| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | 
|  | 32 | help | 
|  | 33 | Posix Access Control Lists (ACLs) support permissions for users and | 
|  | 34 | groups beyond the owner/group/world scheme. | 
|  | 35 |  | 
|  | 36 | To learn more about Access Control Lists, visit the Posix ACLs for | 
|  | 37 | Linux website <http://acl.bestbits.at/>. | 
|  | 38 |  | 
|  | 39 | If you don't know what Access Control Lists are, say N | 
|  | 40 |  | 
|  | 41 | config EXT2_FS_SECURITY | 
|  | 42 | bool "Ext2 Security Labels" | 
|  | 43 | depends on EXT2_FS_XATTR | 
|  | 44 | help | 
|  | 45 | Security labels support alternative access control models | 
|  | 46 | implemented by security modules like SELinux.  This option | 
|  | 47 | enables an extended attribute handler for file security | 
|  | 48 | labels in the ext2 filesystem. | 
|  | 49 |  | 
|  | 50 | If you are not using a security module that requires using | 
|  | 51 | extended attributes for file security labels, say N. | 
|  | 52 |  | 
|  | 53 | config EXT3_FS | 
|  | 54 | tristate "Ext3 journalling file system support" | 
|  | 55 | help | 
|  | 56 | This is the journaling version of the Second extended file system | 
|  | 57 | (often called ext3), the de facto standard Linux file system | 
|  | 58 | (method to organize files on a storage device) for hard disks. | 
|  | 59 |  | 
|  | 60 | The journaling code included in this driver means you do not have | 
|  | 61 | to run e2fsck (file system checker) on your file systems after a | 
|  | 62 | crash.  The journal keeps track of any changes that were being made | 
|  | 63 | at the time the system crashed, and can ensure that your file system | 
|  | 64 | is consistent without the need for a lengthy check. | 
|  | 65 |  | 
|  | 66 | Other than adding the journal to the file system, the on-disk format | 
|  | 67 | of ext3 is identical to ext2.  It is possible to freely switch | 
|  | 68 | between using the ext3 driver and the ext2 driver, as long as the | 
|  | 69 | file system has been cleanly unmounted, or e2fsck is run on the file | 
|  | 70 | system. | 
|  | 71 |  | 
|  | 72 | To add a journal on an existing ext2 file system or change the | 
|  | 73 | behavior of ext3 file systems, you can use the tune2fs utility ("man | 
|  | 74 | tune2fs").  To modify attributes of files and directories on ext3 | 
|  | 75 | file systems, use chattr ("man chattr").  You need to be using | 
|  | 76 | e2fsprogs version 1.20 or later in order to create ext3 journals | 
|  | 77 | (available at <http://sourceforge.net/projects/e2fsprogs/>). | 
|  | 78 |  | 
|  | 79 | To compile this file system support as a module, choose M here: the | 
|  | 80 | module will be called ext3.  Be aware however that the file system | 
|  | 81 | of your root partition (the one containing the directory /) cannot | 
|  | 82 | be compiled as a module, and so this may be dangerous. | 
|  | 83 |  | 
|  | 84 | config EXT3_FS_XATTR | 
|  | 85 | bool "Ext3 extended attributes" | 
|  | 86 | depends on EXT3_FS | 
|  | 87 | default y | 
|  | 88 | help | 
|  | 89 | Extended attributes are name:value pairs associated with inodes by | 
|  | 90 | the kernel or by users (see the attr(5) manual page, or visit | 
|  | 91 | <http://acl.bestbits.at/> for details). | 
|  | 92 |  | 
|  | 93 | If unsure, say N. | 
|  | 94 |  | 
|  | 95 | You need this for POSIX ACL support on ext3. | 
|  | 96 |  | 
|  | 97 | config EXT3_FS_POSIX_ACL | 
|  | 98 | bool "Ext3 POSIX Access Control Lists" | 
|  | 99 | depends on EXT3_FS_XATTR | 
|  | 100 | help | 
|  | 101 | Posix Access Control Lists (ACLs) support permissions for users and | 
|  | 102 | groups beyond the owner/group/world scheme. | 
|  | 103 |  | 
|  | 104 | To learn more about Access Control Lists, visit the Posix ACLs for | 
|  | 105 | Linux website <http://acl.bestbits.at/>. | 
|  | 106 |  | 
|  | 107 | If you don't know what Access Control Lists are, say N | 
|  | 108 |  | 
|  | 109 | config EXT3_FS_SECURITY | 
|  | 110 | bool "Ext3 Security Labels" | 
|  | 111 | depends on EXT3_FS_XATTR | 
|  | 112 | help | 
|  | 113 | Security labels support alternative access control models | 
|  | 114 | implemented by security modules like SELinux.  This option | 
|  | 115 | enables an extended attribute handler for file security | 
|  | 116 | labels in the ext3 filesystem. | 
|  | 117 |  | 
|  | 118 | If you are not using a security module that requires using | 
|  | 119 | extended attributes for file security labels, say N. | 
|  | 120 |  | 
|  | 121 | config JBD | 
|  | 122 | # CONFIG_JBD could be its own option (even modular), but until there are | 
|  | 123 | # other users than ext3, we will simply make it be the same as CONFIG_EXT3_FS | 
|  | 124 | # dep_tristate '  Journal Block Device support (JBD for ext3)' CONFIG_JBD $CONFIG_EXT3_FS | 
|  | 125 | tristate | 
|  | 126 | default EXT3_FS | 
|  | 127 | help | 
|  | 128 | This is a generic journaling layer for block devices.  It is | 
|  | 129 | currently used by the ext3 file system, but it could also be used to | 
|  | 130 | add journal support to other file systems or block devices such as | 
|  | 131 | RAID or LVM. | 
|  | 132 |  | 
|  | 133 | If you are using the ext3 file system, you need to say Y here. If | 
|  | 134 | you are not using ext3 then you will probably want to say N. | 
|  | 135 |  | 
|  | 136 | To compile this device as a module, choose M here: the module will be | 
|  | 137 | called jbd.  If you are compiling ext3 into the kernel, you cannot | 
|  | 138 | compile this code as a module. | 
|  | 139 |  | 
|  | 140 | config JBD_DEBUG | 
|  | 141 | bool "JBD (ext3) debugging support" | 
|  | 142 | depends on JBD | 
|  | 143 | help | 
|  | 144 | If you are using the ext3 journaled file system (or potentially any | 
|  | 145 | other file system/device using JBD), this option allows you to | 
|  | 146 | enable debugging output while the system is running, in order to | 
|  | 147 | help track down any problems you are having.  By default the | 
|  | 148 | debugging output will be turned off. | 
|  | 149 |  | 
|  | 150 | If you select Y here, then you will be able to turn on debugging | 
|  | 151 | with "echo N > /proc/sys/fs/jbd-debug", where N is a number between | 
|  | 152 | 1 and 5, the higher the number, the more debugging output is | 
|  | 153 | generated.  To turn debugging off again, do | 
|  | 154 | "echo 0 > /proc/sys/fs/jbd-debug". | 
|  | 155 |  | 
|  | 156 | config FS_MBCACHE | 
|  | 157 | # Meta block cache for Extended Attributes (ext2/ext3) | 
|  | 158 | tristate | 
|  | 159 | depends on EXT2_FS_XATTR || EXT3_FS_XATTR | 
|  | 160 | default y if EXT2_FS=y || EXT3_FS=y | 
|  | 161 | default m if EXT2_FS=m || EXT3_FS=m | 
|  | 162 |  | 
|  | 163 | config REISERFS_FS | 
|  | 164 | tristate "Reiserfs support" | 
|  | 165 | help | 
|  | 166 | Stores not just filenames but the files themselves in a balanced | 
|  | 167 | tree.  Uses journaling. | 
|  | 168 |  | 
|  | 169 | Balanced trees are more efficient than traditional file system | 
|  | 170 | architectural foundations. | 
|  | 171 |  | 
|  | 172 | In general, ReiserFS is as fast as ext2, but is very efficient with | 
|  | 173 | large directories and small files.  Additional patches are needed | 
|  | 174 | for NFS and quotas, please see <http://www.namesys.com/> for links. | 
|  | 175 |  | 
|  | 176 | It is more easily extended to have features currently found in | 
|  | 177 | database and keyword search systems than block allocation based file | 
|  | 178 | systems are.  The next version will be so extended, and will support | 
|  | 179 | plugins consistent with our motto ``It takes more than a license to | 
|  | 180 | make source code open.'' | 
|  | 181 |  | 
|  | 182 | Read <http://www.namesys.com/> to learn more about reiserfs. | 
|  | 183 |  | 
|  | 184 | Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com. | 
|  | 185 |  | 
|  | 186 | If you like it, you can pay us to add new features to it that you | 
|  | 187 | need, buy a support contract, or pay us to port it to another OS. | 
|  | 188 |  | 
|  | 189 | config REISERFS_CHECK | 
|  | 190 | bool "Enable reiserfs debug mode" | 
|  | 191 | depends on REISERFS_FS | 
|  | 192 | help | 
|  | 193 | If you set this to Y, then ReiserFS will perform every check it can | 
|  | 194 | possibly imagine of its internal consistency throughout its | 
|  | 195 | operation.  It will also go substantially slower.  More than once we | 
|  | 196 | have forgotten that this was on, and then gone despondent over the | 
|  | 197 | latest benchmarks.:-) Use of this option allows our team to go all | 
|  | 198 | out in checking for consistency when debugging without fear of its | 
|  | 199 | effect on end users.  If you are on the verge of sending in a bug | 
|  | 200 | report, say Y and you might get a useful error message.  Almost | 
|  | 201 | everyone should say N. | 
|  | 202 |  | 
|  | 203 | config REISERFS_PROC_INFO | 
|  | 204 | bool "Stats in /proc/fs/reiserfs" | 
|  | 205 | depends on REISERFS_FS | 
|  | 206 | help | 
|  | 207 | Create under /proc/fs/reiserfs a hierarchy of files, displaying | 
|  | 208 | various ReiserFS statistics and internal data at the expense of | 
|  | 209 | making your kernel or module slightly larger (+8 KB). This also | 
|  | 210 | increases the amount of kernel memory required for each mount. | 
|  | 211 | Almost everyone but ReiserFS developers and people fine-tuning | 
|  | 212 | reiserfs or tracing problems should say N. | 
|  | 213 |  | 
|  | 214 | config REISERFS_FS_XATTR | 
