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1da177e4 LT |
1 | # |
2 | # File system configuration | |
3 | # | |
4 | ||
5 | menu "File systems" | |
6 | ||
7 | config EXT2_FS | |
8 | tristate "Second extended fs support" | |
9 | help | |
10 | Ext2 is a standard Linux file system for hard disks. | |
11 | ||
12 | To compile this file system support as a module, choose M here: the | |
13 | module will be called ext2. Be aware however that the file system | |
14 | of your root partition (the one containing the directory /) cannot | |
15 | be compiled as a module, and so this could be dangerous. | |
16 | ||
17 | If unsure, say Y. | |
18 | ||
19 | config EXT2_FS_XATTR | |
20 | bool "Ext2 extended attributes" | |
21 | depends on EXT2_FS | |
22 | help | |
23 | Extended attributes are name:value pairs associated with inodes by | |
24 | the kernel or by users (see the attr(5) manual page, or visit | |
25 | <http://acl.bestbits.at/> for details). | |
26 | ||
27 | If unsure, say N. | |
28 | ||
29 | config EXT2_FS_POSIX_ACL | |
30 | bool "Ext2 POSIX Access Control Lists" | |
31 | depends on EXT2_FS_XATTR | |
b84c2157 | 32 | select FS_POSIX_ACL |
1da177e4 LT |
33 | help |
34 | Posix Access Control Lists (ACLs) support permissions for users and | |
35 | groups beyond the owner/group/world scheme. | |
36 | ||
37 | To learn more about Access Control Lists, visit the Posix ACLs for | |
38 | Linux website <http://acl.bestbits.at/>. | |
39 | ||
40 | If you don't know what Access Control Lists are, say N | |
41 | ||
42 | config EXT2_FS_SECURITY | |
43 | bool "Ext2 Security Labels" | |
44 | depends on EXT2_FS_XATTR | |
45 | help | |
46 | Security labels support alternative access control models | |
47 | implemented by security modules like SELinux. This option | |
48 | enables an extended attribute handler for file security | |
49 | labels in the ext2 filesystem. | |
50 | ||
51 | If you are not using a security module that requires using | |
52 | extended attributes for file security labels, say N. | |
53 | ||
6d79125b CO |
54 | config EXT2_FS_XIP |
55 | bool "Ext2 execute in place support" | |
0c426f26 | 56 | depends on EXT2_FS && MMU |
6d79125b CO |
57 | help |
58 | Execute in place can be used on memory-backed block devices. If you | |
59 | enable this option, you can select to mount block devices which are | |
60 | capable of this feature without using the page cache. | |
61 | ||
62 | If you do not use a block device that is capable of using this, | |
63 | or if unsure, say N. | |
64 | ||
65 | config FS_XIP | |
66 | # execute in place | |
67 | bool | |
68 | depends on EXT2_FS_XIP | |
69 | default y | |
70 | ||
1da177e4 LT |
71 | config EXT3_FS |
72 | tristate "Ext3 journalling file system support" | |
b4e40a51 | 73 | select JBD |
1da177e4 LT |
74 | help |
75 | This is the journaling version of the Second extended file system | |
76 | (often called ext3), the de facto standard Linux file system | |
77 | (method to organize files on a storage device) for hard disks. | |
78 | ||
79 | The journaling code included in this driver means you do not have | |
80 | to run e2fsck (file system checker) on your file systems after a | |
81 | crash. The journal keeps track of any changes that were being made | |
82 | at the time the system crashed, and can ensure that your file system | |
83 | is consistent without the need for a lengthy check. | |
84 | ||
85 | Other than adding the journal to the file system, the on-disk format | |
86 | of ext3 is identical to ext2. It is possible to freely switch | |
87 | between using the ext3 driver and the ext2 driver, as long as the | |
88 | file system has been cleanly unmounted, or e2fsck is run on the file | |
89 | system. | |
90 | ||
91 | To add a journal on an existing ext2 file system or change the | |
92 | behavior of ext3 file systems, you can use the tune2fs utility ("man | |
93 | tune2fs"). To modify attributes of files and directories on ext3 | |
94 | file systems, use chattr ("man chattr"). You need to be using | |
95 | e2fsprogs version 1.20 or later in order to create ext3 journals | |
96 | (available at <http://sourceforge.net/projects/e2fsprogs/>). | |
97 | ||
98 | To compile this file system support as a module, choose M here: the | |
99 | module will be called ext3. Be aware however that the file system | |
100 | of your root partition (the one containing the directory /) cannot | |
101 | be compiled as a module, and so this may be dangerous. | |
102 | ||
103 | config EXT3_FS_XATTR | |
104 | bool "Ext3 extended attributes" | |
105 | depends on EXT3_FS | |
106 | default y | |
107 | help | |
108 | Extended attributes are name:value pairs associated with inodes by | |
109 | the kernel or by users (see the attr(5) manual page, or visit | |
110 | <http://acl.bestbits.at/> for details). | |
111 | ||
112 | If unsure, say N. | |
113 | ||
114 | You need this for POSIX ACL support on ext3. | |
115 | ||
116 | config EXT3_FS_POSIX_ACL | |
117 | bool "Ext3 POSIX Access Control Lists" | |
118 | depends on EXT3_FS_XATTR | |
b84c2157 | 119 | select FS_POSIX_ACL |
1da177e4 LT |
120 | help |
121 | Posix Access Control Lists (ACLs) support permissions for users and | |
122 | groups beyond the owner/group/world scheme. | |
123 | ||
124 | To learn more about Access Control Lists, visit the Posix ACLs for | |
125 | Linux website <http://acl.bestbits.at/>. | |
126 | ||
127 | If you don't know what Access Control Lists are, say N | |
128 | ||
129 | config EXT3_FS_SECURITY | |
130 | bool "Ext3 Security Labels" | |
131 | depends on EXT3_FS_XATTR | |
132 | help | |
133 | Security labels support alternative access control models | |
134 | implemented by security modules like SELinux. This option | |
135 | enables an extended attribute handler for file security | |
136 | labels in the ext3 filesystem. | |
137 | ||
138 | If you are not using a security module that requires using | |
139 | extended attributes for file security labels, say N. | |
140 | ||
141 | config JBD | |
1da177e4 | 142 | tristate |
1da177e4 LT |
143 | help |
144 | This is a generic journaling layer for block devices. It is | |
b4e40a51 MF |
145 | currently used by the ext3 and OCFS2 file systems, but it could |
146 | also be used to add journal support to other file systems or block | |
147 | devices such as RAID or LVM. | |
1da177e4 | 148 | |
b4e40a51 MF |
149 | If you are using the ext3 or OCFS2 file systems, you need to |
150 | say Y here. If you are not using ext3 OCFS2 then you will probably | |
151 | want to say N. | |
1da177e4 LT |
152 | |
153 | To compile this device as a module, choose M here: the module will be | |
b4e40a51 MF |
154 | called jbd. If you are compiling ext3 or OCFS2 into the kernel, |
155 | you cannot compile this code as a module. | |
1da177e4 LT |
156 | |
157 | config JBD_DEBUG | |
158 | bool "JBD (ext3) debugging support" | |
159 | depends on JBD | |
160 | help | |
161 | If you are using the ext3 journaled file system (or potentially any | |
162 | other file system/device using JBD), this option allows you to | |
163 | enable debugging output while the system is running, in order to | |
164 | help track down any problems you are having. By default the | |
165 | debugging output will be turned off. | |
166 | ||
167 | If you select Y here, then you will be able to turn on debugging | |
168 | with "echo N > /proc/sys/fs/jbd-debug", where N is a number between | |
169 | 1 and 5, the higher the number, the more debugging output is | |
170 | generated. To turn debugging off again, do | |
171 | "echo 0 > /proc/sys/fs/jbd-debug". | |
172 | ||
173 | config FS_MBCACHE | |
174 | # Meta block cache for Extended Attributes (ext2/ext3) | |
175 | tristate | |
176 | depends on EXT2_FS_XATTR || EXT3_FS_XATTR | |
177 | default y if EXT2_FS=y || EXT3_FS=y | |
178 | default m if EXT2_FS=m || EXT3_FS=m | |
179 | ||
180 | config REISERFS_FS | |
181 | tristate "Reiserfs support" | |
182 | help | |
183 | Stores not just filenames but the files themselves in a balanced | |
184 | tree. Uses journaling. | |
185 | ||
186 | Balanced trees are more efficient than traditional file system | |
187 | architectural foundations. | |
188 | ||
189 | In general, ReiserFS is as fast as ext2, but is very efficient with | |
190 | large directories and small files. Additional patches are needed | |
191 | for NFS and quotas, please see <http://www.namesys.com/> for links. | |
192 | ||
193 | It is more easily extended to have features currently found in | |
194 | database and keyword search systems than block allocation based file | |
195 | systems are. The next version will be so extended, and will support | |
196 | plugins consistent with our motto ``It takes more than a license to | |
197 | make source code open.'' | |
198 | ||
199 | Read <http://www.namesys.com/> to learn more about reiserfs. | |
200 | ||
201 | Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com. | |
202 | ||
203 | If you like it, you can pay us to add new features to it that you | |
204 | need, buy a support contract, or pay us to port it to another OS. | |
205 | ||
206 | config REISERFS_CHECK | |
207 | bool "Enable reiserfs debug mode" | |
208 | depends on REISERFS_FS | |
209 | help | |
210 | If you set this to Y, then ReiserFS will perform every check it can | |
211 | possibly imagine of its internal consistency throughout its | |
212 | operation. It will also go substantially slower. More than once we | |
213 | have forgotten that this was on, and then gone despondent over the | |
214 | latest benchmarks.:-) Use of this option allows our team to go all | |
215 | out in checking for consistency when debugging without fear of its | |
216 | effect on end users. If you are on the verge of sending in a bug | |
217 | report, say Y and you might get a useful error message. Almost | |
218 | everyone should say N. | |
219 | ||
220 | config REISERFS_PROC_INFO | |
221 | bool "Stats in /proc/fs/reiserfs" | |
222 | depends on REISERFS_FS | |
223 | help | |
224 | Create under /proc/fs/reiserfs a hierarchy of files, displaying | |
225 | various ReiserFS statistics and internal data at the expense of | |
226 | making your kernel or module slightly larger (+8 KB). This also | |
227 | increases the amount of kernel memory required for each mount. | |
228 | Almost everyone but ReiserFS developers and people fine-tuning | |
229 | reiserfs or tracing problems should say N. | |
230 | ||
231 | config REISERFS_FS_XATTR | |
232 | bool "ReiserFS extended attributes" | |
233 | depends on REISERFS_FS | |
234 | help | |
235 | Extended attributes are name:value pairs associated with inodes by | |
236 | the kernel or by users (see the attr(5) manual page, or visit | |
237 | <http://acl.bestbits.at/> for details). | |
238 | ||
239 | If unsure, say N. | |
240 | ||
241 | config REISERFS_FS_POSIX_ACL | |
242 | bool "ReiserFS POSIX Access Control Lists" | |
243 | depends on REISERFS_FS_XATTR | |
b84c2157 | 244 | select FS_POSIX_ACL |
1da177e4 LT |
245 | help |
