> for more information.
417 See <file:Documentation/Changes> for needed library/utility version.
419 If you want to develop a userspace FS, or if you want to use
420 a filesystem based on FUSE, answer Y or M.
427 menu "CD-ROM/DVD Filesystems"
430 tristate "ISO 9660 CDROM file system support"
432 This is the standard file system used on CD-ROMs. It was previously
433 known as "High Sierra File System" and is called "hsfs" on other
434 Unix systems. The so-called Rock-Ridge extensions which allow for
435 long Unix filenames and symbolic links are also supported by this
436 driver. If you have a CD-ROM drive and want to do more with it than
437 just listen to audio CDs and watch its LEDs, say Y (and read
438 <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO,
439 available from <http://www.tldp.org/docs.html#howto>), thereby
440 enlarging your kernel by about 27 KB; otherwise say N.
442 To compile this file system support as a module, choose M here: the
443 module will be called isofs.
446 bool "Microsoft Joliet CDROM extensions"
447 depends on ISO9660_FS
450 Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
451 which allows for long filenames in unicode format (unicode is the
452 new 16 bit character code, successor to ASCII, which encodes the
453 characters of almost all languages of the world; see
454 <http://www.unicode.org/> for more information). Say Y here if you
455 want to be able to read Joliet CD-ROMs under Linux.
458 bool "Transparent decompression extension"
459 depends on ISO9660_FS
462 This is a Linux-specific extension to RockRidge which lets you store
463 data in compressed form on a CD-ROM and have it transparently
464 decompressed when the CD-ROM is accessed. See
465 <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
466 necessary to create such a filesystem. Say Y here if you want to be
467 able to read such compressed CD-ROMs.
470 tristate "UDF file system support"
473 This is the new file system used on some CD-ROMs and DVDs. Say Y if
474 you intend to mount DVD discs or CDRW's written in packet mode, or
475 if written to by other UDF utilities, such as DirectCD.
476 Please read <file:Documentation/filesystems/udf.txt>.
478 To compile this file system support as a module, choose M here: the
479 module will be called udf.
486 depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y)
492 menu "DOS/FAT/NT Filesystems"
498 If you want to use one of the FAT-based file systems (the MS-DOS and
499 VFAT (Windows 95) file systems), then you must say Y or M here
500 to include FAT support. You will then be able to mount partitions or
501 diskettes with FAT-based file systems and transparently access the
502 files on them, i.e. MSDOS files will look and behave just like all
505 This FAT support is not a file system in itself, it only provides
506 the foundation for the other file systems. You will have to say Y or
507 M to at least one of "MSDOS fs support" or "VFAT fs support" in
508 order to make use of it.
510 Another way to read and write MSDOS floppies and hard drive
511 partitions from within Linux (but not transparently) is with the
512 mtools ("man mtools") program suite. You don't need to say Y here in
515 If you need to move large files on floppies between a DOS and a
516 Linux box, say Y here, mount the floppy under Linux with an MSDOS
517 file system and use GNU tar's M option. GNU tar is a program
518 available for Unix and DOS ("man tar" or "info tar").
520 The FAT support will enlarge your kernel by about 37 KB. If unsure,
523 To compile this as a module, choose M here: the module will be called
524 fat. Note that if you compile the FAT support as a module, you
525 cannot compile any of the FAT-based file systems into the kernel
526 -- they will have to be modules as well.
529 tristate "MSDOS fs support"
532 This allows you to mount MSDOS partitions of your hard drive (unless
533 they are compressed; to access compressed MSDOS partitions under
534 Linux, you can either use the DOS emulator DOSEMU, described in the
535 DOSEMU-HOWTO, available from
536 <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in
537 <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you
538 intend to use dosemu with a non-compressed MSDOS partition, say Y
539 here) and MSDOS floppies. This means that file access becomes
540 transparent, i.e. the MSDOS files look and behave just like all
543 If you have Windows 95 or Windows NT installed on your MSDOS
544 partitions, you should use the VFAT file system (say Y to "VFAT fs
545 support" below), or you will not be able to see the long filenames
546 generated by Windows 95 / Windows NT.
548 This option will enlarge your kernel by about 7 KB. If unsure,
549 answer Y. This will only work if you said Y to "DOS FAT fs support"
550 as well. To compile this as a module, choose M here: the module will
554 tristate "VFAT (Windows-95) fs support"
557 This option provides support for normal Windows file systems with
558 long filenames. That includes non-compressed FAT-based file systems
559 used by Windows 95, Windows 98, Windows NT 4.0, and the Unix
560 programs from the mtools package.