|  | 215 | bool "ReiserFS extended attributes" | 
|  | 216 | depends on REISERFS_FS | 
|  | 217 | help | 
|  | 218 | Extended attributes are name:value pairs associated with inodes by | 
|  | 219 | the kernel or by users (see the attr(5) manual page, or visit | 
|  | 220 | <http://acl.bestbits.at/> for details). | 
|  | 221 |  | 
|  | 222 | If unsure, say N. | 
|  | 223 |  | 
|  | 224 | config REISERFS_FS_POSIX_ACL | 
|  | 225 | bool "ReiserFS POSIX Access Control Lists" | 
|  | 226 | depends on REISERFS_FS_XATTR | 
|  | 227 | help | 
|  | 228 | Posix Access Control Lists (ACLs) support permissions for users and | 
|  | 229 | groups beyond the owner/group/world scheme. | 
|  | 230 |  | 
|  | 231 | To learn more about Access Control Lists, visit the Posix ACLs for | 
|  | 232 | Linux website <http://acl.bestbits.at/>. | 
|  | 233 |  | 
|  | 234 | If you don't know what Access Control Lists are, say N | 
|  | 235 |  | 
|  | 236 | config REISERFS_FS_SECURITY | 
|  | 237 | bool "ReiserFS Security Labels" | 
|  | 238 | depends on REISERFS_FS_XATTR | 
|  | 239 | help | 
|  | 240 | Security labels support alternative access control models | 
|  | 241 | implemented by security modules like SELinux.  This option | 
|  | 242 | enables an extended attribute handler for file security | 
|  | 243 | labels in the ReiserFS filesystem. | 
|  | 244 |  | 
|  | 245 | If you are not using a security module that requires using | 
|  | 246 | extended attributes for file security labels, say N. | 
|  | 247 |  | 
|  | 248 | config JFS_FS | 
|  | 249 | tristate "JFS filesystem support" | 
|  | 250 | select NLS | 
|  | 251 | help | 
|  | 252 | This is a port of IBM's Journaled Filesystem .  More information is | 
|  | 253 | available in the file <file:Documentation/filesystems/jfs.txt>. | 
|  | 254 |  | 
|  | 255 | If you do not intend to use the JFS filesystem, say N. | 
|  | 256 |  | 
|  | 257 | config JFS_POSIX_ACL | 
|  | 258 | bool "JFS POSIX Access Control Lists" | 
|  | 259 | depends on JFS_FS | 
|  | 260 | help | 
|  | 261 | Posix Access Control Lists (ACLs) support permissions for users and | 
|  | 262 | groups beyond the owner/group/world scheme. | 
|  | 263 |  | 
|  | 264 | To learn more about Access Control Lists, visit the Posix ACLs for | 
|  | 265 | Linux website <http://acl.bestbits.at/>. | 
|  | 266 |  | 
|  | 267 | If you don't know what Access Control Lists are, say N | 
|  | 268 |  | 
|  | 269 | config JFS_SECURITY | 
|  | 270 | bool "JFS Security Labels" | 
|  | 271 | depends on JFS_FS | 
|  | 272 | help | 
|  | 273 | Security labels support alternative access control models | 
|  | 274 | implemented by security modules like SELinux.  This option | 
|  | 275 | enables an extended attribute handler for file security | 
|  | 276 | labels in the jfs filesystem. | 
|  | 277 |  | 
|  | 278 | If you are not using a security module that requires using | 
|  | 279 | extended attributes for file security labels, say N. | 
|  | 280 |  | 
|  | 281 | config JFS_DEBUG | 
|  | 282 | bool "JFS debugging" | 
|  | 283 | depends on JFS_FS | 
|  | 284 | help | 
|  | 285 | If you are experiencing any problems with the JFS filesystem, say | 
|  | 286 | Y here.  This will result in additional debugging messages to be | 
|  | 287 | written to the system log.  Under normal circumstances, this | 
|  | 288 | results in very little overhead. | 
|  | 289 |  | 
|  | 290 | config JFS_STATISTICS | 
|  | 291 | bool "JFS statistics" | 
|  | 292 | depends on JFS_FS | 
|  | 293 | help | 
|  | 294 | Enabling this option will cause statistics from the JFS file system | 
|  | 295 | to be made available to the user in the /proc/fs/jfs/ directory. | 
|  | 296 |  | 
|  | 297 | config FS_POSIX_ACL | 
|  | 298 | # Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs) | 
|  | 299 | # | 
|  | 300 | # NOTE: you can implement Posix ACLs without these helpers (XFS does). | 
|  | 301 | # 	Never use this symbol for ifdefs. | 
|  | 302 | # | 
|  | 303 | bool | 
|  | 304 | depends on EXT2_FS_POSIX_ACL || EXT3_FS_POSIX_ACL || JFS_POSIX_ACL || REISERFS_FS_POSIX_ACL || NFSD_V4 | 
|  | 305 | default y | 
|  | 306 |  | 
|  | 307 | source "fs/xfs/Kconfig" | 
|  | 308 |  | 
|  | 309 | config MINIX_FS | 
|  | 310 | tristate "Minix fs support" | 
|  | 311 | help | 
|  | 312 | Minix is a simple operating system used in many classes about OS's. | 
|  | 313 | The minix file system (method to organize files on a hard disk | 
|  | 314 | partition or a floppy disk) was the original file system for Linux, | 
|  | 315 | but has been superseded by the second extended file system ext2fs. | 
|  | 316 | You don't want to use the minix file system on your hard disk | 
|  | 317 | because of certain built-in restrictions, but it is sometimes found | 
|  | 318 | on older Linux floppy disks.  This option will enlarge your kernel | 
|  | 319 | by about 28 KB. If unsure, say N. | 
|  | 320 |  | 
|  | 321 | To compile this file system support as a module, choose M here: the | 
|  | 322 | module will be called minix.  Note that the file system of your root | 
|  | 323 | partition (the one containing the directory /) cannot be compiled as | 
|  | 324 | a module. | 
|  | 325 |  | 
|  | 326 | config ROMFS_FS | 
|  | 327 | tristate "ROM file system support" | 
|  | 328 | ---help--- | 
|  | 329 | This is a very small read-only file system mainly intended for | 
|  | 330 | initial ram disks of installation disks, but it could be used for | 
|  | 331 | other read-only media as well.  Read | 
|  | 332 | <file:Documentation/filesystems/romfs.txt> for details. | 
|  | 333 |  | 
|  | 334 | To compile this file system support as a module, choose M here: the | 
|  | 335 | module will be called romfs.  Note that the file system of your | 
|  | 336 | root partition (the one containing the directory /) cannot be a | 
|  | 337 | module. | 
|  | 338 |  | 
|  | 339 | If you don't know whether you need it, then you don't need it: | 
|  | 340 | answer N. | 
|  | 341 |  | 
|  | 342 | config QUOTA | 
|  | 343 | bool "Quota support" | 
|  | 344 | help | 
|  | 345 | If you say Y here, you will be able to set per user limits for disk | 
|  | 346 | usage (also called disk quotas). Currently, it works for the | 
|  | 347 | ext2, ext3, and reiserfs file system. ext3 also supports journalled | 
|  | 348 | quotas for which you don't need to run quotacheck(8) after an unclean | 
|  | 349 | shutdown. You need additional software in order to use quota support | 
|  | 350 | (you can download sources from | 
|  | 351 | <http://www.sf.net/projects/linuxquota/>). For further details, read | 
|  | 352 | the Quota mini-HOWTO, available from | 
|  | 353 | <http://www.tldp.org/docs.html#howto>, or the documentation provided | 
|  | 354 | with the quota tools. Probably the quota support is only useful for | 
|  | 355 | multi user systems. If unsure, say N. | 
|  | 356 |  | 
|  | 357 | config QFMT_V1 | 
|  | 358 | tristate "Old quota format support" | 
|  | 359 | depends on QUOTA | 
|  | 360 | help | 
|  | 361 | This quota format was (is) used by kernels earlier than 2.4.22. If | 
|  | 362 | you have quota working and you don't want to convert to new quota | 
|  | 363 | format say Y here. | 
|  | 364 |  | 
|  | 365 | config QFMT_V2 | 
|  | 366 | tristate "Quota format v2 support" | 
|  | 367 | depends on QUOTA | 
|  | 368 | help | 
|  | 369 | This quota format allows using quotas with 32-bit UIDs/GIDs. If you | 
|  | 370 | need this functionality say Y here. Note that you will need recent | 
|  | 371 | quota utilities (>= 3.01) for new quota format with this kernel. | 
|  | 372 |  | 
|  | 373 | config QUOTACTL | 
|  | 374 | bool | 
|  | 375 | depends on XFS_QUOTA || QUOTA | 
|  | 376 | default y | 
|  | 377 |  | 
|  | 378 | config DNOTIFY | 
|  | 379 | bool "Dnotify support" if EMBEDDED | 
|  | 380 | default y | 
|  | 381 | help | 
|  | 382 | Dnotify is a directory-based per-fd file change notification system | 
|  | 383 | that uses signals to communicate events to user-space.  There exist | 
|  | 384 | superior alternatives, but some applications may still rely on | 
|  | 385 | dnotify. | 
|  | 386 |  | 
|  | 387 | Because of this, if unsure, say Y. | 
|  | 388 |  | 
|  | 389 | config AUTOFS_FS | 
|  | 390 | tristate "Kernel automounter support" | 
|  | 391 | help | 
|  | 392 | The automounter is a tool to automatically mount remote file systems | 
|  | 393 | on demand. This implementation is partially kernel-based to reduce | 
|  | 394 | overhead in the already-mounted case; this is unlike the BSD | 
|  | 395 | automounter (amd), which is a pure user space daemon. | 
|  | 396 |  | 
|  | 397 | To use the automounter you need the user-space tools from the autofs | 
|  | 398 | package; you can find the location in <file:Documentation/Changes>. | 
|  | 399 | You also want to answer Y to "NFS file system support", below. | 
|  | 400 |  | 
|  | 401 | If you want to use the newer version of the automounter with more | 
|  | 402 | features, say N here and say Y to "Kernel automounter v4 support", | 
|  | 403 | below. | 
|  | 404 |  | 
|  | 405 | To compile this support as a module, choose M here: the module will be | 
|  | 406 | called autofs. | 
|  | 407 |  | 
|  | 408 | If you are not a part of a fairly large, distributed network, you | 
|  | 409 | probably do not need an automounter, and can say N here. | 
|  | 410 |  | 
|  | 411 | config AUTOFS4_FS | 
|  | 412 | tristate "Kernel automounter version 4 support (also supports v3)" | 
|  | 413 | help | 