246 | Posix Access Control Lists (ACLs) support permissions for users and | |
247 | groups beyond the owner/group/world scheme. | |
248 | ||
249 | To learn more about Access Control Lists, visit the Posix ACLs for | |
250 | Linux website <http://acl.bestbits.at/>. | |
251 | ||
252 | If you don't know what Access Control Lists are, say N | |
253 | ||
254 | config REISERFS_FS_SECURITY | |
255 | bool "ReiserFS Security Labels" | |
256 | depends on REISERFS_FS_XATTR | |
257 | help | |
258 | Security labels support alternative access control models | |
259 | implemented by security modules like SELinux. This option | |
260 | enables an extended attribute handler for file security | |
261 | labels in the ReiserFS filesystem. | |
262 | ||
263 | If you are not using a security module that requires using | |
264 | extended attributes for file security labels, say N. | |
265 | ||
266 | config JFS_FS | |
267 | tristate "JFS filesystem support" | |
268 | select NLS | |
269 | help | |
270 | This is a port of IBM's Journaled Filesystem . More information is | |
271 | available in the file <file:Documentation/filesystems/jfs.txt>. | |
272 | ||
273 | If you do not intend to use the JFS filesystem, say N. | |
274 | ||
275 | config JFS_POSIX_ACL | |
276 | bool "JFS POSIX Access Control Lists" | |
277 | depends on JFS_FS | |
b84c2157 | 278 | select FS_POSIX_ACL |
1da177e4 LT |
279 | help |
280 | Posix Access Control Lists (ACLs) support permissions for users and | |
281 | groups beyond the owner/group/world scheme. | |
282 | ||
283 | To learn more about Access Control Lists, visit the Posix ACLs for | |
284 | Linux website <http://acl.bestbits.at/>. | |
285 | ||
286 | If you don't know what Access Control Lists are, say N | |
287 | ||
288 | config JFS_SECURITY | |
289 | bool "JFS Security Labels" | |
290 | depends on JFS_FS | |
291 | help | |
292 | Security labels support alternative access control models | |
293 | implemented by security modules like SELinux. This option | |
294 | enables an extended attribute handler for file security | |
295 | labels in the jfs filesystem. | |
296 | ||
297 | If you are not using a security module that requires using | |
298 | extended attributes for file security labels, say N. | |
299 | ||
300 | config JFS_DEBUG | |
301 | bool "JFS debugging" | |
302 | depends on JFS_FS | |
303 | help | |
304 | If you are experiencing any problems with the JFS filesystem, say | |
305 | Y here. This will result in additional debugging messages to be | |
306 | written to the system log. Under normal circumstances, this | |
307 | results in very little overhead. | |
308 | ||
309 | config JFS_STATISTICS | |
310 | bool "JFS statistics" | |
311 | depends on JFS_FS | |
312 | help | |
313 | Enabling this option will cause statistics from the JFS file system | |
314 | to be made available to the user in the /proc/fs/jfs/ directory. | |
315 | ||
316 | config FS_POSIX_ACL | |
317 | # Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs) | |
318 | # | |
319 | # NOTE: you can implement Posix ACLs without these helpers (XFS does). | |
320 | # Never use this symbol for ifdefs. | |
321 | # | |
322 | bool | |
b84c2157 | 323 | default n |
1da177e4 LT |
324 | |
325 | source "fs/xfs/Kconfig" | |
326 | ||
b4e40a51 | 327 | config OCFS2_FS |
02ed8416 MF |
328 | tristate "OCFS2 file system support" |
329 | depends on NET && SYSFS | |
b4e40a51 MF |
330 | select CONFIGFS_FS |
331 | select JBD | |
332 | select CRC32 | |
333 | select INET | |
334 | help | |
335 | OCFS2 is a general purpose extent based shared disk cluster file | |
336 | system with many similarities to ext3. It supports 64 bit inode | |
337 | numbers, and has automatically extending metadata groups which may | |
338 | also make it attractive for non-clustered use. | |
339 | ||
340 | You'll want to install the ocfs2-tools package in order to at least | |
341 | get "mount.ocfs2". | |
342 | ||
343 | Project web page: http://oss.oracle.com/projects/ocfs2 | |
344 | Tools web page: http://oss.oracle.com/projects/ocfs2-tools | |
345 | OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/ | |
346 | ||
347 | Note: Features which OCFS2 does not support yet: | |
348 | - extended attributes | |
b4e40a51 MF |
349 | - shared writeable mmap |
350 | - loopback is supported, but data written will not | |
351 | be cluster coherent. | |
352 | - quotas | |
353 | - cluster aware flock | |
354 | - Directory change notification (F_NOTIFY) | |
355 | - Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease) | |
356 | - POSIX ACLs | |
357 | - readpages / writepages (not user visible) | |
358 | ||
2b388c67 JB |
359 | config OCFS2_DEBUG_MASKLOG |
360 | bool "OCFS2 logging support" | |
361 | depends on OCFS2_FS | |
362 | default y | |
363 | help | |
364 | The ocfs2 filesystem has an extensive logging system. The system | |
365 | allows selection of events to log via files in /sys/o2cb/logmask/. | |
366 | This option will enlarge your kernel, but it allows debugging of | |
367 | ocfs2 filesystem issues. | |
368 | ||
1da177e4 LT |
369 | config MINIX_FS |
370 | tristate "Minix fs support" | |
371 | help | |
372 | Minix is a simple operating system used in many classes about OS's. | |
373 | The minix file system (method to organize files on a hard disk | |
374 | partition or a floppy disk) was the original file system for Linux, | |
375 | but has been superseded by the second extended file system ext2fs. | |
376 | You don't want to use the minix file system on your hard disk | |
377 | because of certain built-in restrictions, but it is sometimes found | |
378 | on older Linux floppy disks. This option will enlarge your kernel | |
379 | by about 28 KB. If unsure, say N. | |
380 | ||
381 | To compile this file system support as a module, choose M here: the | |
382 | module will be called minix. Note that the file system of your root | |
383 | partition (the one containing the directory /) cannot be compiled as | |
384 | a module. | |
385 | ||
386 | config ROMFS_FS | |
387 | tristate "ROM file system support" | |
388 | ---help--- | |
389 | This is a very small read-only file system mainly intended for | |
390 | initial ram disks of installation disks, but it could be used for | |
391 | other read-only media as well. Read | |
392 | <file:Documentation/filesystems/romfs.txt> for details. | |
393 | ||
394 | To compile this file system support as a module, choose M here: the | |
395 | module will be called romfs. Note that the file system of your | |
396 | root partition (the one containing the directory /) cannot be a | |
397 | module. | |
398 | ||
399 | If you don't know whether you need it, then you don't need it: | |
400 | answer N. | |
401 | ||
0eeca283 RL |
402 | config INOTIFY |
403 | bool "Inotify file change notification support" | |
404 | default y | |
405 | ---help--- | |
2d9048e2 AG |
406 | Say Y here to enable inotify support. Inotify is a file change |
407 | notification system and a replacement for dnotify. Inotify fixes | |
408 | numerous shortcomings in dnotify and introduces several new features | |
409 | including multiple file events, one-shot support, and unmount | |
3de11748 RL |
410 | notification. |
411 | ||
412 | For more information, see Documentation/filesystems/inotify.txt | |
0eeca283 RL |
413 | |
414 | If unsure, say Y. | |
415 | ||
2d9048e2 AG |
416 | config INOTIFY_USER |
417 | bool "Inotify support for userspace" | |
418 | depends on INOTIFY | |
419 | default y | |
420 | ---help--- | |
421 | Say Y here to enable inotify support for userspace, including the | |
422 | associated system calls. Inotify allows monitoring of both files and | |
423 | directories via a single open fd. Events are read from the file | |
424 | descriptor, which is also select()- and poll()-able. | |
425 | ||
426 | For more information, see Documentation/filesystems/inotify.txt | |
427 | ||
0eeca283 RL |
428 | If unsure, say Y. |
429 | ||
1da177e4 LT |
430 | config QUOTA |
431 | bool "Quota support" | |
432 | help | |
433 | If you say Y here, you will be able to set per user limits for disk | |
434 | usage (also called disk quotas). Currently, it works for the | |
435 | ext2, ext3, and reiserfs file system. ext3 also supports journalled | |
436 | quotas for which you don't need to run quotacheck(8) after an unclean | |
919532a5 AB |
437 | shutdown. |
438 | For further details, read the Quota mini-HOWTO, available from | |
1da177e4 LT |
439 | <http://www.tldp.org/docs.html#howto>, or the documentation provided |
440 | with the quota tools. Probably the quota support is only useful for | |
441 | multi user systems. If unsure, say N. | |
442 | ||
443 | config QFMT_V1 | |
444 | tristate "Old quota format support" | |
445 | depends on QUOTA | |
446 | help | |
447 | This quota format was (is) used by kernels earlier than 2.4.22. If | |
448 | you have quota working and you don't want to convert to new quota | |
449 | format say Y here. | |
450 | ||
451 | config QFMT_V2 | |
452 | tristate "Quota format v2 support" | |
453 | depends on QUOTA | |
454 | help | |
455 | This quota format allows using quotas with 32-bit UIDs/GIDs. If you | |
919532a5 | 456 | need this functionality say Y here. |
1da177e4 LT |
457 | |
458 | config QUOTACTL | |
459 | bool | |
460 | depends on XFS_QUOTA || QUOTA | |
461 | default y | |
462 | ||
463 | config DNOTIFY | |
464 | bool "Dnotify support" if EMBEDDED | |
465 | default y | |
466 | help | |
467 | Dnotify is a directory-based per-fd file change notification system | |
468 | that uses signals to communicate events to user-space. There exist | |
469 | superior alternatives, but some applications may still rely on | |
470 | dnotify. | |
471 | ||
472 | Because of this, if unsure, say Y. | |
473 | ||
474 | config AUTOFS_FS | |
475 | tristate "Kernel automounter support" | |
476 | help | |
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. | |
481 | ||
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. | |
485 | ||
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", | |
488 | below. | |
489 | ||
490 | To compile this support as a module, choose M here: the module will be | |
491 | called autofs. | |
492 | ||
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. | |
495 | ||
496 | config AUTOFS4_FS | |
497 | tristate "Kernel automounter version 4 support (also supports v3)" | |
498 | help | |
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. | |
503 | ||
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. | |
507 | ||
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. | |
511 | ||
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 | |
515 | N here. | |
516 | ||
04578f17 MS |
517 | config FUSE_FS |
518 | tristate "Filesystem in Userspace support" | |
519 | help | |
520 | With FUSE it is possible to implement a fully functional filesystem | |
521 | in a userspace program. | |
522 | ||
523 | There's also companion library: libfuse. This library along with | |
524 | utilities is available from the FUSE homepage: | |