562 The VFAT support enlarges your kernel by about 10 KB and it only
563 works if you said Y to the "DOS FAT fs support" above. Please read
564 the file <file:Documentation/filesystems/vfat.txt> for details. If
567 To compile this as a module, choose M here: the module will be called
570 config FAT_DEFAULT_CODEPAGE
571 int "Default codepage for FAT"
572 depends on MSDOS_FS || VFAT_FS
575 This option should be set to the codepage of your FAT filesystems.
576 It can be overridden with the "codepage" mount option.
577 See <file:Documentation/filesystems/vfat.txt> for more information.
579 config FAT_DEFAULT_IOCHARSET
580 string "Default iocharset for FAT"
584 Set this to the default input/output character set you'd
585 like FAT to use. It should probably match the character set
586 that most of your FAT filesystems use, and can be overridden
587 with the "iocharset" mount option for FAT filesystems.
588 Note that "utf8" is not recommended for FAT filesystems.
589 If unsure, you shouldn't set "utf8" here.
590 See <file:Documentation/filesystems/vfat.txt> for more information.
593 tristate "NTFS file system support"
596 NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003.
598 Saying Y or M here enables read support. There is partial, but
599 safe, write support available. For write support you must also
600 say Y to "NTFS write support" below.
602 There are also a number of user-space tools available, called
603 ntfsprogs. These include ntfsundelete and ntfsresize, that work
604 without NTFS support enabled in the kernel.
606 This is a rewrite from scratch of Linux NTFS support and replaced
607 the old NTFS code starting with Linux 2.5.11. A backport to
608 the Linux 2.4 kernel series is separately available as a patch
609 from the project web site.
611 For more information see <file:Documentation/filesystems/ntfs.txt>
612 and <http://www.linux-ntfs.org/>.
614 To compile this file system support as a module, choose M here: the
615 module will be called ntfs.
617 If you are not using Windows NT, 2000, XP or 2003 in addition to
618 Linux on your computer it is safe to say N.
621 bool "NTFS debugging support"
624 If you are experiencing any problems with the NTFS file system, say
625 Y here. This will result in additional consistency checks to be
626 performed by the driver as well as additional debugging messages to
627 be written to the system log. Note that debugging messages are
628 disabled by default. To enable them, supply the option debug_msgs=1
629 at the kernel command line when booting the kernel or as an option
630 to insmod when loading the ntfs module. Once the driver is active,
631 you can enable debugging messages by doing (as root):
632 echo 1 > /proc/sys/fs/ntfs-debug
633 Replacing the "1" with "0" would disable debug messages.
635 If you leave debugging messages disabled, this results in little
636 overhead, but enabling debug messages results in very significant
637 slowdown of the system.
639 When reporting bugs, please try to have available a full dump of
640 debugging messages while the misbehaviour was occurring.
643 bool "NTFS write support"
646 This enables the partial, but safe, write support in the NTFS driver.
648 The only supported operation is overwriting existing files, without
649 changing the file length. No file or directory creation, deletion or
650 renaming is possible. Note only non-resident files can be written to
651 so you may find that some very small files (<500 bytes or so) cannot
654 While we cannot guarantee that it will not damage any data, we have
655 so far not received a single report where the driver would have
656 damaged someones data so we assume it is perfectly safe to use.
658 Note: While write support is safe in this version (a rewrite from
659 scratch of the NTFS support), it should be noted that the old NTFS
660 write support, included in Linux 2.5.10 and before (since 1997),
663 This is currently useful with TopologiLinux. TopologiLinux is run
664 on top of any DOS/Microsoft Windows system without partitioning your
665 hard disk. Unlike other Linux distributions TopologiLinux does not
666 need its own partition. For more information see
667 <http://topologi-linux.sourceforge.net/>
669 It is perfectly safe to say N here.
674 menu "Pseudo filesystems"
676 source "fs/proc/Kconfig"
679 bool "sysfs file system support" if EMBEDDED
682 The sysfs filesystem is a virtual filesystem that the kernel uses to
683 export internal kernel objects, their attributes, and their
684 relationships to one another.
686 Users can use sysfs to ascertain useful information about the running
687 kernel, such as the devices the kernel has discovered on each bus and
688 which driver each is bound to. sysfs can also be used to tune devices
689 and other kernel subsystems.