|  | 414 | The automounter is a tool to automatically mount remote file systems | 
|  | 415 | on demand. This implementation is partially kernel-based to reduce | 
|  | 416 | overhead in the already-mounted case; this is unlike the BSD | 
|  | 417 | automounter (amd), which is a pure user space daemon. | 
|  | 418 |  | 
|  | 419 | To use the automounter you need the user-space tools from | 
|  | 420 | <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also | 
|  | 421 | want to answer Y to "NFS file system support", below. | 
|  | 422 |  | 
|  | 423 | To compile this support as a module, choose M here: the module will be | 
|  | 424 | called autofs4.  You will need to add "alias autofs autofs4" to your | 
|  | 425 | modules configuration file. | 
|  | 426 |  | 
|  | 427 | If you are not a part of a fairly large, distributed network or | 
|  | 428 | don't have a laptop which needs to dynamically reconfigure to the | 
|  | 429 | local network, you probably do not need an automounter, and can say | 
|  | 430 | N here. | 
|  | 431 |  | 
|  | 432 | menu "CD-ROM/DVD Filesystems" | 
|  | 433 |  | 
|  | 434 | config ISO9660_FS | 
|  | 435 | tristate "ISO 9660 CDROM file system support" | 
|  | 436 | help | 
|  | 437 | This is the standard file system used on CD-ROMs.  It was previously | 
|  | 438 | known as "High Sierra File System" and is called "hsfs" on other | 
|  | 439 | Unix systems.  The so-called Rock-Ridge extensions which allow for | 
|  | 440 | long Unix filenames and symbolic links are also supported by this | 
|  | 441 | driver.  If you have a CD-ROM drive and want to do more with it than | 
|  | 442 | just listen to audio CDs and watch its LEDs, say Y (and read | 
|  | 443 | <file:Documentation/filesystems/isofs.txt> and the CD-ROM-HOWTO, | 
|  | 444 | available from <http://www.tldp.org/docs.html#howto>), thereby | 
|  | 445 | enlarging your kernel by about 27 KB; otherwise say N. | 
|  | 446 |  | 
|  | 447 | To compile this file system support as a module, choose M here: the | 
|  | 448 | module will be called isofs. | 
|  | 449 |  | 
|  | 450 | config JOLIET | 
|  | 451 | bool "Microsoft Joliet CDROM extensions" | 
|  | 452 | depends on ISO9660_FS | 
|  | 453 | select NLS | 
|  | 454 | help | 
|  | 455 | Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system | 
|  | 456 | which allows for long filenames in unicode format (unicode is the | 
|  | 457 | new 16 bit character code, successor to ASCII, which encodes the | 
|  | 458 | characters of almost all languages of the world; see | 
|  | 459 | <http://www.unicode.org/> for more information).  Say Y here if you | 
|  | 460 | want to be able to read Joliet CD-ROMs under Linux. | 
|  | 461 |  | 
|  | 462 | config ZISOFS | 
|  | 463 | bool "Transparent decompression extension" | 
|  | 464 | depends on ISO9660_FS | 
|  | 465 | select ZLIB_INFLATE | 
|  | 466 | help | 
|  | 467 | This is a Linux-specific extension to RockRidge which lets you store | 
|  | 468 | data in compressed form on a CD-ROM and have it transparently | 
|  | 469 | decompressed when the CD-ROM is accessed.  See | 
|  | 470 | <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools | 
|  | 471 | necessary to create such a filesystem.  Say Y here if you want to be | 
|  | 472 | able to read such compressed CD-ROMs. | 
|  | 473 |  | 
|  | 474 | config ZISOFS_FS | 
|  | 475 | # for fs/nls/Config.in | 
|  | 476 | tristate | 
|  | 477 | depends on ZISOFS | 
|  | 478 | default ISO9660_FS | 
|  | 479 |  | 
|  | 480 | config UDF_FS | 
|  | 481 | tristate "UDF file system support" | 
|  | 482 | help | 
|  | 483 | This is the new file system used on some CD-ROMs and DVDs. Say Y if | 
|  | 484 | you intend to mount DVD discs or CDRW's written in packet mode, or | 
|  | 485 | if written to by other UDF utilities, such as DirectCD. | 
|  | 486 | Please read <file:Documentation/filesystems/udf.txt>. | 
|  | 487 |  | 
|  | 488 | To compile this file system support as a module, choose M here: the | 
|  | 489 | module will be called udf. | 
|  | 490 |  | 
|  | 491 | If unsure, say N. | 
|  | 492 |  | 
|  | 493 | config UDF_NLS | 
|  | 494 | bool | 
|  | 495 | default y | 
|  | 496 | depends on (UDF_FS=m && NLS) || (UDF_FS=y && NLS=y) | 
|  | 497 |  | 
|  | 498 | endmenu | 
|  | 499 |  | 
|  | 500 | menu "DOS/FAT/NT Filesystems" | 
|  | 501 |  | 
|  | 502 | config FAT_FS | 
|  | 503 | tristate | 
|  | 504 | select NLS | 
|  | 505 | help | 
|  | 506 | If you want to use one of the FAT-based file systems (the MS-DOS and | 
|  | 507 | VFAT (Windows 95) file systems), then you must say Y or M here | 
|  | 508 | to include FAT support. You will then be able to mount partitions or | 
|  | 509 | diskettes with FAT-based file systems and transparently access the | 
|  | 510 | files on them, i.e. MSDOS files will look and behave just like all | 
|  | 511 | other Unix files. | 
|  | 512 |  | 
|  | 513 | This FAT support is not a file system in itself, it only provides | 
|  | 514 | the foundation for the other file systems. You will have to say Y or | 
|  | 515 | M to at least one of "MSDOS fs support" or "VFAT fs support" in | 
|  | 516 | order to make use of it. | 
|  | 517 |  | 
|  | 518 | Another way to read and write MSDOS floppies and hard drive | 
|  | 519 | partitions from within Linux (but not transparently) is with the | 
|  | 520 | mtools ("man mtools") program suite. You don't need to say Y here in | 
|  | 521 | order to do that. | 
|  | 522 |  | 
|  | 523 | If you need to move large files on floppies between a DOS and a | 
|  | 524 | Linux box, say Y here, mount the floppy under Linux with an MSDOS | 
|  | 525 | file system and use GNU tar's M option. GNU tar is a program | 
|  | 526 | available for Unix and DOS ("man tar" or "info tar"). | 
|  | 527 |  | 
|  | 528 | It is now also becoming possible to read and write compressed FAT | 
|  | 529 | file systems; read <file:Documentation/filesystems/fat_cvf.txt> for | 
|  | 530 | details. | 
|  | 531 |  | 
|  | 532 | The FAT support will enlarge your kernel by about 37 KB. If unsure, | 
|  | 533 | say Y. | 
|  | 534 |  | 
|  | 535 | To compile this as a module, choose M here: the module will be called | 
|  | 536 | fat.  Note that if you compile the FAT support as a module, you | 
|  | 537 | cannot compile any of the FAT-based file systems into the kernel | 
|  | 538 | -- they will have to be modules as well. | 
|  | 539 |  | 
|  | 540 | config MSDOS_FS | 
|  | 541 | tristate "MSDOS fs support" | 
|  | 542 | select FAT_FS | 
|  | 543 | help | 
|  | 544 | This allows you to mount MSDOS partitions of your hard drive (unless | 
|  | 545 | they are compressed; to access compressed MSDOS partitions under | 
|  | 546 | Linux, you can either use the DOS emulator DOSEMU, described in the | 
|  | 547 | DOSEMU-HOWTO, available from | 
|  | 548 | <http://www.tldp.org/docs.html#howto>, or try dmsdosfs in | 
|  | 549 | <ftp://ibiblio.org/pub/Linux/system/filesystems/dosfs/>. If you | 
|  | 550 | intend to use dosemu with a non-compressed MSDOS partition, say Y | 
|  | 551 | here) and MSDOS floppies. This means that file access becomes | 
|  | 552 | transparent, i.e. the MSDOS files look and behave just like all | 
|  | 553 | other Unix files. | 
|  | 554 |  | 
|  | 555 | If you have Windows 95 or Windows NT installed on your MSDOS | 
|  | 556 | partitions, you should use the VFAT file system (say Y to "VFAT fs | 
|  | 557 | support" below), or you will not be able to see the long filenames | 
|  | 558 | generated by Windows 95 / Windows NT. | 
|  | 559 |  | 
|  | 560 | This option will enlarge your kernel by about 7 KB. If unsure, | 
|  | 561 | answer Y. This will only work if you said Y to "DOS FAT fs support" | 
|  | 562 | as well. To compile this as a module, choose M here: the module will | 
|  | 563 | be called msdos. | 
|  | 564 |  | 
|  | 565 | config VFAT_FS | 
|  | 566 | tristate "VFAT (Windows-95) fs support" | 
|  | 567 | select FAT_FS | 
|  | 568 | help | 
|  | 569 | This option provides support for normal Windows file systems with | 
|  | 570 | long filenames.  That includes non-compressed FAT-based file systems | 
|  | 571 | used by Windows 95, Windows 98, Windows NT 4.0, and the Unix | 
|  | 572 | programs from the mtools package. | 
|  | 573 |  | 
|  | 574 | The VFAT support enlarges your kernel by about 10 KB and it only | 
|  | 575 | works if you said Y to the "DOS FAT fs support" above.  Please read | 
|  | 576 | the file <file:Documentation/filesystems/vfat.txt> for details.  If | 
|  | 577 | unsure, say Y. | 
|  | 578 |  | 
|  | 579 | To compile this as a module, choose M here: the module will be called | 
|  | 580 | vfat. | 
|  | 581 |  | 
|  | 582 | config FAT_DEFAULT_CODEPAGE | 
|  | 583 | int "Default codepage for FAT" | 
|  | 584 | depends on MSDOS_FS || VFAT_FS | 
|  | 585 | default 437 | 
|  | 586 | help | 
|  | 587 | This option should be set to the codepage of your FAT filesystems. | 
|  | 588 | It can be overridden with the "codepage" mount option. | 
|  | 589 | See <file:Documentation/filesystems/vfat.txt> for more information. | 
|  | 590 |  | 
|  | 591 | config FAT_DEFAULT_IOCHARSET | 
|  | 592 | string "Default iocharset for FAT" | 
|  | 593 | depends on VFAT_FS | 
|  | 594 | default "iso8859-1" | 
|  | 595 | help | 
|  | 596 | Set this to the default input/output character set you'd | 
|  | 597 | like FAT to use. It should probably match the character set | 
|  | 598 | that most of your FAT filesystems use, and can be overridden | 
|  | 599 | with the "iocharset" mount option for FAT filesystems. | 