525 | <http://fuse.sourceforge.net/> | |
526 | ||
909021ea MS |
527 | See <file:Documentation/filesystems/fuse.txt> for more information. |
528 | See <file:Documentation/Changes> for needed library/utility version. | |
529 | ||
04578f17 MS |
530 | If you want to develop a userspace FS, or if you want to use |
531 | a filesystem based on FUSE, answer Y or M. | |
532 | ||
1da177e4 LT |
533 | menu "CD-ROM/DVD Filesystems" |
534 | ||
535 | config ISO9660_FS | |
536 | tristate "ISO 9660 CDROM file system support" | |
537 | help | |
538 | This is the standard file system used on CD-ROMs. It was previously | |
539 | known as "High Sierra File System" and is called "hsfs" on other | |
540 | Unix systems. The so-called Rock-Ridge extensions which allow for | |
541 | long Unix filenames and symbolic links are also supported by this | |
542 | driver. If you have a CD-ROM drive and want to do more with it than | |
543 | just listen to audio CDs and watch its LEDs, say Y (and read | |
544 | <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO, | |
545 | available from <http://www.tldp.org/docs.html#howto>), thereby | |
546 | enlarging your kernel by about 27 KB; otherwise say N. | |
547 | ||
548 | To compile this file system support as a module, choose M here: the | |
549 | module will be called isofs. | |
550 | ||
551 | config JOLIET | |
552 | bool "Microsoft Joliet CDROM extensions" | |
553 | depends on ISO9660_FS | |
554 | select NLS | |
555 | help | |
556 | Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system | |
557 | which allows for long filenames in unicode format (unicode is the | |
558 | new 16 bit character code, successor to ASCII, which encodes the | |
559 | characters of almost all languages of the world; see | |
560 | <http://www.unicode.org/> for more information). Say Y here if you | |
561 | want to be able to read Joliet CD-ROMs under Linux. | |
562 | ||
563 | config ZISOFS | |
564 | bool "Transparent decompression extension" | |
565 | depends on ISO9660_FS | |
566 | select ZLIB_INFLATE | |
567 | help | |
568 | This is a Linux-specific extension to RockRidge which lets you store | |
569 | data in compressed form on a CD-ROM and have it transparently | |
570 | decompressed when the CD-ROM is accessed. See | |
571 | <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools | |
572 | necessary to create such a filesystem. Say Y here if you want to be | |
573 | able to read such compressed CD-ROMs. | |
574 | ||
575 | config ZISOFS_FS | |
576 | # for fs/nls/Config.in | |
577 | tristate | |
578 | depends on ZISOFS | |
579 | default ISO9660_FS | |
580 | ||
581 | config UDF_FS | |
582 | tristate "UDF file system support" | |
583 | help | |
584 | This is the new file system used on some CD-ROMs and DVDs. Say Y if | |
585 | you intend to mount DVD discs or CDRW's written in packet mode, or | |
586 | if written to by other UDF utilities, such as DirectCD. | |
587 | Please read <file:Documentation/filesystems/udf.txt>. | |
588 | ||
589 | To compile this file system support as a module, choose M here: the | |
590 | module will be called udf. | |
591 | ||
592 | If unsure, say N. | |
593 | ||
594 | config UDF_NLS | |
595 | bool | |
596 | default y | |
597 | depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y) | |
598 | ||
599 | endmenu | |
600 | ||
601 | menu "DOS/FAT/NT Filesystems" | |
602 | ||
603 | config FAT_FS | |
604 | tristate | |
605 | select NLS | |
606 | help | |
607 | If you want to use one of the FAT-based file systems (the MS-DOS and | |
608 | VFAT (Windows 95) file systems), then you must say Y or M here | |
609 | to include FAT support. You will then be able to mount partitions or | |
610 | diskettes with FAT-based file systems and transparently access the | |
611 | files on them, i.e. MSDOS files will look and behave just like all | |
612 | other Unix files. | |
613 | ||
614 | This FAT support is not a file system in itself, it only provides | |
615 | the foundation for the other file systems. You will have to say Y or | |
616 | M to at least one of "MSDOS fs support" or "VFAT fs support" in | |
617 | order to make use of it. | |
618 | ||
619 | Another way to read and write MSDOS floppies and hard drive | |
620 | partitions from within Linux (but not transparently) is with the | |
621 | mtools ("man mtools") program suite. You don't need to say Y here in | |
622 | order to do that. | |
623 | ||
624 | If you need to move large files on floppies between a DOS and a | |
625 | Linux box, say Y here, mount the floppy under Linux with an MSDOS | |
626 | file system and use GNU tar's M option. GNU tar is a program | |
627 | available for Unix and DOS ("man tar" or "info tar"). | |
628 | ||
629 | It is now also becoming possible to read and write compressed FAT | |
630 | file systems; read <file:Documentation/filesystems/fat_cvf.txt> for | |
631 | details. | |
632 | ||
633 | The FAT support will enlarge your kernel by about 37 KB. If unsure, | |
634 | say Y. | |
635 | ||
636 | To compile this as a module, choose M here: the module will be called | |
637 | fat. Note that if you compile the FAT support as a module, you | |
638 | cannot compile any of the FAT-based file systems into the kernel | |
639 | -- they will have to be modules as well. | |
640 | ||
641 | config MSDOS_FS | |
642 | tristate "MSDOS fs support" | |
643 | select FAT_FS | |
644 | help | |
645 | This allows you to mount MSDOS partitions of your hard drive (unless | |
646 | they are compressed; to access compressed MSDOS partitions under | |
647 | Linux, you can either use the DOS emulator DOSEMU, described in the | |
648 | DOSEMU-HOWTO, available from | |
649 | <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in | |
650 | <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you | |
651 | intend to use dosemu with a non-compressed MSDOS partition, say Y | |
652 | here) and MSDOS floppies. This means that file access becomes | |
653 | transparent, i.e. the MSDOS files look and behave just like all | |
654 | other Unix files. | |
655 | ||
656 | If you have Windows 95 or Windows NT installed on your MSDOS | |
657 | partitions, you should use the VFAT file system (say Y to "VFAT fs | |
658 | support" below), or you will not be able to see the long filenames | |
659 | generated by Windows 95 / Windows NT. | |
660 | ||
661 | This option will enlarge your kernel by about 7 KB. If unsure, | |
662 | answer Y. This will only work if you said Y to "DOS FAT fs support" | |
663 | as well. To compile this as a module, choose M here: the module will | |
664 | be called msdos. | |
665 | ||
666 | config VFAT_FS | |
667 | tristate "VFAT (Windows-95) fs support" | |
668 | select FAT_FS | |
669 | help | |
670 | This option provides support for normal Windows file systems with | |
671 | long filenames. That includes non-compressed FAT-based file systems | |
672 | used by Windows 95, Windows 98, Windows NT 4.0, and the Unix | |
673 | programs from the mtools package. | |
674 | ||
675 | The VFAT support enlarges your kernel by about 10 KB and it only | |
676 | works if you said Y to the "DOS FAT fs support" above. Please read | |
677 | the file <file:Documentation/filesystems/vfat.txt> for details. If | |
678 | unsure, say Y. | |
679 | ||
680 | To compile this as a module, choose M here: the module will be called | |
681 | vfat. | |
682 | ||
683 | config FAT_DEFAULT_CODEPAGE | |
684 | int "Default codepage for FAT" | |
685 | depends on MSDOS_FS || VFAT_FS | |
686 | default 437 | |
687 | help | |
688 | This option should be set to the codepage of your FAT filesystems. | |
689 | It can be overridden with the "codepage" mount option. | |
690 | See <file:Documentation/filesystems/vfat.txt> for more information. | |
691 | ||
692 | config FAT_DEFAULT_IOCHARSET | |
693 | string "Default iocharset for FAT" | |
694 | depends on VFAT_FS | |
695 | default "iso8859-1" | |
696 | help | |
697 | Set this to the default input/output character set you'd | |
698 | like FAT to use. It should probably match the character set | |
699 | that most of your FAT filesystems use, and can be overridden | |
700 | with the "iocharset" mount option for FAT filesystems. | |
701 | Note that "utf8" is not recommended for FAT filesystems. | |
702 | If unsure, you shouldn't set "utf8" here. | |
703 | See <file:Documentation/filesystems/vfat.txt> for more information. | |
704 | ||
705 | config NTFS_FS | |
706 | tristate "NTFS file system support" | |
707 | select NLS | |
708 | help | |
709 | NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003. | |
710 | ||
711 | Saying Y or M here enables read support. There is partial, but | |
712 | safe, write support available. For write support you must also | |
713 | say Y to "NTFS write support" below. | |
714 | ||
715 | There are also a number of user-space tools available, called | |
716 | ntfsprogs. These include ntfsundelete and ntfsresize, that work | |
717 | without NTFS support enabled in the kernel. | |
718 | ||
719 | This is a rewrite from scratch of Linux NTFS support and replaced | |
720 | the old NTFS code starting with Linux 2.5.11. A backport to | |
721 | the Linux 2.4 kernel series is separately available as a patch | |
722 | from the project web site. | |
723 | ||
724 | For more information see <file:Documentation/filesystems/ntfs.txt> | |
725 | and <http://linux-ntfs.sourceforge.net/>. | |
726 | ||
727 | To compile this file system support as a module, choose M here: the | |
728 | module will be called ntfs. | |
729 | ||
730 | If you are not using Windows NT, 2000, XP or 2003 in addition to | |
731 | Linux on your computer it is safe to say N. | |
732 | ||
733 | config NTFS_DEBUG | |
734 | bool "NTFS debugging support" | |
735 | depends on NTFS_FS | |
736 | help | |
737 | If you are experiencing any problems with the NTFS file system, say | |
738 | Y here. This will result in additional consistency checks to be | |
739 | performed by the driver as well as additional debugging messages to | |
740 | be written to the system log. Note that debugging messages are | |
741 | disabled by default. To enable them, supply the option debug_msgs=1 | |
742 | at the kernel command line when booting the kernel or as an option | |
743 | to insmod when loading the ntfs module. Once the driver is active, | |
744 | you can enable debugging messages by doing (as root): | |
745 | echo 1 > /proc/sys/fs/ntfs-debug | |
746 | Replacing the "1" with "0" would disable debug messages. | |
747 | ||
748 | If you leave debugging messages disabled, this results in little | |
749 | overhead, but enabling debug messages results in very significant | |
750 | slowdown of the system. | |
751 | ||
752 | When reporting bugs, please try to have available a full dump of | |
753 | debugging messages while the misbehaviour was occurring. | |
754 | ||
755 | config NTFS_RW | |
756 | bool "NTFS write support" | |
757 | depends on NTFS_FS | |
758 | help | |
759 | This enables the partial, but safe, write support in the NTFS driver. | |