691 Some system agents rely on the information in sysfs to operate.
692 /sbin/hotplug uses device and object attributes in sysfs to assist in
693 delegating policy decisions, like persistently naming devices.
695 sysfs is currently used by the block subsystem to mount the root
696 partition. If sysfs is disabled you must specify the boot device on
697 the kernel boot command line via its major and minor numbers. For
698 example, "root=03:01" for /dev/hda1.
700 Designers of embedded systems may wish to say N here to conserve space.
703 bool "Virtual memory file system support (former shm fs)"
705 Tmpfs is a file system which keeps all files in virtual memory.
707 Everything in tmpfs is temporary in the sense that no files will be
708 created on your hard drive. The files live in memory and swap
709 space. If you unmount a tmpfs instance, everything stored therein is
712 See <file:Documentation/filesystems/tmpfs.txt> for details.
714 config TMPFS_POSIX_ACL
715 bool "Tmpfs POSIX Access Control Lists"
719 POSIX Access Control Lists (ACLs) support permissions for users and
720 groups beyond the owner/group/world scheme.
722 To learn more about Access Control Lists, visit the POSIX ACLs for
723 Linux website <http://acl.bestbits.at/>.
725 If you don't know what Access Control Lists are, say N.
728 bool "HugeTLB file system support"
729 depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || \
730 (S390 && 64BIT) || BROKEN
732 hugetlbfs is a filesystem backing for HugeTLB pages, based on
733 ramfs. For architectures that support it, say Y here and read
734 <file:Documentation/vm/hugetlbpage.txt> for details.
742 tristate "Userspace-driven configuration filesystem"
745 configfs is a ram-based filesystem that provides the converse
746 of sysfs's functionality. Where sysfs is a filesystem-based
747 view of kernel objects, configfs is a filesystem-based manager
748 of kernel objects, or config_items.
750 Both sysfs and configfs can and should exist together on the
751 same system. One is not a replacement for the other.
755 menu "Miscellaneous filesystems"
758 tristate "ADFS file system support (EXPERIMENTAL)"
759 depends on BLOCK && EXPERIMENTAL
761 The Acorn Disc Filing System is the standard file system of the
762 RiscOS operating system which runs on Acorn's ARM-based Risc PC
763 systems and the Acorn Archimedes range of machines. If you say Y
764 here, Linux will be able to read from ADFS partitions on hard drives
765 and from ADFS-formatted floppy discs. If you also want to be able to
766 write to those devices, say Y to "ADFS write support" below.
768 The ADFS partition should be the first partition (i.e.,
769 /dev/[hs]d?1) on each of your drives. Please read the file
770 <file:Documentation/filesystems/adfs.txt> for further details.
772 To compile this code as a module, choose M here: the module will be
778 bool "ADFS write support (DANGEROUS)"
781 If you say Y here, you will be able to write to ADFS partitions on
782 hard drives and ADFS-formatted floppy disks. This is experimental
783 codes, so if you're unsure, say N.
786 tristate "Amiga FFS file system support (EXPERIMENTAL)"
787 depends on BLOCK && EXPERIMENTAL
789 The Fast File System (FFS) is the common file system used on hard
790 disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y
791 if you want to be able to read and write files from and to an Amiga
792 FFS partition on your hard drive. Amiga floppies however cannot be
793 read with this driver due to an incompatibility of the floppy
794 controller used in an Amiga and the standard floppy controller in
795 PCs and workstations. Read <file:Documentation/filesystems/affs.txt>
796 and <file:fs/affs/Changes>.
798 With this driver you can also mount disk files used by Bernd
799 Schmidt's Un*X Amiga Emulator
800 (<http://www.freiburg.linux.de/~uae/>).
801 If you want to do this, you will also need to say Y or M to "Loop
802 device support", above.
804 To compile this file system support as a module, choose M here: the
805 module will be called affs. If unsure, say N.
808 tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
809 depends on EXPERIMENTAL && KEYS && CRYPTO && NET
811 Encrypted filesystem that operates on the VFS layer. See
812 <file:Documentation/filesystems/ecryptfs.txt> to learn more about
813 eCryptfs. Userspace components are required and can be
814 obtained from <http://ecryptfs.sf.net>.
816 To compile this file system support as a module, choose M here: the
817 module will be called ecryptfs.
820 tristate "Apple Macintosh file system support (EXPERIMENTAL)"
821 depends on BLOCK && EXPERIMENTAL
824 If you say Y here, you will be able to mount Macintosh-formatted
825 floppy disks and hard drive partitions with full read-write access.