|  | 600 | Note that "utf8" is not recommended for FAT filesystems. | 
|  | 601 | If unsure, you shouldn't set "utf8" here. | 
|  | 602 | See <file:Documentation/filesystems/vfat.txt> for more information. | 
|  | 603 |  | 
|  | 604 | config NTFS_FS | 
|  | 605 | tristate "NTFS file system support" | 
|  | 606 | select NLS | 
|  | 607 | help | 
|  | 608 | NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003. | 
|  | 609 |  | 
|  | 610 | Saying Y or M here enables read support.  There is partial, but | 
|  | 611 | safe, write support available.  For write support you must also | 
|  | 612 | say Y to "NTFS write support" below. | 
|  | 613 |  | 
|  | 614 | There are also a number of user-space tools available, called | 
|  | 615 | ntfsprogs.  These include ntfsundelete and ntfsresize, that work | 
|  | 616 | without NTFS support enabled in the kernel. | 
|  | 617 |  | 
|  | 618 | This is a rewrite from scratch of Linux NTFS support and replaced | 
|  | 619 | the old NTFS code starting with Linux 2.5.11.  A backport to | 
|  | 620 | the Linux 2.4 kernel series is separately available as a patch | 
|  | 621 | from the project web site. | 
|  | 622 |  | 
|  | 623 | For more information see <file:Documentation/filesystems/ntfs.txt> | 
|  | 624 | and <http://linux-ntfs.sourceforge.net/>. | 
|  | 625 |  | 
|  | 626 | To compile this file system support as a module, choose M here: the | 
|  | 627 | module will be called ntfs. | 
|  | 628 |  | 
|  | 629 | If you are not using Windows NT, 2000, XP or 2003 in addition to | 
|  | 630 | Linux on your computer it is safe to say N. | 
|  | 631 |  | 
|  | 632 | config NTFS_DEBUG | 
|  | 633 | bool "NTFS debugging support" | 
|  | 634 | depends on NTFS_FS | 
|  | 635 | help | 
|  | 636 | If you are experiencing any problems with the NTFS file system, say | 
|  | 637 | Y here.  This will result in additional consistency checks to be | 
|  | 638 | performed by the driver as well as additional debugging messages to | 
|  | 639 | be written to the system log.  Note that debugging messages are | 
|  | 640 | disabled by default.  To enable them, supply the option debug_msgs=1 | 
|  | 641 | at the kernel command line when booting the kernel or as an option | 
|  | 642 | to insmod when loading the ntfs module.  Once the driver is active, | 
|  | 643 | you can enable debugging messages by doing (as root): | 
|  | 644 | echo 1 > /proc/sys/fs/ntfs-debug | 
|  | 645 | Replacing the "1" with "0" would disable debug messages. | 
|  | 646 |  | 
|  | 647 | If you leave debugging messages disabled, this results in little | 
|  | 648 | overhead, but enabling debug messages results in very significant | 
|  | 649 | slowdown of the system. | 
|  | 650 |  | 
|  | 651 | When reporting bugs, please try to have available a full dump of | 
|  | 652 | debugging messages while the misbehaviour was occurring. | 
|  | 653 |  | 
|  | 654 | config NTFS_RW | 
|  | 655 | bool "NTFS write support" | 
|  | 656 | depends on NTFS_FS | 
|  | 657 | help | 
|  | 658 | This enables the partial, but safe, write support in the NTFS driver. | 
|  | 659 |  | 
|  | 660 | The only supported operation is overwriting existing files, without | 
|  | 661 | changing the file length.  No file or directory creation, deletion or | 
|  | 662 | renaming is possible.  Note only non-resident files can be written to | 
|  | 663 | so you may find that some very small files (<500 bytes or so) cannot | 
|  | 664 | be written to. | 
|  | 665 |  | 
|  | 666 | While we cannot guarantee that it will not damage any data, we have | 
|  | 667 | so far not received a single report where the driver would have | 
|  | 668 | damaged someones data so we assume it is perfectly safe to use. | 
|  | 669 |  | 
|  | 670 | Note:  While write support is safe in this version (a rewrite from | 
|  | 671 | scratch of the NTFS support), it should be noted that the old NTFS | 
|  | 672 | write support, included in Linux 2.5.10 and before (since 1997), | 
|  | 673 | is not safe. | 
|  | 674 |  | 
|  | 675 | This is currently useful with TopologiLinux.  TopologiLinux is run | 
|  | 676 | on top of any DOS/Microsoft Windows system without partitioning your | 
|  | 677 | hard disk.  Unlike other Linux distributions TopologiLinux does not | 
|  | 678 | need its own partition.  For more information see | 
|  | 679 | <http://topologi-linux.sourceforge.net/> | 
|  | 680 |  | 
|  | 681 | It is perfectly safe to say N here. | 
|  | 682 |  | 
|  | 683 | endmenu | 
|  | 684 |  | 
|  | 685 | menu "Pseudo filesystems" | 
|  | 686 |  | 
|  | 687 | config PROC_FS | 
|  | 688 | bool "/proc file system support" | 
|  | 689 | help | 
|  | 690 | This is a virtual file system providing information about the status | 
|  | 691 | of the system. "Virtual" means that it doesn't take up any space on | 
|  | 692 | your hard disk: the files are created on the fly by the kernel when | 
|  | 693 | you try to access them. Also, you cannot read the files with older | 
|  | 694 | version of the program less: you need to use more or cat. | 
|  | 695 |  | 
|  | 696 | It's totally cool; for example, "cat /proc/interrupts" gives | 
|  | 697 | information about what the different IRQs are used for at the moment | 
|  | 698 | (there is a small number of Interrupt ReQuest lines in your computer | 
|  | 699 | that are used by the attached devices to gain the CPU's attention -- | 
|  | 700 | often a source of trouble if two devices are mistakenly configured | 
|  | 701 | to use the same IRQ). The program procinfo to display some | 
|  | 702 | information about your system gathered from the /proc file system. | 
|  | 703 |  | 
|  | 704 | Before you can use the /proc file system, it has to be mounted, | 
|  | 705 | meaning it has to be given a location in the directory hierarchy. | 
|  | 706 | That location should be /proc. A command such as "mount -t proc proc | 
|  | 707 | /proc" or the equivalent line in /etc/fstab does the job. | 
|  | 708 |  | 
|  | 709 | The /proc file system is explained in the file | 
|  | 710 | <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage | 
|  | 711 | ("man 5 proc"). | 
|  | 712 |  | 
|  | 713 | This option will enlarge your kernel by about 67 KB. Several | 
|  | 714 | programs depend on this, so everyone should say Y here. | 
|  | 715 |  | 
|  | 716 | config PROC_KCORE | 
|  | 717 | bool "/proc/kcore support" if !ARM | 
|  | 718 | depends on PROC_FS && MMU | 
|  | 719 |  | 
|  | 720 | config SYSFS | 
|  | 721 | bool "sysfs file system support" if EMBEDDED | 
|  | 722 | default y | 
|  | 723 | help | 
|  | 724 | The sysfs filesystem is a virtual filesystem that the kernel uses to | 
|  | 725 | export internal kernel objects, their attributes, and their | 
|  | 726 | relationships to one another. | 
|  | 727 |  | 
|  | 728 | Users can use sysfs to ascertain useful information about the running | 
|  | 729 | kernel, such as the devices the kernel has discovered on each bus and | 
|  | 730 | which driver each is bound to. sysfs can also be used to tune devices | 
|  | 731 | and other kernel subsystems. | 
|  | 732 |  | 
|  | 733 | Some system agents rely on the information in sysfs to operate. | 
|  | 734 | /sbin/hotplug uses device and object attributes in sysfs to assist in | 
|  | 735 | delegating policy decisions, like persistantly naming devices. | 
|  | 736 |  | 
|  | 737 | sysfs is currently used by the block subsystem to mount the root | 
|  | 738 | partition.  If sysfs is disabled you must specify the boot device on | 
|  | 739 | the kernel boot command line via its major and minor numbers.  For | 
|  | 740 | example, "root=03:01" for /dev/hda1. | 
|  | 741 |  | 
|  | 742 | Designers of embedded systems may wish to say N here to conserve space. | 
|  | 743 |  | 
|  | 744 | config DEVFS_FS | 
|  | 745 | bool "/dev file system support (OBSOLETE)" | 
|  | 746 | depends on EXPERIMENTAL | 
|  | 747 | help | 
|  | 748 | This is support for devfs, a virtual file system (like /proc) which | 
|  | 749 | provides the file system interface to device drivers, normally found | 
|  | 750 | in /dev. Devfs does not depend on major and minor number | 
|  | 751 | allocations. Device drivers register entries in /dev which then | 
|  | 752 | appear automatically, which means that the system administrator does | 
|  | 753 | not have to create character and block special device files in the | 
|  | 754 | /dev directory using the mknod command (or MAKEDEV script) anymore. | 
|  | 755 |  | 
|  | 756 | This is work in progress. If you want to use this, you *must* read | 
|  | 757 | the material in <file:Documentation/filesystems/devfs/>, especially | 
|  | 758 | the file README there. | 
|  | 759 |  | 
|  | 760 | Note that devfs no longer manages /dev/pts!  If you are using UNIX98 | 
|  | 761 | ptys, you will also need to mount the /dev/pts filesystem (devpts). | 
|  | 762 |  | 
|  | 763 | Note that devfs has been obsoleted by udev, | 
|  | 764 | <http://www.kernel.org/pub/linux/utils/kernel/hotplug/>. | 
|  | 765 | It has been stripped down to a bare minimum and is only provided for | 
|  | 766 | legacy installations that use its naming scheme which is | 
|  | 767 | unfortunately different from the names normal Linux installations | 
|  | 768 | use. | 
|  | 769 |  | 
|  | 770 | If unsure, say N. | 
|  | 771 |  | 
|  | 772 | config DEVFS_MOUNT | 
|  | 773 | bool "Automatically mount at boot" | 
|  | 774 | depends on DEVFS_FS | 
|  | 775 | help | 
|  | 776 | This option appears if you have CONFIG_DEVFS_FS enabled. Setting | 