760 | ||
761 | The only supported operation is overwriting existing files, without | |
762 | changing the file length. No file or directory creation, deletion or | |
763 | renaming is possible. Note only non-resident files can be written to | |
764 | so you may find that some very small files (<500 bytes or so) cannot | |
765 | be written to. | |
766 | ||
767 | While we cannot guarantee that it will not damage any data, we have | |
768 | so far not received a single report where the driver would have | |
769 | damaged someones data so we assume it is perfectly safe to use. | |
770 | ||
771 | Note: While write support is safe in this version (a rewrite from | |
772 | scratch of the NTFS support), it should be noted that the old NTFS | |
773 | write support, included in Linux 2.5.10 and before (since 1997), | |
774 | is not safe. | |
775 | ||
776 | This is currently useful with TopologiLinux. TopologiLinux is run | |
777 | on top of any DOS/Microsoft Windows system without partitioning your | |
778 | hard disk. Unlike other Linux distributions TopologiLinux does not | |
779 | need its own partition. For more information see | |
780 | <http://topologi-linux.sourceforge.net/> | |
781 | ||
782 | It is perfectly safe to say N here. | |
783 | ||
784 | endmenu | |
785 | ||
786 | menu "Pseudo filesystems" | |
787 | ||
788 | config PROC_FS | |
69755652 PA |
789 | bool "/proc file system support" if EMBEDDED |
790 | default y | |
1da177e4 LT |
791 | help |
792 | This is a virtual file system providing information about the status | |
793 | of the system. "Virtual" means that it doesn't take up any space on | |
794 | your hard disk: the files are created on the fly by the kernel when | |
795 | you try to access them. Also, you cannot read the files with older | |
796 | version of the program less: you need to use more or cat. | |
797 | ||
798 | It's totally cool; for example, "cat /proc/interrupts" gives | |
799 | information about what the different IRQs are used for at the moment | |
800 | (there is a small number of Interrupt ReQuest lines in your computer | |
801 | that are used by the attached devices to gain the CPU's attention -- | |
802 | often a source of trouble if two devices are mistakenly configured | |
803 | to use the same IRQ). The program procinfo to display some | |
804 | information about your system gathered from the /proc file system. | |
805 | ||
806 | Before you can use the /proc file system, it has to be mounted, | |
807 | meaning it has to be given a location in the directory hierarchy. | |
808 | That location should be /proc. A command such as "mount -t proc proc | |
809 | /proc" or the equivalent line in /etc/fstab does the job. | |
810 | ||
811 | The /proc file system is explained in the file | |
812 | <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage | |
813 | ("man 5 proc"). | |
814 | ||
815 | This option will enlarge your kernel by about 67 KB. Several | |
816 | programs depend on this, so everyone should say Y here. | |
817 | ||
818 | config PROC_KCORE | |
819 | bool "/proc/kcore support" if !ARM | |
820 | depends on PROC_FS && MMU | |
821 | ||
666bfddb VG |
822 | config PROC_VMCORE |
823 | bool "/proc/vmcore support (EXPERIMENTAL)" | |
05970d47 | 824 | depends on PROC_FS && EXPERIMENTAL && CRASH_DUMP |
68250ba5 | 825 | default y |
666bfddb VG |
826 | help |
827 | Exports the dump image of crashed kernel in ELF format. | |
828 | ||
b89a8171 EB |
829 | config PROC_SYSCTL |
830 | bool "Sysctl support (/proc/sys)" if EMBEDDED | |
831 | depends on PROC_FS | |
832 | select SYSCTL | |
833 | default y | |
834 | ---help--- | |
835 | The sysctl interface provides a means of dynamically changing | |
836 | certain kernel parameters and variables on the fly without requiring | |
837 | a recompile of the kernel or reboot of the system. The primary | |
838 | interface is through /proc/sys. If you say Y here a tree of | |
839 | modifiable sysctl entries will be generated beneath the | |
840 | /proc/sys directory. They are explained in the files | |
841 | in <file:Documentation/sysctl/>. Note that enabling this | |
842 | option will enlarge the kernel by at least 8 KB. | |
843 | ||
844 | As it is generally a good thing, you should say Y here unless | |
845 | building a kernel for install/rescue disks or your system is very | |
846 | limited in memory. | |
847 | ||
1da177e4 LT |
848 | config SYSFS |
849 | bool "sysfs file system support" if EMBEDDED | |
850 | default y | |
851 | help | |
852 | The sysfs filesystem is a virtual filesystem that the kernel uses to | |
853 | export internal kernel objects, their attributes, and their | |
854 | relationships to one another. | |
855 | ||
856 | Users can use sysfs to ascertain useful information about the running | |
857 | kernel, such as the devices the kernel has discovered on each bus and | |
858 | which driver each is bound to. sysfs can also be used to tune devices | |
859 | and other kernel subsystems. | |
860 | ||
861 | Some system agents rely on the information in sysfs to operate. | |
862 | /sbin/hotplug uses device and object attributes in sysfs to assist in | |
863 | delegating policy decisions, like persistantly naming devices. | |
864 | ||
865 | sysfs is currently used by the block subsystem to mount the root | |
866 | partition. If sysfs is disabled you must specify the boot device on | |
867 | the kernel boot command line via its major and minor numbers. For | |
868 | example, "root=03:01" for /dev/hda1. | |
869 | ||
870 | Designers of embedded systems may wish to say N here to conserve space. | |
871 | ||
1da177e4 LT |
872 | config TMPFS |
873 | bool "Virtual memory file system support (former shm fs)" | |
874 | help | |
875 | Tmpfs is a file system which keeps all files in virtual memory. | |
876 | ||
877 | Everything in tmpfs is temporary in the sense that no files will be | |
878 | created on your hard drive. The files live in memory and swap | |
879 | space. If you unmount a tmpfs instance, everything stored therein is | |
880 | lost. | |
881 | ||
882 | See <file:Documentation/filesystems/tmpfs.txt> for details. | |
883 | ||
1da177e4 LT |
884 | config HUGETLBFS |
885 | bool "HugeTLB file system support" | |
0d078f6f | 886 | depends X86 || IA64 || PPC64 || SPARC64 || SUPERH || BROKEN |
dda27d1a AO |
887 | help |
888 | hugetlbfs is a filesystem backing for HugeTLB pages, based on | |
889 | ramfs. For architectures that support it, say Y here and read | |
890 | <file:Documentation/vm/hugetlbpage.txt> for details. | |
891 | ||
892 | If unsure, say N. | |
1da177e4 LT |
893 | |
894 | config HUGETLB_PAGE | |
895 | def_bool HUGETLBFS | |
896 | ||
897 | config RAMFS | |
898 | bool | |
899 | default y | |
900 | ---help--- | |
901 | Ramfs is a file system which keeps all files in RAM. It allows | |
902 | read and write access. | |
903 | ||
904 | It is more of an programming example than a useable file system. If | |
905 | you need a file system which lives in RAM with limit checking use | |
906 | tmpfs. | |
907 | ||
908 | To compile this as a module, choose M here: the module will be called | |
909 | ramfs. | |
910 | ||
7063fbf2 JB |
911 | config CONFIGFS_FS |
912 | tristate "Userspace-driven configuration filesystem (EXPERIMENTAL)" | |
65714b91 | 913 | depends on SYSFS && EXPERIMENTAL |
7063fbf2 JB |
914 | help |
915 | configfs is a ram-based filesystem that provides the converse | |
916 | of sysfs's functionality. Where sysfs is a filesystem-based | |
917 | view of kernel objects, configfs is a filesystem-based manager | |
918 | of kernel objects, or config_items. | |
919 | ||
920 | Both sysfs and configfs can and should exist together on the | |
921 | same system. One is not a replacement for the other. | |
922 | ||
1da177e4 LT |
923 | endmenu |
924 | ||
925 | menu "Miscellaneous filesystems" | |
926 | ||
927 | config ADFS_FS | |
928 | tristate "ADFS file system support (EXPERIMENTAL)" | |
929 | depends on EXPERIMENTAL | |
930 | help | |
931 | The Acorn Disc Filing System is the standard file system of the | |
932 | RiscOS operating system which runs on Acorn's ARM-based Risc PC | |
933 | systems and the Acorn Archimedes range of machines. If you say Y | |
934 | here, Linux will be able to read from ADFS partitions on hard drives | |
935 | and from ADFS-formatted floppy discs. If you also want to be able to | |
936 | write to those devices, say Y to "ADFS write support" below. | |
937 | ||
938 | The ADFS partition should be the first partition (i.e., | |
939 | /dev/[hs]d?1) on each of your drives. Please read the file | |
940 | <file:Documentation/filesystems/adfs.txt> for further details. | |
941 | ||
942 | To compile this code as a module, choose M here: the module will be | |
943 | called adfs. | |
944 | ||
945 | If unsure, say N. | |
946 | ||
947 | config ADFS_FS_RW | |
948 | bool "ADFS write support (DANGEROUS)" | |
949 | depends on ADFS_FS | |
950 | help | |
951 | If you say Y here, you will be able to write to ADFS partitions on | |
952 | hard drives and ADFS-formatted floppy disks. This is experimental | |
953 | codes, so if you're unsure, say N. | |
954 | ||
955 | config AFFS_FS | |
956 | tristate "Amiga FFS file system support (EXPERIMENTAL)" | |
957 | depends on EXPERIMENTAL | |
958 | help | |
959 | The Fast File System (FFS) is the common file system used on hard | |
960 | disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y | |
961 | if you want to be able to read and write files from and to an Amiga | |
962 | FFS partition on your hard drive. Amiga floppies however cannot be | |
963 | read with this driver due to an incompatibility of the floppy | |
964 | controller used in an Amiga and the standard floppy controller in | |
965 | PCs and workstations. Read <file:Documentation/filesystems/affs.txt> | |
966 | and <file:fs/affs/Changes>. | |
967 | ||
968 | With this driver you can also mount disk files used by Bernd | |
969 | Schmidt's Un*X Amiga Emulator | |
970 | (<http://www.freiburg.linux.de/~uae/>). | |
971 | If you want to do this, you will also need to say Y or M to "Loop | |
972 | device support", above. | |
973 | ||
974 | To compile this file system support as a module, choose M here: the | |
975 | module will be called affs. If unsure, say N. | |
976 | ||
977 | config HFS_FS | |
978 | tristate "Apple Macintosh file system support (EXPERIMENTAL)" | |
979 | depends on EXPERIMENTAL | |
878129a3 | 980 | select NLS |
1da177e4 LT |
981 | help |
982 | If you say Y here, you will be able to mount Macintosh-formatted | |
983 | floppy disks and hard drive partitions with full read-write access. | |
984 | Please read <file:fs/hfs/HFS.txt> to learn about the available mount | |
985 | options. | |
986 | ||
987 | To compile this file system support as a module, choose M here: the | |
988 | module will be called hfs. | |
989 | ||
990 | config HFSPLUS_FS | |
991 | tristate "Apple Extended HFS file system support" | |
992 | select NLS | |
993 | select NLS_UTF8 | |
994 | help | |