826 Please read <file:Documentation/filesystems/hfs.txt> to learn about
827 the available mount options.
829 To compile this file system support as a module, choose M here: the
830 module will be called hfs.
833 tristate "Apple Extended HFS file system support"
838 If you say Y here, you will be able to mount extended format
839 Macintosh-formatted hard drive partitions with full read-write access.
841 This file system is often called HFS+ and was introduced with
842 MacOS 8. It includes all Mac specific filesystem data such as
843 data forks and creator codes, but it also has several UNIX
844 style features such as file ownership and permissions.
847 tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)"
848 depends on BLOCK && EXPERIMENTAL
851 The BeOS File System (BeFS) is the native file system of Be, Inc's
852 BeOS. Notable features include support for arbitrary attributes
853 on files and directories, and database-like indices on selected
854 attributes. (Also note that this driver doesn't make those features
855 available at this time). It is a 64 bit filesystem, so it supports
856 extremely large volumes and files.
858 If you use this filesystem, you should also say Y to at least one
859 of the NLS (native language support) options below.
861 If you don't know what this is about, say N.
863 To compile this as a module, choose M here: the module will be
870 If you say Y here, you can use the 'debug' mount option to enable
871 debugging output from the driver.
874 tristate "BFS file system support (EXPERIMENTAL)"
875 depends on BLOCK && EXPERIMENTAL
877 Boot File System (BFS) is a file system used under SCO UnixWare to
878 allow the bootloader access to the kernel image and other important
879 files during the boot process. It is usually mounted under /stand
880 and corresponds to the slice marked as "STAND" in the UnixWare
881 partition. You should say Y if you want to read or write the files
882 on your /stand slice from within Linux. You then also need to say Y
883 to "UnixWare slices support", below. More information about the BFS
884 file system is contained in the file
885 <file:Documentation/filesystems/bfs.txt>.
887 If you don't know what this is about, say N.
889 To compile this as a module, choose M here: the module will be called
890 bfs. Note that the file system of your root partition (the one
891 containing the directory /) cannot be compiled as a module.
896 tristate "EFS file system support (read only) (EXPERIMENTAL)"
897 depends on BLOCK && EXPERIMENTAL
899 EFS is an older file system used for non-ISO9660 CD-ROMs and hard
900 disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
901 uses the XFS file system for hard disk partitions however).
903 This implementation only offers read-only access. If you don't know
904 what all this is about, it's safe to say N. For more information
905 about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
907 To compile the EFS file system support as a module, choose M here: the
908 module will be called efs.
910 source "fs/jffs2/Kconfig"
911 # UBIFS File system configuration
912 source "fs/ubifs/Kconfig"
915 tristate "Compressed ROM file system support (cramfs)"
919 Saying Y here includes support for CramFs (Compressed ROM File
920 System). CramFs is designed to be a simple, small, and compressed
921 file system for ROM based embedded systems. CramFs is read-only,
922 limited to 256MB file systems (with 16MB files), and doesn't support
923 16/32 bits uid/gid, hard links and timestamps.
925 See <file:Documentation/filesystems/cramfs.txt> and
926 <file:fs/cramfs/README> for further information.
928 To compile this as a module, choose M here: the module will be called
929 cramfs. Note that the root file system (the one containing the
930 directory /) cannot be compiled as a module.
935 tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)"
938 FreeVxFS is a file system driver that support the VERITAS VxFS(TM)
939 file system format. VERITAS VxFS(TM) is the standard file system
940 of SCO UnixWare (and possibly others) and optionally available
941 for Sunsoft Solaris, HP-UX and many other operating systems.
942 Currently only readonly access is supported.
944 NOTE: the file system type as used by mount(1), mount(2) and
945 fstab(5) is 'vxfs' as it describes the file system format, not
948 To compile this as a module, choose M here: the module will be
949 called freevxfs. If unsure, say N.
952 tristate "Minix file system support"
955 Minix is a simple operating system used in many classes about OS's.
956 The minix file system (method to organize files on a hard disk
957 partition or a floppy disk) was the original file system for Linux,
958 but has been superseded by the second extended file system ext2fs.
959 You don't want to use the minix file system on your hard disk
960 because of certain built-in restrictions, but it is sometimes found
961 on older Linux floppy disks. This option will enlarge your kernel
962 by about 28 KB. If unsure, say N.