|  | 777 | this to 'Y' will make the kernel automatically mount devfs onto /dev | 
|  | 778 | when the system is booted, before the init thread is started. | 
|  | 779 | You can override this with the "devfs=nomount" boot option. | 
|  | 780 |  | 
|  | 781 | If unsure, say N. | 
|  | 782 |  | 
|  | 783 | config DEVFS_DEBUG | 
|  | 784 | bool "Debug devfs" | 
|  | 785 | depends on DEVFS_FS | 
|  | 786 | help | 
|  | 787 | If you say Y here, then the /dev file system code will generate | 
|  | 788 | debugging messages. See the file | 
|  | 789 | <file:Documentation/filesystems/devfs/boot-options> for more | 
|  | 790 | details. | 
|  | 791 |  | 
|  | 792 | If unsure, say N. | 
|  | 793 |  | 
|  | 794 | config DEVPTS_FS_XATTR | 
|  | 795 | bool "/dev/pts Extended Attributes" | 
|  | 796 | depends on UNIX98_PTYS | 
|  | 797 | help | 
|  | 798 | Extended attributes are name:value pairs associated with inodes by | 
|  | 799 | the kernel or by users (see the attr(5) manual page, or visit | 
|  | 800 | <http://acl.bestbits.at/> for details). | 
|  | 801 |  | 
|  | 802 | If unsure, say N. | 
|  | 803 |  | 
|  | 804 | config DEVPTS_FS_SECURITY | 
|  | 805 | bool "/dev/pts Security Labels" | 
|  | 806 | depends on DEVPTS_FS_XATTR | 
|  | 807 | help | 
|  | 808 | Security labels support alternative access control models | 
|  | 809 | implemented by security modules like SELinux.  This option | 
|  | 810 | enables an extended attribute handler for file security | 
|  | 811 | labels in the /dev/pts filesystem. | 
|  | 812 |  | 
|  | 813 | If you are not using a security module that requires using | 
|  | 814 | extended attributes for file security labels, say N. | 
|  | 815 |  | 
|  | 816 | config TMPFS | 
|  | 817 | bool "Virtual memory file system support (former shm fs)" | 
|  | 818 | help | 
|  | 819 | Tmpfs is a file system which keeps all files in virtual memory. | 
|  | 820 |  | 
|  | 821 | Everything in tmpfs is temporary in the sense that no files will be | 
|  | 822 | created on your hard drive. The files live in memory and swap | 
|  | 823 | space. If you unmount a tmpfs instance, everything stored therein is | 
|  | 824 | lost. | 
|  | 825 |  | 
|  | 826 | See <file:Documentation/filesystems/tmpfs.txt> for details. | 
|  | 827 |  | 
|  | 828 | config TMPFS_XATTR | 
|  | 829 | bool "tmpfs Extended Attributes" | 
|  | 830 | depends on TMPFS | 
|  | 831 | help | 
|  | 832 | Extended attributes are name:value pairs associated with inodes by | 
|  | 833 | the kernel or by users (see the attr(5) manual page, or visit | 
|  | 834 | <http://acl.bestbits.at/> for details). | 
|  | 835 |  | 
|  | 836 | If unsure, say N. | 
|  | 837 |  | 
|  | 838 | config TMPFS_SECURITY | 
|  | 839 | bool "tmpfs Security Labels" | 
|  | 840 | depends on TMPFS_XATTR | 
|  | 841 | help | 
|  | 842 | Security labels support alternative access control models | 
|  | 843 | implemented by security modules like SELinux.  This option | 
|  | 844 | enables an extended attribute handler for file security | 
|  | 845 | labels in the tmpfs filesystem. | 
|  | 846 | If you are not using a security module that requires using | 
|  | 847 | extended attributes for file security labels, say N. | 
|  | 848 |  | 
|  | 849 | config HUGETLBFS | 
|  | 850 | bool "HugeTLB file system support" | 
|  | 851 | depends X86 || IA64 || PPC64 || SPARC64 || SUPERH || X86_64 || BROKEN | 
|  | 852 |  | 
|  | 853 | config HUGETLB_PAGE | 
|  | 854 | def_bool HUGETLBFS | 
|  | 855 |  | 
|  | 856 | config RAMFS | 
|  | 857 | bool | 
|  | 858 | default y | 
|  | 859 | ---help--- | 
|  | 860 | Ramfs is a file system which keeps all files in RAM. It allows | 
|  | 861 | read and write access. | 
|  | 862 |  | 
|  | 863 | It is more of an programming example than a useable file system.  If | 
|  | 864 | you need a file system which lives in RAM with limit checking use | 
|  | 865 | tmpfs. | 
|  | 866 |  | 
|  | 867 | To compile this as a module, choose M here: the module will be called | 
|  | 868 | ramfs. | 
|  | 869 |  | 
|  | 870 | endmenu | 
|  | 871 |  | 
|  | 872 | menu "Miscellaneous filesystems" | 
|  | 873 |  | 
|  | 874 | config ADFS_FS | 
|  | 875 | tristate "ADFS file system support (EXPERIMENTAL)" | 
|  | 876 | depends on EXPERIMENTAL | 
|  | 877 | help | 
|  | 878 | The Acorn Disc Filing System is the standard file system of the | 
|  | 879 | RiscOS operating system which runs on Acorn's ARM-based Risc PC | 
|  | 880 | systems and the Acorn Archimedes range of machines. If you say Y | 
|  | 881 | here, Linux will be able to read from ADFS partitions on hard drives | 
|  | 882 | and from ADFS-formatted floppy discs. If you also want to be able to | 
|  | 883 | write to those devices, say Y to "ADFS write support" below. | 
|  | 884 |  | 
|  | 885 | The ADFS partition should be the first partition (i.e., | 
|  | 886 | /dev/[hs]d?1) on each of your drives. Please read the file | 
|  | 887 | <file:Documentation/filesystems/adfs.txt> for further details. | 
|  | 888 |  | 
|  | 889 | To compile this code as a module, choose M here: the module will be | 
|  | 890 | called adfs. | 
|  | 891 |  | 
|  | 892 | If unsure, say N. | 
|  | 893 |  | 
|  | 894 | config ADFS_FS_RW | 
|  | 895 | bool "ADFS write support (DANGEROUS)" | 
|  | 896 | depends on ADFS_FS | 
|  | 897 | help | 
|  | 898 | If you say Y here, you will be able to write to ADFS partitions on | 
|  | 899 | hard drives and ADFS-formatted floppy disks. This is experimental | 
|  | 900 | codes, so if you're unsure, say N. | 
|  | 901 |  | 
|  | 902 | config AFFS_FS | 
|  | 903 | tristate "Amiga FFS file system support (EXPERIMENTAL)" | 
|  | 904 | depends on EXPERIMENTAL | 
|  | 905 | help | 
|  | 906 | The Fast File System (FFS) is the common file system used on hard | 
|  | 907 | disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20).  Say Y | 
|  | 908 | if you want to be able to read and write files from and to an Amiga | 
|  | 909 | FFS partition on your hard drive.  Amiga floppies however cannot be | 
|  | 910 | read with this driver due to an incompatibility of the floppy | 
|  | 911 | controller used in an Amiga and the standard floppy controller in | 
|  | 912 | PCs and workstations. Read <file:Documentation/filesystems/affs.txt> | 
|  | 913 | and <file:fs/affs/Changes>. | 
|  | 914 |  | 
|  | 915 | With this driver you can also mount disk files used by Bernd | 
|  | 916 | Schmidt's Un*X Amiga Emulator | 
|  | 917 | (<http://www.freiburg.linux.de/~uae/>). | 
|  | 918 | If you want to do this, you will also need to say Y or M to "Loop | 
|  | 919 | device support", above. | 
|  | 920 |  | 
|  | 921 | To compile this file system support as a module, choose M here: the | 
|  | 922 | module will be called affs.  If unsure, say N. | 
|  | 923 |  | 
|  | 924 | config HFS_FS | 
|  | 925 | tristate "Apple Macintosh file system support (EXPERIMENTAL)" | 
|  | 926 | depends on EXPERIMENTAL | 
|  | 927 | help | 
|  | 928 | If you say Y here, you will be able to mount Macintosh-formatted | 
|  | 929 | floppy disks and hard drive partitions with full read-write access. | 
|  | 930 | Please read <file:fs/hfs/HFS.txt> to learn about the available mount | 
|  | 931 | options. | 
|  | 932 |  | 
|  | 933 | To compile this file system support as a module, choose M here: the | 
|  | 934 | module will be called hfs. | 
|  | 935 |  | 
|  | 936 | config HFSPLUS_FS | 
|  | 937 | tristate "Apple Extended HFS file system support" | 
|  | 938 | select NLS | 
|  | 939 | select NLS_UTF8 | 
|  | 940 | help | 
|  | 941 | If you say Y here, you will be able to mount extended format | 
|  | 942 | Macintosh-formatted hard drive partitions with full read-write access. | 
|  | 943 |  | 
|  | 944 | This file system is often called HFS+ and was introduced with | 
|  | 945 | MacOS 8. It includes all Mac specific filesystem data such as | 
|  | 946 | data forks and creator codes, but it also has several UNIX | 
|  | 947 | style features such as file ownership and permissions. | 
|  | 948 |  | 
|  | 949 | config BEFS_FS | 
|  | 950 | tristate "BeOS file system (BeFS) support (read only) (EXPERIMENTAL)" | 
|  | 951 | depends on EXPERIMENTAL | 
|  | 952 | select NLS | 
|  | 953 | help | 
|  | 954 | The BeOS File System (BeFS) is the native file system of Be, Inc's | 
|  | 955 | BeOS. Notable features include support for arbitrary attributes | 
|  | 956 | on files and directories, and database-like indeces on selected | 
|  | 957 | attributes. (Also note that this driver doesn't make those features | 
|  | 958 | available at this time). It is a 64 bit filesystem, so it supports | 
|  | 959 | extremly large volumes and files. | 
|  | 960 |  | 
|  | 961 | If you use this filesystem, you should also say Y to at least one | 
|  | 962 | of the NLS (native language support) options below. | 
|  | 963 |  | 
|  | 964 | If you don't know what this is about, say N. | 
|  | 965 |  | 
|  | 966 | To compile this as a module, choose M here: the module will be | 
|  | 967 | called befs. | 
|  | 968 |  | 
|  | 969 | config BEFS_DEBUG | 
|  | 970 | bool "Debug BeFS" | 
|  | 971 | depends on BEFS_FS | 
|  | 972 | help | 
|  | 973 | If you say Y here, you can use the 'debug' mount option to enable | 
|  | 974 | debugging output from the driver. | 
|  | 975 |  | 
|  | 976 | config BFS_FS | 
|  | 977 | tristate "BFS file system support (EXPERIMENTAL)" | 
|  | 978 | depends on EXPERIMENTAL | 
|  | 979 | help | 
|  | 980 | Boot File System (BFS) is a file system used under SCO UnixWare to | 