995 | If you say Y here, you will be able to mount extended format | |
996 | Macintosh-formatted hard drive partitions with full read-write access. | |
997 | ||
998 | This file system is often called HFS+ and was introduced with | |
999 | MacOS 8. It includes all Mac specific filesystem data such as | |
1000 | data forks and creator codes, but it also has several UNIX | |
1001 | style features such as file ownership and permissions. | |
1002 | ||
1003 | config BEFS_FS | |
1004 | tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)" | |
1005 | depends on EXPERIMENTAL | |
1006 | select NLS | |
1007 | help | |
1008 | The BeOS File System (BeFS) is the native file system of Be, Inc's | |
1009 | BeOS. Notable features include support for arbitrary attributes | |
1010 | on files and directories, and database-like indeces on selected | |
1011 | attributes. (Also note that this driver doesn't make those features | |
1012 | available at this time). It is a 64 bit filesystem, so it supports | |
1013 | extremly large volumes and files. | |
1014 | ||
1015 | If you use this filesystem, you should also say Y to at least one | |
1016 | of the NLS (native language support) options below. | |
1017 | ||
1018 | If you don't know what this is about, say N. | |
1019 | ||
1020 | To compile this as a module, choose M here: the module will be | |
1021 | called befs. | |
1022 | ||
1023 | config BEFS_DEBUG | |
1024 | bool "Debug BeFS" | |
1025 | depends on BEFS_FS | |
1026 | help | |
1027 | If you say Y here, you can use the 'debug' mount option to enable | |
1028 | debugging output from the driver. | |
1029 | ||
1030 | config BFS_FS | |
1031 | tristate "BFS file system support (EXPERIMENTAL)" | |
1032 | depends on EXPERIMENTAL | |
1033 | help | |
1034 | Boot File System (BFS) is a file system used under SCO UnixWare to | |
1035 | allow the bootloader access to the kernel image and other important | |
1036 | files during the boot process. It is usually mounted under /stand | |
1037 | and corresponds to the slice marked as "STAND" in the UnixWare | |
1038 | partition. You should say Y if you want to read or write the files | |
1039 | on your /stand slice from within Linux. You then also need to say Y | |
1040 | to "UnixWare slices support", below. More information about the BFS | |
1041 | file system is contained in the file | |
1042 | <file:Documentation/filesystems/bfs.txt>. | |
1043 | ||
1044 | If you don't know what this is about, say N. | |
1045 | ||
1046 | To compile this as a module, choose M here: the module will be called | |
1047 | bfs. Note that the file system of your root partition (the one | |
1048 | containing the directory /) cannot be compiled as a module. | |
1049 | ||
1050 | ||
1051 | ||
1052 | config EFS_FS | |
1053 | tristate "EFS file system support (read only) (EXPERIMENTAL)" | |
1054 | depends on EXPERIMENTAL | |
1055 | help | |
1056 | EFS is an older file system used for non-ISO9660 CD-ROMs and hard | |
1057 | disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer | |
1058 | uses the XFS file system for hard disk partitions however). | |
1059 | ||
1060 | This implementation only offers read-only access. If you don't know | |
1061 | what all this is about, it's safe to say N. For more information | |
1062 | about EFS see its home page at <http://aeschi.ch.eu.org/efs/>. | |
1063 | ||
1064 | To compile the EFS file system support as a module, choose M here: the | |
1065 | module will be called efs. | |
1066 | ||
1067 | config JFFS_FS | |
1068 | tristate "Journalling Flash File System (JFFS) support" | |
1069 | depends on MTD | |
1070 | help | |
1071 | JFFS is the Journaling Flash File System developed by Axis | |
1072 | Communications in Sweden, aimed at providing a crash/powerdown-safe | |
1073 | file system for disk-less embedded devices. Further information is | |
1074 | available at (<http://developer.axis.com/software/jffs/>). | |
1075 | ||
1076 | config JFFS_FS_VERBOSE | |
1077 | int "JFFS debugging verbosity (0 = quiet, 3 = noisy)" | |
1078 | depends on JFFS_FS | |
1079 | default "0" | |
1080 | help | |
1081 | Determines the verbosity level of the JFFS debugging messages. | |
1082 | ||
1083 | config JFFS_PROC_FS | |
1084 | bool "JFFS stats available in /proc filesystem" | |
1085 | depends on JFFS_FS && PROC_FS | |
1086 | help | |
1087 | Enabling this option will cause statistics from mounted JFFS file systems | |
1088 | to be made available to the user in the /proc/fs/jffs/ directory. | |
1089 | ||
1090 | config JFFS2_FS | |
1091 | tristate "Journalling Flash File System v2 (JFFS2) support" | |
1092 | select CRC32 | |
1093 | depends on MTD | |
1094 | help | |
1095 | JFFS2 is the second generation of the Journalling Flash File System | |
1096 | for use on diskless embedded devices. It provides improved wear | |
1097 | levelling, compression and support for hard links. You cannot use | |
1098 | this on normal block devices, only on 'MTD' devices. | |
1099 | ||
1100 | Further information on the design and implementation of JFFS2 is | |
1101 | available at <http://sources.redhat.com/jffs2/>. | |
1102 | ||
1103 | config JFFS2_FS_DEBUG | |
1104 | int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)" | |
1105 | depends on JFFS2_FS | |
1106 | default "0" | |
1107 | help | |
1108 | This controls the amount of debugging messages produced by the JFFS2 | |
1109 | code. Set it to zero for use in production systems. For evaluation, | |
1110 | testing and debugging, it's advisable to set it to one. This will | |
1111 | enable a few assertions and will print debugging messages at the | |
1112 | KERN_DEBUG loglevel, where they won't normally be visible. Level 2 | |
1113 | is unlikely to be useful - it enables extra debugging in certain | |
1114 | areas which at one point needed debugging, but when the bugs were | |
1115 | located and fixed, the detailed messages were relegated to level 2. | |
1116 | ||
1117 | If reporting bugs, please try to have available a full dump of the | |
1118 | messages at debug level 1 while the misbehaviour was occurring. | |
1119 | ||
2ba72cb7 DW |
1120 | config JFFS2_FS_WRITEBUFFER |
1121 | bool "JFFS2 write-buffering support" | |
aa98d7cf | 1122 | depends on JFFS2_FS |
2ba72cb7 DW |
1123 | default y |
1124 | help | |
1125 | This enables the write-buffering support in JFFS2. | |
1126 | ||
1127 | This functionality is required to support JFFS2 on the following | |
1128 | types of flash devices: | |
1129 | - NAND flash | |
1130 | - NOR flash with transparent ECC | |
1131 | - DataFlash | |
1132 | ||
1133 | config JFFS2_SUMMARY | |
1134 | bool "JFFS2 summary support (EXPERIMENTAL)" | |
1135 | depends on JFFS2_FS && EXPERIMENTAL | |
1136 | default n | |
1137 | help | |
1138 | This feature makes it possible to use summary information | |
1139 | for faster filesystem mount. | |
1140 | ||
1141 | The summary information can be inserted into a filesystem image | |
1142 | by the utility 'sumtool'. | |
1143 | ||
1144 | If unsure, say 'N'. | |
1145 | ||
1146 | config JFFS2_FS_XATTR | |
1147 | bool "JFFS2 XATTR support (EXPERIMENTAL)" | |
04510dee | 1148 | depends on JFFS2_FS && EXPERIMENTAL |
aa98d7cf KK |
1149 | default n |
1150 | help | |
1151 | Extended attributes are name:value pairs associated with inodes by | |
1152 | the kernel or by users (see the attr(5) manual page, or visit | |
1153 | <http://acl.bestbits.at/> for details). | |
1154 | ||
1155 | If unsure, say N. | |
1156 | ||
1157 | config JFFS2_FS_POSIX_ACL | |
1158 | bool "JFFS2 POSIX Access Control Lists" | |
1159 | depends on JFFS2_FS_XATTR | |
1160 | default y | |
1161 | select FS_POSIX_ACL | |
1162 | help | |
1163 | Posix Access Control Lists (ACLs) support permissions for users and | |
1164 | groups beyond the owner/group/world scheme. | |
1165 | ||
1166 | To learn more about Access Control Lists, visit the Posix ACLs for | |
1167 | Linux website <http://acl.bestbits.at/>. | |
1168 | ||
1169 | If you don't know what Access Control Lists are, say N | |
1170 | ||
1171 | config JFFS2_FS_SECURITY | |
1172 | bool "JFFS2 Security Labels" | |
1173 | depends on JFFS2_FS_XATTR | |
1174 | default y | |
1175 | help | |
1176 | Security labels support alternative access control models | |
1177 | implemented by security modules like SELinux. This option | |
1178 | enables an extended attribute handler for file security | |
1179 | labels in the jffs2 filesystem. | |
1180 | ||
1181 | If you are not using a security module that requires using | |
1182 | extended attributes for file security labels, say N. | |
1183 | ||
1da177e4 LT |
1184 | config JFFS2_COMPRESSION_OPTIONS |
1185 | bool "Advanced compression options for JFFS2" | |
1186 | depends on JFFS2_FS | |
1187 | default n | |
1188 | help | |
1189 | Enabling this option allows you to explicitly choose which | |
1190 | compression modules, if any, are enabled in JFFS2. Removing | |
1191 | compressors and mean you cannot read existing file systems, | |
1192 | and enabling experimental compressors can mean that you | |
1193 | write a file system which cannot be read by a standard kernel. | |
1194 | ||
1195 | If unsure, you should _definitely_ say 'N'. | |
1196 | ||
1197 | config JFFS2_ZLIB | |
1198 | bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS | |
1199 | select ZLIB_INFLATE | |
1200 | select ZLIB_DEFLATE | |
1201 | depends on JFFS2_FS | |
1202 | default y | |
1203 | help | |
1204 | Zlib is designed to be a free, general-purpose, legally unencumbered, | |
182ec4ee | 1205 | lossless data-compression library for use on virtually any computer |
1da177e4 LT |
1206 | hardware and operating system. See <http://www.gzip.org/zlib/> for |
1207 | further information. | |
182ec4ee | 1208 | |
1da177e4 LT |
1209 | Say 'Y' if unsure. |
1210 | ||
1211 | config JFFS2_RTIME | |
1212 | bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS | |
1213 | depends on JFFS2_FS | |
1214 | default y | |
1215 | help | |
1216 | Rtime does manage to recompress already-compressed data. Say 'Y' if unsure. | |
1217 | ||
1218 | config JFFS2_RUBIN | |
1219 | bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS | |
1220 | depends on JFFS2_FS | |
1221 | default n | |
1222 | help | |
1223 | RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure. | |
1224 | ||
1225 | choice | |
1226 | prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS | |
1227 | default JFFS2_CMODE_PRIORITY | |
1228 | depends on JFFS2_FS | |
1229 | help | |
182ec4ee | 1230 | You can set here the default compression mode of JFFS2 from |
1da177e4 LT |
1231 | the available compression modes. Don't touch if unsure. |
1232 | ||
1233 | config JFFS2_CMODE_NONE | |
1234 | bool "no compression" | |
1235 | help | |
1236 | Uses no compression. | |
1237 | ||
1238 | config JFFS2_CMODE_PRIORITY | |
1239 | bool "priority" | |
1240 | help | |
182ec4ee | 1241 | Tries the compressors in a predefinied order and chooses the first |
1da177e4 LT |
1242 | successful one. |
1243 | ||
1244 | config JFFS2_CMODE_SIZE | |