964 To compile this file system support as a module, choose M here: the
965 module will be called minix. Note that the file system of your root
966 partition (the one containing the directory /) cannot be compiled as
970 tristate "SonicBlue Optimized MPEG File System support"
974 This is the proprietary file system used by the Rio Karma music
975 player and ReplayTV DVR. Despite the name, this filesystem is not
976 more efficient than a standard FS for MPEG files, in fact likely
977 the opposite is true. Say Y if you have either of these devices
978 and wish to mount its disk.
980 To compile this file system support as a module, choose M here: the
981 module will be called omfs. If unsure, say N.
984 tristate "OS/2 HPFS file system support"
987 OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
988 is the file system used for organizing files on OS/2 hard disk
989 partitions. Say Y if you want to be able to read files from and
990 write files to an OS/2 HPFS partition on your hard drive. OS/2
991 floppies however are in regular MSDOS format, so you don't need this
992 option in order to be able to read them. Read
993 <file:Documentation/filesystems/hpfs.txt>.
995 To compile this file system support as a module, choose M here: the
996 module will be called hpfs. If unsure, say N.
1000 tristate "QNX4 file system support (read only)"
1003 This is the file system used by the real-time operating systems
1004 QNX 4 and QNX 6 (the latter is also called QNX RTP).
1005 Further information is available at <http://www.qnx.com/>.
1006 Say Y if you intend to mount QNX hard disks or floppies.
1007 Unless you say Y to "QNX4FS read-write support" below, you will
1008 only be able to read these file systems.
1010 To compile this file system support as a module, choose M here: the
1011 module will be called qnx4.
1013 If you don't know whether you need it, then you don't need it:
1017 bool "QNX4FS write support (DANGEROUS)"
1018 depends on QNX4FS_FS && EXPERIMENTAL && BROKEN
1020 Say Y if you want to test write support for QNX4 file systems.
1022 It's currently broken, so for now:
1026 tristate "ROM file system support"
1029 This is a very small read-only file system mainly intended for
1030 initial ram disks of installation disks, but it could be used for
1031 other read-only media as well. Read
1032 <file:Documentation/filesystems/romfs.txt> for details.
1034 To compile this file system support as a module, choose M here: the
1035 module will be called romfs. Note that the file system of your
1036 root partition (the one containing the directory /) cannot be a
1039 If you don't know whether you need it, then you don't need it:
1044 tristate "System V/Xenix/V7/Coherent file system support"
1047 SCO, Xenix and Coherent are commercial Unix systems for Intel
1048 machines, and Version 7 was used on the DEC PDP-11. Saying Y
1049 here would allow you to read from their floppies and hard disk
1052 If you have floppies or hard disk partitions like that, it is likely
1053 that they contain binaries from those other Unix systems; in order
1054 to run these binaries, you will want to install linux-abi which is
1055 a set of kernel modules that lets you run SCO, Xenix, Wyse,
1056 UnixWare, Dell Unix and System V programs under Linux. It is
1057 available via FTP (user: ftp) from
1058 <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>).
1059 NOTE: that will work only for binaries from Intel-based systems;
1060 PDP ones will have to wait until somebody ports Linux to -11 ;-)
1062 If you only intend to mount files from some other Unix over the
1063 network using NFS, you don't need the System V file system support
1064 (but you need NFS file system support obviously).
1066 Note that this option is generally not needed for floppies, since a
1067 good portable way to transport files and directories between unixes
1068 (and even other operating systems) is given by the tar program ("man
1069 tar" or preferably "info tar"). Note also that this option has
1070 nothing whatsoever to do with the option "System V IPC". Read about
1071 the System V file system in
1072 <file:Documentation/filesystems/sysv-fs.txt>.
1073 Saying Y here will enlarge your kernel by about 27 KB.
1075 To compile this as a module, choose M here: the module will be called
1078 If you haven't heard about all of this before, it's safe to say N.
1082 tristate "UFS file system support (read only)"
1085 BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
1086 OpenBSD and NeXTstep) use a file system called UFS. Some System V
1087 Unixes can create and mount hard disk partitions and diskettes using
1088 this file system as well. Saying Y here will allow you to read from
1089 these partitions; if you also want to write to them, say Y to the
1090 experimental "UFS file system write support", below. Please read the
1091 file <file:Documentation/filesystems/ufs.txt> for more information.
1093 The recently released UFS2 variant (used in FreeBSD 5.x) is
1094 READ-ONLY supported.
1096 Note that this option is generally not needed for floppies, since a
1097 good portable way to transport files and directories between unixes
1098 (and even other operating systems) is given by the tar program ("man
1099 tar" or preferably "info tar").