|  | 981 | allow the bootloader access to the kernel image and other important | 
|  | 982 | files during the boot process.  It is usually mounted under /stand | 
|  | 983 | and corresponds to the slice marked as "STAND" in the UnixWare | 
|  | 984 | partition.  You should say Y if you want to read or write the files | 
|  | 985 | on your /stand slice from within Linux.  You then also need to say Y | 
|  | 986 | to "UnixWare slices support", below.  More information about the BFS | 
|  | 987 | file system is contained in the file | 
|  | 988 | <file:Documentation/filesystems/bfs.txt>. | 
|  | 989 |  | 
|  | 990 | If you don't know what this is about, say N. | 
|  | 991 |  | 
|  | 992 | To compile this as a module, choose M here: the module will be called | 
|  | 993 | bfs.  Note that the file system of your root partition (the one | 
|  | 994 | containing the directory /) cannot be compiled as a module. | 
|  | 995 |  | 
|  | 996 |  | 
|  | 997 |  | 
|  | 998 | config EFS_FS | 
|  | 999 | tristate "EFS file system support (read only) (EXPERIMENTAL)" | 
|  | 1000 | depends on EXPERIMENTAL | 
|  | 1001 | help | 
|  | 1002 | EFS is an older file system used for non-ISO9660 CD-ROMs and hard | 
|  | 1003 | disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer | 
|  | 1004 | uses the XFS file system for hard disk partitions however). | 
|  | 1005 |  | 
|  | 1006 | This implementation only offers read-only access. If you don't know | 
|  | 1007 | what all this is about, it's safe to say N. For more information | 
|  | 1008 | about EFS see its home page at <http://aeschi.ch.eu.org/efs/>. | 
|  | 1009 |  | 
|  | 1010 | To compile the EFS file system support as a module, choose M here: the | 
|  | 1011 | module will be called efs. | 
|  | 1012 |  | 
|  | 1013 | config JFFS_FS | 
|  | 1014 | tristate "Journalling Flash File System (JFFS) support" | 
|  | 1015 | depends on MTD | 
|  | 1016 | help | 
|  | 1017 | JFFS is the Journaling Flash File System developed by Axis | 
|  | 1018 | Communications in Sweden, aimed at providing a crash/powerdown-safe | 
|  | 1019 | file system for disk-less embedded devices. Further information is | 
|  | 1020 | available at (<http://developer.axis.com/software/jffs/>). | 
|  | 1021 |  | 
|  | 1022 | config JFFS_FS_VERBOSE | 
|  | 1023 | int "JFFS debugging verbosity (0 = quiet, 3 = noisy)" | 
|  | 1024 | depends on JFFS_FS | 
|  | 1025 | default "0" | 
|  | 1026 | help | 
|  | 1027 | Determines the verbosity level of the JFFS debugging messages. | 
|  | 1028 |  | 
|  | 1029 | config JFFS_PROC_FS | 
|  | 1030 | bool "JFFS stats available in /proc filesystem" | 
|  | 1031 | depends on JFFS_FS && PROC_FS | 
|  | 1032 | help | 
|  | 1033 | Enabling this option will cause statistics from mounted JFFS file systems | 
|  | 1034 | to be made available to the user in the /proc/fs/jffs/ directory. | 
|  | 1035 |  | 
|  | 1036 | config JFFS2_FS | 
|  | 1037 | tristate "Journalling Flash File System v2 (JFFS2) support" | 
|  | 1038 | select CRC32 | 
|  | 1039 | depends on MTD | 
|  | 1040 | help | 
|  | 1041 | JFFS2 is the second generation of the Journalling Flash File System | 
|  | 1042 | for use on diskless embedded devices. It provides improved wear | 
|  | 1043 | levelling, compression and support for hard links. You cannot use | 
|  | 1044 | this on normal block devices, only on 'MTD' devices. | 
|  | 1045 |  | 
|  | 1046 | Further information on the design and implementation of JFFS2 is | 
|  | 1047 | available at <http://sources.redhat.com/jffs2/>. | 
|  | 1048 |  | 
|  | 1049 | config JFFS2_FS_DEBUG | 
|  | 1050 | int "JFFS2 debugging verbosity (0 = quiet, 2 = noisy)" | 
|  | 1051 | depends on JFFS2_FS | 
|  | 1052 | default "0" | 
|  | 1053 | help | 
|  | 1054 | This controls the amount of debugging messages produced by the JFFS2 | 
|  | 1055 | code. Set it to zero for use in production systems. For evaluation, | 
|  | 1056 | testing and debugging, it's advisable to set it to one. This will | 
|  | 1057 | enable a few assertions and will print debugging messages at the | 
|  | 1058 | KERN_DEBUG loglevel, where they won't normally be visible. Level 2 | 
|  | 1059 | is unlikely to be useful - it enables extra debugging in certain | 
|  | 1060 | areas which at one point needed debugging, but when the bugs were | 
|  | 1061 | located and fixed, the detailed messages were relegated to level 2. | 
|  | 1062 |  | 
|  | 1063 | If reporting bugs, please try to have available a full dump of the | 
|  | 1064 | messages at debug level 1 while the misbehaviour was occurring. | 
|  | 1065 |  | 
| Andrew Victor | 2f82ce1 | 2005-02-09 09:24:26 +0000 | [diff] [blame^] | 1066 | config JFFS2_FS_WRITEBUFFER | 
|  | 1067 | bool "JFFS2 write-buffering support" | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | depends on JFFS2_FS | 
| Andrew Victor | 2f82ce1 | 2005-02-09 09:24:26 +0000 | [diff] [blame^] | 1069 | default y | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1070 | help | 
| Andrew Victor | 2f82ce1 | 2005-02-09 09:24:26 +0000 | [diff] [blame^] | 1071 | This enables the write-buffering support in JFFS2. | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1072 |  | 
| Andrew Victor | 2f82ce1 | 2005-02-09 09:24:26 +0000 | [diff] [blame^] | 1073 | This functionality is required to support JFFS2 on the following | 
|  | 1074 | types of flash devices: | 
|  | 1075 | - NAND flash | 
|  | 1076 | - NOR flash with transparent ECC | 
|  | 1077 | - DataFlash | 
| Andrew Victor | 8f15fd5 | 2005-02-09 09:17:45 +0000 | [diff] [blame] | 1078 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | config JFFS2_COMPRESSION_OPTIONS | 
|  | 1080 | bool "Advanced compression options for JFFS2" | 
|  | 1081 | depends on JFFS2_FS | 
|  | 1082 | default n | 
|  | 1083 | help | 
|  | 1084 | Enabling this option allows you to explicitly choose which | 
|  | 1085 | compression modules, if any, are enabled in JFFS2. Removing | 
|  | 1086 | compressors and mean you cannot read existing file systems, | 
|  | 1087 | and enabling experimental compressors can mean that you | 
|  | 1088 | write a file system which cannot be read by a standard kernel. | 
|  | 1089 |  | 
|  | 1090 | If unsure, you should _definitely_ say 'N'. | 
|  | 1091 |  | 
|  | 1092 | config JFFS2_ZLIB | 
|  | 1093 | bool "JFFS2 ZLIB compression support" if JFFS2_COMPRESSION_OPTIONS | 
|  | 1094 | select ZLIB_INFLATE | 
|  | 1095 | select ZLIB_DEFLATE | 
|  | 1096 | depends on JFFS2_FS | 
|  | 1097 | default y | 
|  | 1098 | help | 
|  | 1099 | Zlib is designed to be a free, general-purpose, legally unencumbered, | 
|  | 1100 | lossless data-compression library for use on virtually any computer | 
|  | 1101 | hardware and operating system. See <http://www.gzip.org/zlib/> for | 
|  | 1102 | further information. | 
|  | 1103 |  | 
|  | 1104 | Say 'Y' if unsure. | 
|  | 1105 |  | 
|  | 1106 | config JFFS2_RTIME | 
|  | 1107 | bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS | 
|  | 1108 | depends on JFFS2_FS | 
|  | 1109 | default y | 
|  | 1110 | help | 
|  | 1111 | Rtime does manage to recompress already-compressed data. Say 'Y' if unsure. | 
|  | 1112 |  | 
|  | 1113 | config JFFS2_RUBIN | 
|  | 1114 | bool "JFFS2 RUBIN compression support" if JFFS2_COMPRESSION_OPTIONS | 
|  | 1115 | depends on JFFS2_FS | 
|  | 1116 | default n | 
|  | 1117 | help | 
|  | 1118 | RUBINMIPS and DYNRUBIN compressors. Say 'N' if unsure. | 
|  | 1119 |  | 
|  | 1120 | choice | 
|  | 1121 | prompt "JFFS2 default compression mode" if JFFS2_COMPRESSION_OPTIONS | 
|  | 1122 | default JFFS2_CMODE_PRIORITY | 
|  | 1123 | depends on JFFS2_FS | 
|  | 1124 | help | 
|  | 1125 | You can set here the default compression mode of JFFS2 from | 
|  | 1126 | the available compression modes. Don't touch if unsure. | 
|  | 1127 |  | 
|  | 1128 | config JFFS2_CMODE_NONE | 
|  | 1129 | bool "no compression" | 
|  | 1130 | help | 
|  | 1131 | Uses no compression. | 
|  | 1132 |  | 
|  | 1133 | config JFFS2_CMODE_PRIORITY | 
|  | 1134 | bool "priority" | 
|  | 1135 | help | 
|  | 1136 | Tries the compressors in a predefinied order and chooses the first | 
|  | 1137 | successful one. | 
|  | 1138 |  | 
|  | 1139 | config JFFS2_CMODE_SIZE | 
|  | 1140 | bool "size (EXPERIMENTAL)" | 
|  | 1141 | help | 
|  | 1142 | Tries all compressors and chooses the one which has the smallest | 
|  | 1143 | result. | 
|  | 1144 |  | 
|  | 1145 | endchoice | 
|  | 1146 |  | 
|  | 1147 | config CRAMFS | 
|  | 1148 | tristate "Compressed ROM file system support (cramfs)" | 
|  | 1149 | select ZLIB_INFLATE | 
|  | 1150 | help | 
|  | 1151 | Saying Y here includes support for CramFs (Compressed ROM File | 
|  | 1152 | System).  CramFs is designed to be a simple, small, and compressed | 
|  | 1153 | file system for ROM based embedded systems.  CramFs is read-only, | 
|  | 1154 | limited to 256MB file systems (with 16MB files), and doesn't support | 
|  | 1155 | 16/32 bits uid/gid, hard links and timestamps. | 
|  | 1156 |  | 
|  | 1157 | See <file:Documentation/filesystems/cramfs.txt> and | 
|  | 1158 | <file:fs/cramfs/README> for further information. | 
|  | 1159 |  | 
|  | 1160 | To compile this as a module, choose M here: the module will be called | 
|  | 1161 | cramfs.  Note that the root file system (the one containing the | 
|  | 1162 | directory /) cannot be compiled as a module. | 
|  | 1163 |  | 
|  | 1164 | If unsure, say N. | 
|  | 1165 |  | 
|  | 1166 | config VXFS_FS | 
|  | 1167 | tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)" | 