1245 | bool "size (EXPERIMENTAL)" | |
1246 | help | |
182ec4ee | 1247 | Tries all compressors and chooses the one which has the smallest |
1da177e4 LT |
1248 | result. |
1249 | ||
1250 | endchoice | |
1251 | ||
1252 | config CRAMFS | |
1253 | tristate "Compressed ROM file system support (cramfs)" | |
1254 | select ZLIB_INFLATE | |
1255 | help | |
1256 | Saying Y here includes support for CramFs (Compressed ROM File | |
1257 | System). CramFs is designed to be a simple, small, and compressed | |
1258 | file system for ROM based embedded systems. CramFs is read-only, | |
1259 | limited to 256MB file systems (with 16MB files), and doesn't support | |
1260 | 16/32 bits uid/gid, hard links and timestamps. | |
1261 | ||
1262 | See <file:Documentation/filesystems/cramfs.txt> and | |
1263 | <file:fs/cramfs/README> for further information. | |
1264 | ||
1265 | To compile this as a module, choose M here: the module will be called | |
1266 | cramfs. Note that the root file system (the one containing the | |
1267 | directory /) cannot be compiled as a module. | |
1268 | ||
1269 | If unsure, say N. | |
1270 | ||
1271 | config VXFS_FS | |
1272 | tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)" | |
1273 | help | |
1274 | FreeVxFS is a file system driver that support the VERITAS VxFS(TM) | |
1275 | file system format. VERITAS VxFS(TM) is the standard file system | |
1276 | of SCO UnixWare (and possibly others) and optionally available | |
1277 | for Sunsoft Solaris, HP-UX and many other operating systems. | |
1278 | Currently only readonly access is supported. | |
1279 | ||
1280 | NOTE: the file system type as used by mount(1), mount(2) and | |
1281 | fstab(5) is 'vxfs' as it describes the file system format, not | |
1282 | the actual driver. | |
1283 | ||
1284 | To compile this as a module, choose M here: the module will be | |
1285 | called freevxfs. If unsure, say N. | |
1286 | ||
1287 | ||
1288 | config HPFS_FS | |
1289 | tristate "OS/2 HPFS file system support" | |
1290 | help | |
1291 | OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS | |
1292 | is the file system used for organizing files on OS/2 hard disk | |
1293 | partitions. Say Y if you want to be able to read files from and | |
1294 | write files to an OS/2 HPFS partition on your hard drive. OS/2 | |
1295 | floppies however are in regular MSDOS format, so you don't need this | |
1296 | option in order to be able to read them. Read | |
1297 | <file:Documentation/filesystems/hpfs.txt>. | |
1298 | ||
1299 | To compile this file system support as a module, choose M here: the | |
1300 | module will be called hpfs. If unsure, say N. | |
1301 | ||
1302 | ||
1303 | ||
1304 | config QNX4FS_FS | |
1305 | tristate "QNX4 file system support (read only)" | |
1306 | help | |
1307 | This is the file system used by the real-time operating systems | |
1308 | QNX 4 and QNX 6 (the latter is also called QNX RTP). | |
1309 | Further information is available at <http://www.qnx.com/>. | |
1310 | Say Y if you intend to mount QNX hard disks or floppies. | |
1311 | Unless you say Y to "QNX4FS read-write support" below, you will | |
1312 | only be able to read these file systems. | |
1313 | ||
1314 | To compile this file system support as a module, choose M here: the | |
1315 | module will be called qnx4. | |
1316 | ||
1317 | If you don't know whether you need it, then you don't need it: | |
1318 | answer N. | |
1319 | ||
1320 | config QNX4FS_RW | |
1321 | bool "QNX4FS write support (DANGEROUS)" | |
1322 | depends on QNX4FS_FS && EXPERIMENTAL && BROKEN | |
1323 | help | |
1324 | Say Y if you want to test write support for QNX4 file systems. | |
1325 | ||
1326 | It's currently broken, so for now: | |
1327 | answer N. | |
1328 | ||
1329 | ||
1330 | ||
1331 | config SYSV_FS | |
1332 | tristate "System V/Xenix/V7/Coherent file system support" | |
1333 | help | |
1334 | SCO, Xenix and Coherent are commercial Unix systems for Intel | |
1335 | machines, and Version 7 was used on the DEC PDP-11. Saying Y | |
1336 | here would allow you to read from their floppies and hard disk | |
1337 | partitions. | |
1338 | ||
1339 | If you have floppies or hard disk partitions like that, it is likely | |
1340 | that they contain binaries from those other Unix systems; in order | |
1341 | to run these binaries, you will want to install linux-abi which is a | |
1342 | a set of kernel modules that lets you run SCO, Xenix, Wyse, | |
1343 | UnixWare, Dell Unix and System V programs under Linux. It is | |
1344 | available via FTP (user: ftp) from | |
1345 | <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>). | |
1346 | NOTE: that will work only for binaries from Intel-based systems; | |
1347 | PDP ones will have to wait until somebody ports Linux to -11 ;-) | |
1348 | ||
1349 | If you only intend to mount files from some other Unix over the | |
1350 | network using NFS, you don't need the System V file system support | |
1351 | (but you need NFS file system support obviously). | |
1352 | ||
1353 | Note that this option is generally not needed for floppies, since a | |
1354 | good portable way to transport files and directories between unixes | |
1355 | (and even other operating systems) is given by the tar program ("man | |
1356 | tar" or preferably "info tar"). Note also that this option has | |
1357 | nothing whatsoever to do with the option "System V IPC". Read about | |
1358 | the System V file system in | |
1359 | <file:Documentation/filesystems/sysv-fs.txt>. | |
1360 | Saying Y here will enlarge your kernel by about 27 KB. | |
1361 | ||
1362 | To compile this as a module, choose M here: the module will be called | |
1363 | sysv. | |
1364 | ||
1365 | If you haven't heard about all of this before, it's safe to say N. | |
1366 | ||
1367 | ||
1368 | ||
1369 | config UFS_FS | |
1370 | tristate "UFS file system support (read only)" | |
1371 | help | |
1372 | BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD, | |
1373 | OpenBSD and NeXTstep) use a file system called UFS. Some System V | |
1374 | Unixes can create and mount hard disk partitions and diskettes using | |
1375 | this file system as well. Saying Y here will allow you to read from | |
1376 | these partitions; if you also want to write to them, say Y to the | |
1377 | experimental "UFS file system write support", below. Please read the | |
1378 | file <file:Documentation/filesystems/ufs.txt> for more information. | |
1379 | ||
1380 | The recently released UFS2 variant (used in FreeBSD 5.x) is | |
1381 | READ-ONLY supported. | |
1382 | ||
1383 | If you only intend to mount files from some other Unix over the | |
1384 | network using NFS, you don't need the UFS file system support (but | |
1385 | you need NFS file system support obviously). | |
1386 | ||
1387 | Note that this option is generally not needed for floppies, since a | |
1388 | good portable way to transport files and directories between unixes | |
1389 | (and even other operating systems) is given by the tar program ("man | |
1390 | tar" or preferably "info tar"). | |
1391 | ||
1392 | When accessing NeXTstep files, you may need to convert them from the | |
1393 | NeXT character set to the Latin1 character set; use the program | |
1394 | recode ("info recode") for this purpose. | |
1395 | ||
1396 | To compile the UFS file system support as a module, choose M here: the | |
1397 | module will be called ufs. | |
1398 | ||
1399 | If you haven't heard about all of this before, it's safe to say N. | |
1400 | ||
1401 | config UFS_FS_WRITE | |
1402 | bool "UFS file system write support (DANGEROUS)" | |
5afb3145 | 1403 | depends on UFS_FS && EXPERIMENTAL |
1da177e4 LT |
1404 | help |
1405 | Say Y here if you want to try writing to UFS partitions. This is | |
1406 | experimental, so you should back up your UFS partitions beforehand. | |
1407 | ||
abf5d15f ED |
1408 | config UFS_DEBUG |
1409 | bool "UFS debugging" | |
1410 | depends on UFS_FS | |
1411 | help | |
1412 | If you are experiencing any problems with the UFS filesystem, say | |
1413 | Y here. This will result in _many_ additional debugging messages to be | |
1414 | written to the system log. | |
1415 | ||
1da177e4 LT |
1416 | endmenu |
1417 | ||
1418 | menu "Network File Systems" | |
1419 | depends on NET | |
1420 | ||
1421 | config NFS_FS | |
1422 | tristate "NFS file system support" | |
1423 | depends on INET | |
1424 | select LOCKD | |
1425 | select SUNRPC | |
b7fa0554 | 1426 | select NFS_ACL_SUPPORT if NFS_V3_ACL |
1da177e4 LT |
1427 | help |
1428 | If you are connected to some other (usually local) Unix computer | |
1429 | (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing | |
1430 | on that computer (the NFS server) using the Network File Sharing | |
1431 | protocol, say Y. "Mounting files" means that the client can access | |
1432 | the files with usual UNIX commands as if they were sitting on the | |
1433 | client's hard disk. For this to work, the server must run the | |
1434 | programs nfsd and mountd (but does not need to have NFS file system | |
1435 | support enabled in its kernel). NFS is explained in the Network | |
1436 | Administrator's Guide, available from | |
1437 | <http://www.tldp.org/docs.html#guide>, on its man page: "man | |
1438 | nfs", and in the NFS-HOWTO. | |
1439 | ||
1440 | A superior but less widely used alternative to NFS is provided by | |
1441 | the Coda file system; see "Coda file system support" below. | |
1442 | ||
1443 | If you say Y here, you should have said Y to TCP/IP networking also. | |
1444 | This option would enlarge your kernel by about 27 KB. | |
1445 | ||
1446 | To compile this file system support as a module, choose M here: the | |
1447 | module will be called nfs. | |
1448 | ||
1449 | If you are configuring a diskless machine which will mount its root | |
1450 | file system over NFS at boot time, say Y here and to "Kernel | |
1451 | level IP autoconfiguration" above and to "Root file system on NFS" | |
1452 | below. You cannot compile this driver as a module in this case. | |
1453 | There are two packages designed for booting diskless machines over | |
1454 | the net: netboot, available from | |
1455 | <http://ftp1.sourceforge.net/netboot/>, and Etherboot, | |
1456 | available from <http://ftp1.sourceforge.net/etherboot/>. | |
1457 | ||
1458 | If you don't know what all this is about, say N. | |
1459 | ||
1460 | config NFS_V3 | |
1461 | bool "Provide NFSv3 client support" | |
1462 | depends on NFS_FS | |
1463 | help | |
1464 | Say Y here if you want your NFS client to be able to speak version | |
1465 | 3 of the NFS protocol. | |
1466 | ||
1467 | If unsure, say Y. | |
1468 | ||
b7fa0554 AG |
1469 | config NFS_V3_ACL |
1470 | bool "Provide client support for the NFSv3 ACL protocol extension" | |
1471 | depends on NFS_V3 | |
1472 | help | |
1473 | Implement the NFSv3 ACL protocol extension for manipulating POSIX | |
1474 | Access Control Lists. The server should also be compiled with | |