1101 When accessing NeXTstep files, you may need to convert them from the
1102 NeXT character set to the Latin1 character set; use the program
1103 recode ("info recode") for this purpose.
1105 To compile the UFS file system support as a module, choose M here: the
1106 module will be called ufs.
1108 If you haven't heard about all of this before, it's safe to say N.
1111 bool "UFS file system write support (DANGEROUS)"
1112 depends on UFS_FS && EXPERIMENTAL
1114 Say Y here if you want to try writing to UFS partitions. This is
1115 experimental, so you should back up your UFS partitions beforehand.
1118 bool "UFS debugging"
1121 If you are experiencing any problems with the UFS filesystem, say
1122 Y here. This will result in _many_ additional debugging messages to be
1123 written to the system log.
1127 menuconfig NETWORK_FILESYSTEMS
1128 bool "Network File Systems"
1132 Say Y here to get to see options for network filesystems and
1133 filesystem-related networking code, such as NFS daemon and
1134 RPCSEC security modules.
1136 This option alone does not add any kernel code.
1138 If you say N, all options in this submenu will be skipped and
1139 disabled; if unsure, say Y here.
1141 if NETWORK_FILESYSTEMS
1144 tristate "NFS client support"
1148 select NFS_ACL_SUPPORT if NFS_V3_ACL
1150 Choose Y here if you want to access files residing on other
1151 computers using Sun's Network File System protocol. To compile
1152 this file system support as a module, choose M here: the module
1155 To mount file systems exported by NFS servers, you also need to
1156 install the user space mount.nfs command which can be found in
1157 the Linux nfs-utils package, available from http://linux-nfs.org/.
1158 Information about using the mount command is available in the
1159 mount(8) man page. More detail about the Linux NFS client
1160 implementation is available via the nfs(5) man page.
1162 Below you can choose which versions of the NFS protocol are
1163 available in the kernel to mount NFS servers. Support for NFS
1164 version 2 (RFC 1094) is always available when NFS_FS is selected.
1166 To configure a system which mounts its root file system via NFS
1167 at boot time, say Y here, select "Kernel level IP
1168 autoconfiguration" in the NETWORK menu, and select "Root file
1169 system on NFS" below. You cannot compile this file system as a
1170 module in this case.
1175 bool "NFS client support for NFS version 3"
1178 This option enables support for version 3 of the NFS protocol
1179 (RFC 1813) in the kernel's NFS client.
1184 bool "NFS client support for the NFSv3 ACL protocol extension"
1187 Some NFS servers support an auxiliary NFSv3 ACL protocol that
1188 Sun added to Solaris but never became an official part of the
1189 NFS version 3 protocol. This protocol extension allows
1190 applications on NFS clients to manipulate POSIX Access Control
1191 Lists on files residing on NFS servers. NFS servers enforce
1192 ACLs on local files whether this protocol is available or not.
1194 Choose Y here if your NFS server supports the Solaris NFSv3 ACL
1195 protocol extension and you want your NFS client to allow
1196 applications to access and modify ACLs on files on the server.
1198 Most NFS servers don't support the Solaris NFSv3 ACL protocol
1199 extension. You can choose N here or specify the "noacl" mount
1200 option to prevent your NFS client from trying to use the NFSv3
1206 bool "NFS client support for NFS version 4 (EXPERIMENTAL)"
1207 depends on NFS_FS && EXPERIMENTAL
1208 select RPCSEC_GSS_KRB5
1210 This option enables support for version 4 of the NFS protocol
1211 (RFC 3530) in the kernel's NFS client.
1213 To mount NFS servers using NFSv4, you also need to install user
1214 space programs which can be found in the Linux nfs-utils package,
1215 available from http://linux-nfs.org/.
1220 bool "Root file system on NFS"
1221 depends on NFS_FS=y && IP_PNP
1223 If you want your system to mount its root file system via NFS,
1224 choose Y here. This is common practice for managing systems
1225 without local permanent storage. For details, read
1226 <file:Documentation/filesystems/nfsroot.txt>.
1228 Most people say N here.
1231 tristate "NFS server support"
1236 select NFS_ACL_SUPPORT if NFSD_V2_ACL
1238 Choose Y here if you want to allow other computers to access
1239 files residing on this system using Sun's Network File System
1240 protocol. To compile the NFS server support as a module,
1241 choose M here: the module will be called nfsd.
1243 You may choose to use a user-space NFS server instead, in which
1244 case you can choose N here.