|  | 1168 | help | 
|  | 1169 | FreeVxFS is a file system driver that support the VERITAS VxFS(TM) | 
|  | 1170 | file system format.  VERITAS VxFS(TM) is the standard file system | 
|  | 1171 | of SCO UnixWare (and possibly others) and optionally available | 
|  | 1172 | for Sunsoft Solaris, HP-UX and many other operating systems. | 
|  | 1173 | Currently only readonly access is supported. | 
|  | 1174 |  | 
|  | 1175 | NOTE: the file system type as used by mount(1), mount(2) and | 
|  | 1176 | fstab(5) is 'vxfs' as it describes the file system format, not | 
|  | 1177 | the actual driver. | 
|  | 1178 |  | 
|  | 1179 | To compile this as a module, choose M here: the module will be | 
|  | 1180 | called freevxfs.  If unsure, say N. | 
|  | 1181 |  | 
|  | 1182 |  | 
|  | 1183 | config HPFS_FS | 
|  | 1184 | tristate "OS/2 HPFS file system support" | 
|  | 1185 | help | 
|  | 1186 | OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS | 
|  | 1187 | is the file system used for organizing files on OS/2 hard disk | 
|  | 1188 | partitions. Say Y if you want to be able to read files from and | 
|  | 1189 | write files to an OS/2 HPFS partition on your hard drive. OS/2 | 
|  | 1190 | floppies however are in regular MSDOS format, so you don't need this | 
|  | 1191 | option in order to be able to read them. Read | 
|  | 1192 | <file:Documentation/filesystems/hpfs.txt>. | 
|  | 1193 |  | 
|  | 1194 | To compile this file system support as a module, choose M here: the | 
|  | 1195 | module will be called hpfs.  If unsure, say N. | 
|  | 1196 |  | 
|  | 1197 |  | 
|  | 1198 |  | 
|  | 1199 | config QNX4FS_FS | 
|  | 1200 | tristate "QNX4 file system support (read only)" | 
|  | 1201 | help | 
|  | 1202 | This is the file system used by the real-time operating systems | 
|  | 1203 | QNX 4 and QNX 6 (the latter is also called QNX RTP). | 
|  | 1204 | Further information is available at <http://www.qnx.com/>. | 
|  | 1205 | Say Y if you intend to mount QNX hard disks or floppies. | 
|  | 1206 | Unless you say Y to "QNX4FS read-write support" below, you will | 
|  | 1207 | only be able to read these file systems. | 
|  | 1208 |  | 
|  | 1209 | To compile this file system support as a module, choose M here: the | 
|  | 1210 | module will be called qnx4. | 
|  | 1211 |  | 
|  | 1212 | If you don't know whether you need it, then you don't need it: | 
|  | 1213 | answer N. | 
|  | 1214 |  | 
|  | 1215 | config QNX4FS_RW | 
|  | 1216 | bool "QNX4FS write support (DANGEROUS)" | 
|  | 1217 | depends on QNX4FS_FS && EXPERIMENTAL && BROKEN | 
|  | 1218 | help | 
|  | 1219 | Say Y if you want to test write support for QNX4 file systems. | 
|  | 1220 |  | 
|  | 1221 | It's currently broken, so for now: | 
|  | 1222 | answer N. | 
|  | 1223 |  | 
|  | 1224 |  | 
|  | 1225 |  | 
|  | 1226 | config SYSV_FS | 
|  | 1227 | tristate "System V/Xenix/V7/Coherent file system support" | 
|  | 1228 | help | 
|  | 1229 | SCO, Xenix and Coherent are commercial Unix systems for Intel | 
|  | 1230 | machines, and Version 7 was used on the DEC PDP-11. Saying Y | 
|  | 1231 | here would allow you to read from their floppies and hard disk | 
|  | 1232 | partitions. | 
|  | 1233 |  | 
|  | 1234 | If you have floppies or hard disk partitions like that, it is likely | 
|  | 1235 | that they contain binaries from those other Unix systems; in order | 
|  | 1236 | to run these binaries, you will want to install linux-abi which is a | 
|  | 1237 | a set of kernel modules that lets you run SCO, Xenix, Wyse, | 
|  | 1238 | UnixWare, Dell Unix and System V programs under Linux.  It is | 
|  | 1239 | available via FTP (user: ftp) from | 
|  | 1240 | <ftp://ftp.openlinux.org/pub/people/hch/linux-abi/>). | 
|  | 1241 | NOTE: that will work only for binaries from Intel-based systems; | 
|  | 1242 | PDP ones will have to wait until somebody ports Linux to -11 ;-) | 
|  | 1243 |  | 
|  | 1244 | If you only intend to mount files from some other Unix over the | 
|  | 1245 | network using NFS, you don't need the System V file system support | 
|  | 1246 | (but you need NFS file system support obviously). | 
|  | 1247 |  | 
|  | 1248 | Note that this option is generally not needed for floppies, since a | 
|  | 1249 | good portable way to transport files and directories between unixes | 
|  | 1250 | (and even other operating systems) is given by the tar program ("man | 
|  | 1251 | tar" or preferably "info tar").  Note also that this option has | 
|  | 1252 | nothing whatsoever to do with the option "System V IPC". Read about | 
|  | 1253 | the System V file system in | 
|  | 1254 | <file:Documentation/filesystems/sysv-fs.txt>. | 
|  | 1255 | Saying Y here will enlarge your kernel by about 27 KB. | 
|  | 1256 |  | 
|  | 1257 | To compile this as a module, choose M here: the module will be called | 
|  | 1258 | sysv. | 
|  | 1259 |  | 
|  | 1260 | If you haven't heard about all of this before, it's safe to say N. | 
|  | 1261 |  | 
|  | 1262 |  | 
|  | 1263 |  | 
|  | 1264 | config UFS_FS | 
|  | 1265 | tristate "UFS file system support (read only)" | 
|  | 1266 | help | 
|  | 1267 | BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD, | 
|  | 1268 | OpenBSD and NeXTstep) use a file system called UFS. Some System V | 
|  | 1269 | Unixes can create and mount hard disk partitions and diskettes using | 
|  | 1270 | this file system as well. Saying Y here will allow you to read from | 
|  | 1271 | these partitions; if you also want to write to them, say Y to the | 
|  | 1272 | experimental "UFS file system write support", below. Please read the | 
|  | 1273 | file <file:Documentation/filesystems/ufs.txt> for more information. | 
|  | 1274 |  | 
|  | 1275 | The recently released UFS2 variant (used in FreeBSD 5.x) is | 
|  | 1276 | READ-ONLY supported. | 
|  | 1277 |  | 
|  | 1278 | If you only intend to mount files from some other Unix over the | 
|  | 1279 | network using NFS, you don't need the UFS file system support (but | 
|  | 1280 | you need NFS file system support obviously). | 
|  | 1281 |  | 
|  | 1282 | Note that this option is generally not needed for floppies, since a | 
|  | 1283 | good portable way to transport files and directories between unixes | 
|  | 1284 | (and even other operating systems) is given by the tar program ("man | 
|  | 1285 | tar" or preferably "info tar"). | 
|  | 1286 |  | 
|  | 1287 | When accessing NeXTstep files, you may need to convert them from the | 
|  | 1288 | NeXT character set to the Latin1 character set; use the program | 
|  | 1289 | recode ("info recode") for this purpose. | 
|  | 1290 |  | 
|  | 1291 | To compile the UFS file system support as a module, choose M here: the | 
|  | 1292 | module will be called ufs. | 
|  | 1293 |  | 
|  | 1294 | If you haven't heard about all of this before, it's safe to say N. | 
|  | 1295 |  | 
|  | 1296 | config UFS_FS_WRITE | 
|  | 1297 | bool "UFS file system write support (DANGEROUS)" | 
|  | 1298 | depends on UFS_FS && EXPERIMENTAL | 
|  | 1299 | help | 
|  | 1300 | Say Y here if you want to try writing to UFS partitions. This is | 
|  | 1301 | experimental, so you should back up your UFS partitions beforehand. | 
|  | 1302 |  | 
|  | 1303 | endmenu | 
|  | 1304 |  | 
|  | 1305 | menu "Network File Systems" | 
|  | 1306 | depends on NET | 
|  | 1307 |  | 
|  | 1308 | config NFS_FS | 
|  | 1309 | tristate "NFS file system support" | 
|  | 1310 | depends on INET | 
|  | 1311 | select LOCKD | 
|  | 1312 | select SUNRPC | 
|  | 1313 | help | 
|  | 1314 | If you are connected to some other (usually local) Unix computer | 
|  | 1315 | (using SLIP, PLIP, PPP or Ethernet) and want to mount files residing | 
|  | 1316 | on that computer (the NFS server) using the Network File Sharing | 
|  | 1317 | protocol, say Y. "Mounting files" means that the client can access | 
|  | 1318 | the files with usual UNIX commands as if they were sitting on the | 
|  | 1319 | client's hard disk. For this to work, the server must run the | 
|  | 1320 | programs nfsd and mountd (but does not need to have NFS file system | 
|  | 1321 | support enabled in its kernel). NFS is explained in the Network | 
|  | 1322 | Administrator's Guide, available from | 
|  | 1323 | <http://www.tldp.org/docs.html#guide>, on its man page: "man | 
|  | 1324 | nfs", and in the NFS-HOWTO. | 
|  | 1325 |  | 
|  | 1326 | A superior but less widely used alternative to NFS is provided by | 
|  | 1327 | the Coda file system; see "Coda file system support" below. | 
|  | 1328 |  | 
|  | 1329 | If you say Y here, you should have said Y to TCP/IP networking also. | 
|  | 1330 | This option would enlarge your kernel by about 27 KB. | 
|  | 1331 |  | 
|  | 1332 | To compile this file system support as a module, choose M here: the | 
|  | 1333 | module will be called nfs. | 
|  | 1334 |  | 
|  | 1335 | If you are configuring a diskless machine which will mount its root | 
|  | 1336 | file system over NFS at boot time, say Y here and to "Kernel | 
|  | 1337 | level IP autoconfiguration" above and to "Root file system on NFS" | 
|  | 1338 | below. You cannot compile this driver as a module in this case. | 
|  | 1339 | There are two packages designed for booting diskless machines over | 
|  | 1340 | the net: netboot, available from | 
|  | 1341 | <http://ftp1.sourceforge.net/netboot/>, and Etherboot, | 
|  | 1342 | available from <http://ftp1.sourceforge.net/etherboot/>. | 
|  | 1343 |  | 
|  | 1344 | If you don't know what all this is about, say N. | 
|  | 1345 |  | 
|  | 1346 | config NFS_V3 | 