1475 | the NFSv3 ACL protocol extension; see the CONFIG_NFSD_V3_ACL option. | |
1476 | ||
1477 | If unsure, say N. | |
1478 | ||
1da177e4 LT |
1479 | config NFS_V4 |
1480 | bool "Provide NFSv4 client support (EXPERIMENTAL)" | |
1481 | depends on NFS_FS && EXPERIMENTAL | |
1482 | select RPCSEC_GSS_KRB5 | |
1483 | help | |
1484 | Say Y here if you want your NFS client to be able to speak the newer | |
1485 | version 4 of the NFS protocol. | |
1486 | ||
1487 | Note: Requires auxiliary userspace daemons which may be found on | |
1488 | http://www.citi.umich.edu/projects/nfsv4/ | |
1489 | ||
1490 | If unsure, say N. | |
1491 | ||
1492 | config NFS_DIRECTIO | |
026ed5c9 CL |
1493 | bool "Allow direct I/O on NFS files" |
1494 | depends on NFS_FS | |
1da177e4 LT |
1495 | help |
1496 | This option enables applications to perform uncached I/O on files | |
1497 | in NFS file systems using the O_DIRECT open() flag. When O_DIRECT | |
1498 | is set for a file, its data is not cached in the system's page | |
1499 | cache. Data is moved to and from user-level application buffers | |
1500 | directly. Unlike local disk-based file systems, NFS O_DIRECT has | |
1501 | no alignment restrictions. | |
1502 | ||
1503 | Unless your program is designed to use O_DIRECT properly, you are | |
1504 | much better off allowing the NFS client to manage data caching for | |
1505 | you. Misusing O_DIRECT can cause poor server performance or network | |
1506 | storms. This kernel build option defaults OFF to avoid exposing | |
1507 | system administrators unwittingly to a potentially hazardous | |
1508 | feature. | |
1509 | ||
1510 | For more details on NFS O_DIRECT, see fs/nfs/direct.c. | |
1511 | ||
1512 | If unsure, say N. This reduces the size of the NFS client, and | |
1513 | causes open() to return EINVAL if a file residing in NFS is | |
1514 | opened with the O_DIRECT flag. | |
1515 | ||
1516 | config NFSD | |
1517 | tristate "NFS server support" | |
1518 | depends on INET | |
1519 | select LOCKD | |
1520 | select SUNRPC | |
1521 | select EXPORTFS | |
f05e15b5 HX |
1522 | select NFSD_V2_ACL if NFSD_V3_ACL |
1523 | select NFS_ACL_SUPPORT if NFSD_V2_ACL | |
1524 | select NFSD_TCP if NFSD_V4 | |
1525 | select CRYPTO_MD5 if NFSD_V4 | |
1526 | select CRYPTO if NFSD_V4 | |
1527 | select FS_POSIX_ACL if NFSD_V4 | |
1da177e4 LT |
1528 | help |
1529 | If you want your Linux box to act as an NFS *server*, so that other | |
1530 | computers on your local network which support NFS can access certain | |
1531 | directories on your box transparently, you have two options: you can | |
1532 | use the self-contained user space program nfsd, in which case you | |
1533 | should say N here, or you can say Y and use the kernel based NFS | |
1534 | server. The advantage of the kernel based solution is that it is | |
1535 | faster. | |
1536 | ||
1537 | In either case, you will need support software; the respective | |
1538 | locations are given in the file <file:Documentation/Changes> in the | |
1539 | NFS section. | |
1540 | ||
1541 | If you say Y here, you will get support for version 2 of the NFS | |
1542 | protocol (NFSv2). If you also want NFSv3, say Y to the next question | |
1543 | as well. | |
1544 | ||
1545 | Please read the NFS-HOWTO, available from | |
1546 | <http://www.tldp.org/docs.html#howto>. | |
1547 | ||
1548 | To compile the NFS server support as a module, choose M here: the | |
1549 | module will be called nfsd. If unsure, say N. | |
1550 | ||
a257cdd0 AG |
1551 | config NFSD_V2_ACL |
1552 | bool | |
1553 | depends on NFSD | |
1554 | ||
1da177e4 LT |
1555 | config NFSD_V3 |
1556 | bool "Provide NFSv3 server support" | |
1557 | depends on NFSD | |
1558 | help | |
1559 | If you would like to include the NFSv3 server as well as the NFSv2 | |
1560 | server, say Y here. If unsure, say Y. | |
1561 | ||
a257cdd0 AG |
1562 | config NFSD_V3_ACL |
1563 | bool "Provide server support for the NFSv3 ACL protocol extension" | |
1564 | depends on NFSD_V3 | |
a257cdd0 AG |
1565 | help |
1566 | Implement the NFSv3 ACL protocol extension for manipulating POSIX | |
1567 | Access Control Lists on exported file systems. NFS clients should | |
1568 | be compiled with the NFSv3 ACL protocol extension; see the | |
1569 | CONFIG_NFS_V3_ACL option. If unsure, say N. | |
1570 | ||
1da177e4 LT |
1571 | config NFSD_V4 |
1572 | bool "Provide NFSv4 server support (EXPERIMENTAL)" | |
1573 | depends on NFSD_V3 && EXPERIMENTAL | |
1da177e4 LT |
1574 | help |
1575 | If you would like to include the NFSv4 server as well as the NFSv2 | |
1576 | and NFSv3 servers, say Y here. This feature is experimental, and | |
1577 | should only be used if you are interested in helping to test NFSv4. | |
1578 | If unsure, say N. | |
1579 | ||
1580 | config NFSD_TCP | |
1581 | bool "Provide NFS server over TCP support" | |
1582 | depends on NFSD | |
1583 | default y | |
1584 | help | |
1585 | If you want your NFS server to support TCP connections, say Y here. | |
1586 | TCP connections usually perform better than the default UDP when | |
1587 | the network is lossy or congested. If unsure, say Y. | |
1588 | ||
1589 | config ROOT_NFS | |
1590 | bool "Root file system on NFS" | |
1591 | depends on NFS_FS=y && IP_PNP | |
1592 | help | |
1593 | If you want your Linux box to mount its whole root file system (the | |
1594 | one containing the directory /) from some other computer over the | |
1595 | net via NFS (presumably because your box doesn't have a hard disk), | |
1596 | say Y. Read <file:Documentation/nfsroot.txt> for details. It is | |
1597 | likely that in this case, you also want to say Y to "Kernel level IP | |
1598 | autoconfiguration" so that your box can discover its network address | |
1599 | at boot time. | |
1600 | ||
1601 | Most people say N here. | |
1602 | ||
1603 | config LOCKD | |
1604 | tristate | |
1605 | ||
1606 | config LOCKD_V4 | |
1607 | bool | |
1608 | depends on NFSD_V3 || NFS_V3 | |
1609 | default y | |
1610 | ||
1611 | config EXPORTFS | |
1612 | tristate | |
1613 | ||
a257cdd0 AG |
1614 | config NFS_ACL_SUPPORT |
1615 | tristate | |
1616 | select FS_POSIX_ACL | |
1617 | ||
1618 | config NFS_COMMON | |
1619 | bool | |
1620 | depends on NFSD || NFS_FS | |
1621 | default y | |
1622 | ||
1da177e4 LT |
1623 | config SUNRPC |
1624 | tristate | |
1625 | ||
1626 | config SUNRPC_GSS | |
1627 | tristate | |
1628 | ||
1629 | config RPCSEC_GSS_KRB5 | |
1630 | tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)" | |
1631 | depends on SUNRPC && EXPERIMENTAL | |
1632 | select SUNRPC_GSS | |
1633 | select CRYPTO | |
1634 | select CRYPTO_MD5 | |
1635 | select CRYPTO_DES | |
1636 | help | |
1637 | Provides for secure RPC calls by means of a gss-api | |
1638 | mechanism based on Kerberos V5. This is required for | |
1639 | NFSv4. | |
1640 | ||
1641 | Note: Requires an auxiliary userspace daemon which may be found on | |
1642 | http://www.citi.umich.edu/projects/nfsv4/ | |
1643 | ||
1644 | If unsure, say N. | |
1645 | ||
1646 | config RPCSEC_GSS_SPKM3 | |
1647 | tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)" | |
1648 | depends on SUNRPC && EXPERIMENTAL | |
1649 | select SUNRPC_GSS | |
1650 | select CRYPTO | |
1651 | select CRYPTO_MD5 | |
1652 | select CRYPTO_DES | |
df6db302 | 1653 | select CRYPTO_CAST5 |
1da177e4 LT |
1654 | help |
1655 | Provides for secure RPC calls by means of a gss-api | |
1656 | mechanism based on the SPKM3 public-key mechanism. | |
1657 | ||
1658 | Note: Requires an auxiliary userspace daemon which may be found on | |
1659 | http://www.citi.umich.edu/projects/nfsv4/ | |
1660 | ||
1661 | If unsure, say N. | |
1662 | ||
1663 | config SMB_FS | |
1664 | tristate "SMB file system support (to mount Windows shares etc.)" | |
1665 | depends on INET | |
1666 | select NLS | |
1667 | help | |
1668 | SMB (Server Message Block) is the protocol Windows for Workgroups | |
1669 | (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share | |
1670 | files and printers over local networks. Saying Y here allows you to | |
1671 | mount their file systems (often called "shares" in this context) and | |
1672 | access them just like any other Unix directory. Currently, this | |
1673 | works only if the Windows machines use TCP/IP as the underlying | |
1674 | transport protocol, and not NetBEUI. For details, read | |
1675 | <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO, | |
1676 | available from <http://www.tldp.org/docs.html#howto>. | |
1677 | ||
1678 | Note: if you just want your box to act as an SMB *server* and make | |
1679 | files and printing services available to Windows clients (which need | |
1680 | to have a TCP/IP stack), you don't need to say Y here; you can use | |
1681 | the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>) | |
1682 | for that. | |
1683 | ||
1684 | General information about how to connect Linux, Windows machines and | |
1685 | Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>. | |
1686 | ||
1687 | To compile the SMB support as a module, choose M here: the module will | |
1688 | be called smbfs. Most people say N, however. | |
1689 | ||
1690 | config SMB_NLS_DEFAULT | |
1691 | bool "Use a default NLS" | |
1692 | depends on SMB_FS | |
1693 | help | |
1694 | Enabling this will make smbfs use nls translations by default. You | |
1695 | need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls | |
1696 | settings and you need to give the default nls for the SMB server as | |
1697 | CONFIG_SMB_NLS_REMOTE. | |
1698 | ||
1699 | The nls settings can be changed at mount time, if your smbmount | |
1700 | supports that, using the codepage and iocharset parameters. | |
1701 | ||
1702 | smbmount from samba 2.2.0 or later supports this. | |
1703 | ||
1704 | config SMB_NLS_REMOTE | |
1705 | string "Default Remote NLS Option" | |
1706 | depends on SMB_NLS_DEFAULT | |
1707 | default "cp437" | |
1708 | help | |
1709 | This setting allows you to specify a default value for which | |
1710 | codepage the server uses. If this field is left blank no | |
1711 | translations will be done by default. The local codepage/charset | |
1712 | default to CONFIG_NLS_DEFAULT. | |
1713 | ||
1714 | The nls settings can be changed at mount time, if your smbmount | |
1715 | supports that, using the codepage and iocharset parameters. | |
1716 | ||
1717 | smbmount from samba 2.2.0 or later supports this. | |
1718 | ||
1719 | config CIFS | |
1720 | tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)" | |
1721 | depends on INET | |
1722 | select NLS | |
1723 | help | |
1724 | This is the client VFS module for the Common Internet File System | |
1725 | (CIFS) protocol which is the successor to the Server Message Block | |
1726 | (SMB) protocol, the native file sharing mechanism for most early | |
1727 | PC operating systems. The CIFS protocol is fully supported by | |
1728 | file servers such as Windows 2000 (including Windows 2003, NT 4 | |
1729 | and Windows XP) as well by Samba (which provides excellent CIFS | |
ec58ef03 SF |