1246 To export local file systems using NFS, you also need to install
1247 user space programs which can be found in the Linux nfs-utils
1248 package, available from http://linux-nfs.org/. More detail about
1249 the Linux NFS server implementation is available via the
1250 exports(5) man page.
1252 Below you can choose which versions of the NFS protocol are
1253 available to clients mounting the NFS server on this system.
1254 Support for NFS version 2 (RFC 1094) is always available when
1255 CONFIG_NFSD is selected.
1264 bool "NFS server support for NFS version 3"
1267 This option enables support in your system's NFS server for
1268 version 3 of the NFS protocol (RFC 1813).
1273 bool "NFS server support for the NFSv3 ACL protocol extension"
1277 Solaris NFS servers support an auxiliary NFSv3 ACL protocol that
1278 never became an official part of the NFS version 3 protocol.
1279 This protocol extension allows applications on NFS clients to
1280 manipulate POSIX Access Control Lists on files residing on NFS
1281 servers. NFS servers enforce POSIX ACLs on local files whether
1282 this protocol is available or not.
1284 This option enables support in your system's NFS server for the
1285 NFSv3 ACL protocol extension allowing NFS clients to manipulate
1286 POSIX ACLs on files exported by your system's NFS server. NFS
1287 clients which support the Solaris NFSv3 ACL protocol can then
1288 access and modify ACLs on your NFS server.
1290 To store ACLs on your NFS server, you also need to enable ACL-
1291 related CONFIG options for your local file systems of choice.
1296 bool "NFS server support for NFS version 4 (EXPERIMENTAL)"
1297 depends on NFSD && PROC_FS && EXPERIMENTAL
1300 select RPCSEC_GSS_KRB5
1302 This option enables support in your system's NFS server for
1303 version 4 of the NFS protocol (RFC 3530).
1305 To export files using NFSv4, you need to install additional user
1306 space programs which can be found in the Linux nfs-utils package,
1307 available from http://linux-nfs.org/.
1316 depends on NFSD_V3 || NFS_V3
1322 config NFS_ACL_SUPPORT
1328 depends on NFSD || NFS_FS
1337 config SUNRPC_XPRT_RDMA
1339 depends on SUNRPC && INFINIBAND && EXPERIMENTAL
1340 default SUNRPC && INFINIBAND
1342 This option enables an RPC client transport capability that
1343 allows the NFS client to mount servers via an RDMA-enabled
1346 To compile RPC client RDMA transport support as a module,
1347 choose M here: the module will be called xprtrdma.
1351 config SUNRPC_REGISTER_V4
1352 bool "Register local RPC services via rpcbind v4 (EXPERIMENTAL)"
1353 depends on SUNRPC && EXPERIMENTAL
1356 Sun added support for registering RPC services at an IPv6
1357 address by creating two new versions of the rpcbind protocol
1360 This option enables support in the kernel RPC server for
1361 registering kernel RPC services via version 4 of the rpcbind
1362 protocol. If you enable this option, you must run a portmapper
1363 daemon that supports rpcbind protocol version 4.
1365 Serving NFS over IPv6 from knfsd (the kernel's NFS server)
1366 requires that you enable this option and use a portmapper that
1367 supports rpcbind version 4.
1369 If unsure, say N to get traditional behavior (register kernel
1370 RPC services using only rpcbind version 2). Distributions
1371 using the legacy Linux portmapper daemon must say N here.
1373 config RPCSEC_GSS_KRB5
1374 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
1375 depends on SUNRPC && EXPERIMENTAL
1382 Choose Y here to enable Secure RPC using the Kerberos version 5
1383 GSS-API mechanism (RFC 1964).
1385 Secure RPC calls with Kerberos require an auxiliary user-space
1386 daemon which may be found in the Linux nfs-utils package
1387 available from http://linux-nfs.org/. In addition, user-space
1388 Kerberos support should be installed.
1392 config RPCSEC_GSS_SPKM3
1393 tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
1394 depends on SUNRPC && EXPERIMENTAL
1402 Choose Y here to enable Secure RPC using the SPKM3 public key
1403 GSS-API mechansim (RFC 2025).
1405 Secure RPC calls with SPKM3 require an auxiliary userspace
1406 daemon which may be found in the Linux nfs-utils package
1407 available from http://linux-nfs.org/.