1730 | server support for Linux and many other operating systems). Limited |
1731 | support for Windows ME and similar servers is provided as well. | |
1732 | You must use the smbfs client filesystem to access older SMB servers | |
1733 | such as OS/2 and DOS. | |
1da177e4 LT |
1734 | |
1735 | The intent of the cifs module is to provide an advanced | |
1736 | network file system client for mounting to CIFS compliant servers, | |
1737 | including support for dfs (hierarchical name space), secure per-user | |
1738 | session establishment, safe distributed caching (oplock), optional | |
1739 | packet signing, Unicode and other internationalization improvements, | |
1740 | and optional Winbind (nsswitch) integration. You do not need to enable | |
1741 | cifs if running only a (Samba) server. It is possible to enable both | |
1742 | smbfs and cifs (e.g. if you are using CIFS for accessing Windows 2003 | |
1743 | and Samba 3 servers, and smbfs for accessing old servers). If you need | |
ec58ef03 | 1744 | to mount to Samba or Windows from this machine, say Y. |
1da177e4 LT |
1745 | |
1746 | config CIFS_STATS | |
1747 | bool "CIFS statistics" | |
1748 | depends on CIFS | |
1749 | help | |
1750 | Enabling this option will cause statistics for each server share | |
1751 | mounted by the cifs client to be displayed in /proc/fs/cifs/Stats | |
1752 | ||
ec58ef03 | 1753 | config CIFS_STATS2 |
3979877e | 1754 | bool "Extended statistics" |
ec58ef03 SF |
1755 | depends on CIFS_STATS |
1756 | help | |
1757 | Enabling this option will allow more detailed statistics on SMB | |
1758 | request timing to be displayed in /proc/fs/cifs/DebugData and also | |
1759 | allow optional logging of slow responses to dmesg (depending on the | |
1760 | value of /proc/fs/cifs/cifsFYI, see fs/cifs/README for more details). | |
1761 | These additional statistics may have a minor effect on performance | |
1762 | and memory utilization. | |
1763 | ||
1764 | Unless you are a developer or are doing network performance analysis | |
1765 | or tuning, say N. | |
1766 | ||
3979877e SF |
1767 | config CIFS_WEAK_PW_HASH |
1768 | bool "Support legacy servers which use weaker LANMAN security" | |
1769 | depends on CIFS | |
1770 | help | |
1771 | Modern CIFS servers including Samba and most Windows versions | |
1772 | (since 1997) support stronger NTLM (and even NTLMv2 and Kerberos) | |
1773 | security mechanisms. These hash the password more securely | |
1774 | than the mechanisms used in the older LANMAN version of the | |
1775 | SMB protocol needed to establish sessions with old SMB servers. | |
1776 | ||
1777 | Enabling this option allows the cifs module to mount to older | |
1778 | LANMAN based servers such as OS/2 and Windows 95, but such | |
1779 | mounts may be less secure than mounts using NTLM or more recent | |
1780 | security mechanisms if you are on a public network. Unless you | |
1781 | have a need to access old SMB servers (and are on a private | |
1782 | network) you probably want to say N. Even if this support | |
1783 | is enabled in the kernel build, they will not be used | |
1784 | automatically. At runtime LANMAN mounts are disabled but | |
1785 | can be set to required (or optional) either in | |
1786 | /proc/fs/cifs (see fs/cifs/README for more detail) or via an | |
1787 | option on the mount command. This support is disabled by | |
1788 | default in order to reduce the possibility of a downgrade | |
1789 | attack. | |
1790 | ||
1791 | If unsure, say N. | |
1792 | ||
1da177e4 | 1793 | config CIFS_XATTR |
ec58ef03 | 1794 | bool "CIFS extended attributes" |
1da177e4 LT |
1795 | depends on CIFS |
1796 | help | |
1797 | Extended attributes are name:value pairs associated with inodes by | |
1798 | the kernel or by users (see the attr(5) manual page, or visit | |
1799 | <http://acl.bestbits.at/> for details). CIFS maps the name of | |
1800 | extended attributes beginning with the user namespace prefix | |
1801 | to SMB/CIFS EAs. EAs are stored on Windows servers without the | |
1802 | user namespace prefix, but their names are seen by Linux cifs clients | |
1803 | prefaced by the user namespace prefix. The system namespace | |
1804 | (used by some filesystems to store ACLs) is not supported at | |
1805 | this time. | |
ec58ef03 | 1806 | |
1da177e4 LT |
1807 | If unsure, say N. |
1808 | ||
1809 | config CIFS_POSIX | |
ec58ef03 | 1810 | bool "CIFS POSIX Extensions" |
1da177e4 LT |
1811 | depends on CIFS_XATTR |
1812 | help | |
1813 | Enabling this option will cause the cifs client to attempt to | |
1814 | negotiate a newer dialect with servers, such as Samba 3.0.5 | |
1815 | or later, that optionally can handle more POSIX like (rather | |
1816 | than Windows like) file behavior. It also enables | |
1817 | support for POSIX ACLs (getfacl and setfacl) to servers | |
1818 | (such as Samba 3.10 and later) which can negotiate | |
1819 | CIFS POSIX ACL support. If unsure, say N. | |
1820 | ||
3979877e | 1821 | config CIFS_DEBUG2 |
3856a9d4 | 1822 | bool "Enable additional CIFS debugging routines" |
8ba10ab1 | 1823 | depends on CIFS |
3979877e SF |
1824 | help |
1825 | Enabling this option adds a few more debugging routines | |
1826 | to the cifs code which slightly increases the size of | |
1827 | the cifs module and can cause additional logging of debug | |
1828 | messages in some error paths, slowing performance. This | |
1829 | option can be turned off unless you are debugging | |
1830 | cifs problems. If unsure, say N. | |
1831 | ||
1da177e4 LT |
1832 | config CIFS_EXPERIMENTAL |
1833 | bool "CIFS Experimental Features (EXPERIMENTAL)" | |
cb9dbff9 | 1834 | depends on CIFS && EXPERIMENTAL |
1da177e4 | 1835 | help |
ec58ef03 SF |
1836 | Enables cifs features under testing. These features are |
1837 | experimental and currently include support for writepages | |
1838 | (multipage writebehind performance improvements) and directory | |
1839 | change notification ie fcntl(F_DNOTIFY) as well as some security | |
1840 | improvements. Some also depend on setting at runtime the | |
1841 | pseudo-file /proc/fs/cifs/Experimental (which is disabled by | |
1842 | default). See the file fs/cifs/README for more details. | |
1843 | ||
1844 | If unsure, say N. | |
1da177e4 | 1845 | |
a2653eba | 1846 | config CIFS_UPCALL |
3979877e | 1847 | bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)" |
a2653eba SF |
1848 | depends on CIFS_EXPERIMENTAL |
1849 | select CONNECTOR | |
1850 | help | |
1851 | Enables an upcall mechanism for CIFS which will be used to contact | |
1852 | userspace helper utilities to provide SPNEGO packaged Kerberos | |
1853 | tickets which are needed to mount to certain secure servers | |
1b397f4f SF |
1854 | (for which more secure Kerberos authentication is required). If |
1855 | unsure, say N. | |
a2653eba | 1856 | |
1da177e4 LT |
1857 | config NCP_FS |
1858 | tristate "NCP file system support (to mount NetWare volumes)" | |
1859 | depends on IPX!=n || INET | |
1860 | help | |
1861 | NCP (NetWare Core Protocol) is a protocol that runs over IPX and is | |
1862 | used by Novell NetWare clients to talk to file servers. It is to | |
1863 | IPX what NFS is to TCP/IP, if that helps. Saying Y here allows you | |
1864 | to mount NetWare file server volumes and to access them just like | |
1865 | any other Unix directory. For details, please read the file | |
1866 | <file:Documentation/filesystems/ncpfs.txt> in the kernel source and | |
1867 | the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>. | |
1868 | ||
1869 | You do not have to say Y here if you want your Linux box to act as a | |
1870 | file *server* for Novell NetWare clients. | |
1871 | ||
1872 | General information about how to connect Linux, Windows machines and | |
1873 | Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>. | |
1874 | ||
1875 | To compile this as a module, choose M here: the module will be called | |
1876 | ncpfs. Say N unless you are connected to a Novell network. | |
1877 | ||
1878 | source "fs/ncpfs/Kconfig" | |
1879 | ||
1880 | config CODA_FS | |
1881 | tristate "Coda file system support (advanced network fs)" | |
1882 | depends on INET | |
1883 | help | |
1884 | Coda is an advanced network file system, similar to NFS in that it | |
1885 | enables you to mount file systems of a remote server and access them | |
1886 | with regular Unix commands as if they were sitting on your hard | |
1887 | disk. Coda has several advantages over NFS: support for | |
1888 | disconnected operation (e.g. for laptops), read/write server | |
1889 | replication, security model for authentication and encryption, | |
1890 | persistent client caches and write back caching. | |
1891 | ||
1892 | If you say Y here, your Linux box will be able to act as a Coda | |
1893 | *client*. You will need user level code as well, both for the | |
1894 | client and server. Servers are currently user level, i.e. they need | |
1895 | no kernel support. Please read | |
1896 | <file:Documentation/filesystems/coda.txt> and check out the Coda | |
1897 | home page <http://www.coda.cs.cmu.edu/>. | |
1898 | ||
1899 | To compile the coda client support as a module, choose M here: the | |
1900 | module will be called coda. | |
1901 | ||
1902 | config CODA_FS_OLD_API | |
1903 | bool "Use 96-bit Coda file identifiers" | |
1904 | depends on CODA_FS | |
1905 | help | |
1906 | A new kernel-userspace API had to be introduced for Coda v6.0 | |
1907 | to support larger 128-bit file identifiers as needed by the | |
1908 | new realms implementation. | |
1909 | ||
1910 | However this new API is not backward compatible with older | |
1911 | clients. If you really need to run the old Coda userspace | |
1912 | cache manager then say Y. | |
1913 | ||
1914 | For most cases you probably want to say N. | |
1915 | ||
1916 | config AFS_FS | |
1917 | # for fs/nls/Config.in | |
1918 | tristate "Andrew File System support (AFS) (Experimental)" | |
1919 | depends on INET && EXPERIMENTAL | |
1920 | select RXRPC | |
1921 | help | |
1922 | If you say Y here, you will get an experimental Andrew File System | |
1923 | driver. It currently only supports unsecured read-only AFS access. | |
1924 | ||
1925 | See <file:Documentation/filesystems/afs.txt> for more intormation. | |
1926 | ||
1927 | If unsure, say N. | |
1928 | ||
1929 | config RXRPC | |
1930 | tristate | |
1931 | ||
93fa58cb EVH |
1932 | config 9P_FS |
1933 | tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)" | |
1934 | depends on INET && EXPERIMENTAL | |
1935 | help | |
1936 | If you say Y here, you will get experimental support for | |
1937 | Plan 9 resource sharing via the 9P2000 protocol. | |
1938 | ||
1939 | See <http://v9fs.sf.net> for more information. | |
1940 | ||
1941 | If unsure, say N. | |
1942 | ||
1da177e4 LT |
1943 | endmenu |
1944 | ||
1945 | menu "Partition Types" | |
1946 | ||
1947 | source "fs/partitions/Kconfig" | |
1948 | ||
1949 | endmenu | |
1950 | ||
1951 | source "fs/nls/Kconfig" | |
1952 | ||
1953 | endmenu | |
1954 |