1412 tristate "SMB file system support (OBSOLETE, please use CIFS)"
1416 SMB (Server Message Block) is the protocol Windows for Workgroups
1417 (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share
1418 files and printers over local networks. Saying Y here allows you to
1419 mount their file systems (often called "shares" in this context) and
1420 access them just like any other Unix directory. Currently, this
1421 works only if the Windows machines use TCP/IP as the underlying
1422 transport protocol, and not NetBEUI. For details, read
1423 <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO,
1424 available from <http://www.tldp.org/docs.html#howto>.
1426 Note: if you just want your box to act as an SMB *server* and make
1427 files and printing services available to Windows clients (which need
1428 to have a TCP/IP stack), you don't need to say Y here; you can use
1429 the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>)
1432 General information about how to connect Linux, Windows machines and
1433 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1435 To compile the SMB support as a module, choose M here:
1436 the module will be called smbfs. Most people say N, however.
1438 config SMB_NLS_DEFAULT
1439 bool "Use a default NLS"
1442 Enabling this will make smbfs use nls translations by default. You
1443 need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls
1444 settings and you need to give the default nls for the SMB server as
1445 CONFIG_SMB_NLS_REMOTE.
1447 The nls settings can be changed at mount time, if your smbmount
1448 supports that, using the codepage and iocharset parameters.
1450 smbmount from samba 2.2.0 or later supports this.
1452 config SMB_NLS_REMOTE
1453 string "Default Remote NLS Option"
1454 depends on SMB_NLS_DEFAULT
1457 This setting allows you to specify a default value for which
1458 codepage the server uses. If this field is left blank no
1459 translations will be done by default. The local codepage/charset
1460 default to CONFIG_NLS_DEFAULT.
1462 The nls settings can be changed at mount time, if your smbmount
1463 supports that, using the codepage and iocharset parameters.
1465 smbmount from samba 2.2.0 or later supports this.
1467 source "fs/cifs/Kconfig"
1470 tristate "NCP file system support (to mount NetWare volumes)"
1471 depends on IPX!=n || INET
1473 NCP (NetWare Core Protocol) is a protocol that runs over IPX and is
1474 used by Novell NetWare clients to talk to file servers. It is to
1475 IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you
1476 to mount NetWare file server volumes and to access them just like
1477 any other Unix directory. For details, please read the file
1478 <file:Documentation/filesystems/ncpfs.txt> in the kernel source and
1479 the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>.
1481 You do not have to say Y here if you want your Linux box to act as a
1482 file *server* for Novell NetWare clients.
1484 General information about how to connect Linux, Windows machines and
1485 Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>.
1487 To compile this as a module, choose M here: the module will be called
1488 ncpfs. Say N unless you are connected to a Novell network.
1490 source "fs/ncpfs/Kconfig"
1493 tristate "Coda file system support (advanced network fs)"
1496 Coda is an advanced network file system, similar to NFS in that it
1497 enables you to mount file systems of a remote server and access them
1498 with regular Unix commands as if they were sitting on your hard
1499 disk. Coda has several advantages over NFS: support for
1500 disconnected operation (e.g. for laptops), read/write server
1501 replication, security model for authentication and encryption,
1502 persistent client caches and write back caching.
1504 If you say Y here, your Linux box will be able to act as a Coda
1505 *client*. You will need user level code as well, both for the
1506 client and server. Servers are currently user level, i.e. they need
1507 no kernel support. Please read
1508 <file:Documentation/filesystems/coda.txt> and check out the Coda
1509 home page <http://www.coda.cs.cmu.edu/>.
1511 To compile the coda client support as a module, choose M here: the
1512 module will be called coda.
1515 tristate "Andrew File System support (AFS) (EXPERIMENTAL)"
1516 depends on INET && EXPERIMENTAL
1519 If you say Y here, you will get an experimental Andrew File System
1520 driver. It currently only supports unsecured read-only AFS access.
1522 See <file:Documentation/filesystems/afs.txt> for more information.
1527 bool "AFS dynamic debugging"
1530 Say Y here to make runtime controllable debugging messages appear.
1532 See <file:Documentation/filesystems/afs.txt> for more information.
1537 tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)"
1538 depends on INET && NET_9P && EXPERIMENTAL
1540 If you say Y here, you will get experimental support for
1541 Plan 9 resource sharing via the 9P2000 protocol.
1543 See <http://v9fs.sf.net> for more information.
1547 endif # NETWORK_FILESYSTEMS
1550 menu "Partition Types"
1552 source "fs/partitions/Kconfig"
1557 source "fs/nls/Kconfig"
1558 source "fs/dlm/Kconfig"