|  | 1347 | bool "Provide NFSv3 client support" | 
|  | 1348 | depends on NFS_FS | 
|  | 1349 | help | 
|  | 1350 | Say Y here if you want your NFS client to be able to speak version | 
|  | 1351 | 3 of the NFS protocol. | 
|  | 1352 |  | 
|  | 1353 | If unsure, say Y. | 
|  | 1354 |  | 
|  | 1355 | config NFS_V4 | 
|  | 1356 | bool "Provide NFSv4 client support (EXPERIMENTAL)" | 
|  | 1357 | depends on NFS_FS && EXPERIMENTAL | 
|  | 1358 | select RPCSEC_GSS_KRB5 | 
|  | 1359 | help | 
|  | 1360 | Say Y here if you want your NFS client to be able to speak the newer | 
|  | 1361 | version 4 of the NFS protocol. | 
|  | 1362 |  | 
|  | 1363 | Note: Requires auxiliary userspace daemons which may be found on | 
|  | 1364 | http://www.citi.umich.edu/projects/nfsv4/ | 
|  | 1365 |  | 
|  | 1366 | If unsure, say N. | 
|  | 1367 |  | 
|  | 1368 | config NFS_DIRECTIO | 
|  | 1369 | bool "Allow direct I/O on NFS files (EXPERIMENTAL)" | 
|  | 1370 | depends on NFS_FS && EXPERIMENTAL | 
|  | 1371 | help | 
|  | 1372 | This option enables applications to perform uncached I/O on files | 
|  | 1373 | in NFS file systems using the O_DIRECT open() flag.  When O_DIRECT | 
|  | 1374 | is set for a file, its data is not cached in the system's page | 
|  | 1375 | cache.  Data is moved to and from user-level application buffers | 
|  | 1376 | directly.  Unlike local disk-based file systems, NFS O_DIRECT has | 
|  | 1377 | no alignment restrictions. | 
|  | 1378 |  | 
|  | 1379 | Unless your program is designed to use O_DIRECT properly, you are | 
|  | 1380 | much better off allowing the NFS client to manage data caching for | 
|  | 1381 | you.  Misusing O_DIRECT can cause poor server performance or network | 
|  | 1382 | storms.  This kernel build option defaults OFF to avoid exposing | 
|  | 1383 | system administrators unwittingly to a potentially hazardous | 
|  | 1384 | feature. | 
|  | 1385 |  | 
|  | 1386 | For more details on NFS O_DIRECT, see fs/nfs/direct.c. | 
|  | 1387 |  | 
|  | 1388 | If unsure, say N.  This reduces the size of the NFS client, and | 
|  | 1389 | causes open() to return EINVAL if a file residing in NFS is | 
|  | 1390 | opened with the O_DIRECT flag. | 
|  | 1391 |  | 
|  | 1392 | config NFSD | 
|  | 1393 | tristate "NFS server support" | 
|  | 1394 | depends on INET | 
|  | 1395 | select LOCKD | 
|  | 1396 | select SUNRPC | 
|  | 1397 | select EXPORTFS | 
|  | 1398 | help | 
|  | 1399 | If you want your Linux box to act as an NFS *server*, so that other | 
|  | 1400 | computers on your local network which support NFS can access certain | 
|  | 1401 | directories on your box transparently, you have two options: you can | 
|  | 1402 | use the self-contained user space program nfsd, in which case you | 
|  | 1403 | should say N here, or you can say Y and use the kernel based NFS | 
|  | 1404 | server. The advantage of the kernel based solution is that it is | 
|  | 1405 | faster. | 
|  | 1406 |  | 
|  | 1407 | In either case, you will need support software; the respective | 
|  | 1408 | locations are given in the file <file:Documentation/Changes> in the | 
|  | 1409 | NFS section. | 
|  | 1410 |  | 
|  | 1411 | If you say Y here, you will get support for version 2 of the NFS | 
|  | 1412 | protocol (NFSv2). If you also want NFSv3, say Y to the next question | 
|  | 1413 | as well. | 
|  | 1414 |  | 
|  | 1415 | Please read the NFS-HOWTO, available from | 
|  | 1416 | <http://www.tldp.org/docs.html#howto>. | 
|  | 1417 |  | 
|  | 1418 | To compile the NFS server support as a module, choose M here: the | 
|  | 1419 | module will be called nfsd.  If unsure, say N. | 
|  | 1420 |  | 
|  | 1421 | config NFSD_V3 | 
|  | 1422 | bool "Provide NFSv3 server support" | 
|  | 1423 | depends on NFSD | 
|  | 1424 | help | 
|  | 1425 | If you would like to include the NFSv3 server as well as the NFSv2 | 
|  | 1426 | server, say Y here.  If unsure, say Y. | 
|  | 1427 |  | 
|  | 1428 | config NFSD_V4 | 
|  | 1429 | bool "Provide NFSv4 server support (EXPERIMENTAL)" | 
|  | 1430 | depends on NFSD_V3 && EXPERIMENTAL | 
|  | 1431 | select NFSD_TCP | 
|  | 1432 | help | 
|  | 1433 | If you would like to include the NFSv4 server as well as the NFSv2 | 
|  | 1434 | and NFSv3 servers, say Y here.  This feature is experimental, and | 
|  | 1435 | should only be used if you are interested in helping to test NFSv4. | 
|  | 1436 | If unsure, say N. | 
|  | 1437 |  | 
|  | 1438 | config NFSD_TCP | 
|  | 1439 | bool "Provide NFS server over TCP support" | 
|  | 1440 | depends on NFSD | 
|  | 1441 | default y | 
|  | 1442 | help | 
|  | 1443 | If you want your NFS server to support TCP connections, say Y here. | 
|  | 1444 | TCP connections usually perform better than the default UDP when | 
|  | 1445 | the network is lossy or congested.  If unsure, say Y. | 
|  | 1446 |  | 
|  | 1447 | config ROOT_NFS | 
|  | 1448 | bool "Root file system on NFS" | 
|  | 1449 | depends on NFS_FS=y && IP_PNP | 
|  | 1450 | help | 
|  | 1451 | If you want your Linux box to mount its whole root file system (the | 
|  | 1452 | one containing the directory /) from some other computer over the | 
|  | 1453 | net via NFS (presumably because your box doesn't have a hard disk), | 
|  | 1454 | say Y. Read <file:Documentation/nfsroot.txt> for details. It is | 
|  | 1455 | likely that in this case, you also want to say Y to "Kernel level IP | 
|  | 1456 | autoconfiguration" so that your box can discover its network address | 
|  | 1457 | at boot time. | 
|  | 1458 |  | 
|  | 1459 | Most people say N here. | 
|  | 1460 |  | 
|  | 1461 | config LOCKD | 
|  | 1462 | tristate | 
|  | 1463 |  | 
|  | 1464 | config LOCKD_V4 | 
|  | 1465 | bool | 
|  | 1466 | depends on NFSD_V3 || NFS_V3 | 
|  | 1467 | default y | 
|  | 1468 |  | 
|  | 1469 | config EXPORTFS | 
|  | 1470 | tristate | 
|  | 1471 |  | 
|  | 1472 | config SUNRPC | 
|  | 1473 | tristate | 
|  | 1474 |  | 
|  | 1475 | config SUNRPC_GSS | 
|  | 1476 | tristate | 
|  | 1477 |  | 
|  | 1478 | config RPCSEC_GSS_KRB5 | 
|  | 1479 | tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)" | 
|  | 1480 | depends on SUNRPC && EXPERIMENTAL | 
|  | 1481 | select SUNRPC_GSS | 
|  | 1482 | select CRYPTO | 
|  | 1483 | select CRYPTO_MD5 | 
|  | 1484 | select CRYPTO_DES | 
|  | 1485 | help | 
|  | 1486 | Provides for secure RPC calls by means of a gss-api | 
|  | 1487 | mechanism based on Kerberos V5. This is required for | 
|  | 1488 | NFSv4. | 
|  | 1489 |  | 
|  | 1490 | Note: Requires an auxiliary userspace daemon which may be found on | 
|  | 1491 | http://www.citi.umich.edu/projects/nfsv4/ | 
|  | 1492 |  | 
|  | 1493 | If unsure, say N. | 
|  | 1494 |  | 
|  | 1495 | config RPCSEC_GSS_SPKM3 | 
|  | 1496 | tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)" | 
|  | 1497 | depends on SUNRPC && EXPERIMENTAL | 
|  | 1498 | select SUNRPC_GSS | 
|  | 1499 | select CRYPTO | 
|  | 1500 | select CRYPTO_MD5 | 
|  | 1501 | select CRYPTO_DES | 
|  | 1502 | help | 
|  | 1503 | Provides for secure RPC calls by means of a gss-api | 
|  | 1504 | mechanism based on the SPKM3 public-key mechanism. | 
|  | 1505 |  | 
|  | 1506 | Note: Requires an auxiliary userspace daemon which may be found on | 
|  | 1507 | http://www.citi.umich.edu/projects/nfsv4/ | 
|  | 1508 |  | 
|  | 1509 | If unsure, say N. | 
|  | 1510 |  | 
|  | 1511 | config SMB_FS | 
|  | 1512 | tristate "SMB file system support (to mount Windows shares etc.)" | 
|  | 1513 | depends on INET | 
|  | 1514 | select NLS | 
|  | 1515 | help | 
|  | 1516 | SMB (Server Message Block) is the protocol Windows for Workgroups | 
|  | 1517 | (WfW), Windows 95/98, Windows NT and OS/2 Lan Manager use to share | 
|  | 1518 | files and printers over local networks.  Saying Y here allows you to | 
|  | 1519 | mount their file systems (often called "shares" in this context) and | 
|  | 1520 | access them just like any other Unix directory.  Currently, this | 
|  | 1521 | works only if the Windows machines use TCP/IP as the underlying | 
|  | 1522 | transport protocol, and not NetBEUI.  For details, read | 
|  | 1523 | <file:Documentation/filesystems/smbfs.txt> and the SMB-HOWTO, | 
|  | 1524 | available from <http://www.tldp.org/docs.html#howto>. | 
|  | 1525 |  | 
|  | 1526 | Note: if you just want your box to act as an SMB *server* and make | 
|  | 1527 | files and printing services available to Windows clients (which need | 
|  | 1528 | to have a TCP/IP stack), you don't need to say Y here; you can use | 
|  | 1529 | the program SAMBA (available from <ftp://ftp.samba.org/pub/samba/>) | 
|  | 1530 | for that. | 
|  | 1531 |  | 
|  | 1532 | General information about how to connect Linux, Windows machines and | 
|  | 1533 | Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>. | 
|  | 1534 |  | 
|  | 1535 | To compile the SMB support as a module, choose M here: the module will | 
|  | 1536 | be called smbfs.  Most people say N, however. | 
|  | 1537 |  | 
|  | 1538 | config SMB_NLS_DEFAULT | 
|  | 1539 | bool "Use a default NLS" | 
|  | 1540 | depends on SMB_FS | 
|  | 1541 | help | 
|  | 1542 | Enabling this will make smbfs use nls translations by default. You | 
|  | 1543 | need to specify the local charset (CONFIG_NLS_DEFAULT) in the nls | 
|  | 1544 | settings and you need to give the default nls for the SMB server as | 
|  | 1545 | CONFIG_SMB_NLS_REMOTE. | 
|  | 1546 |  | 
|  | 1547 | The nls settings can be changed at mount time, if your smbmount | 
|  | 1548 | supports that, using the codepage and iocharset parameters. | 
|  | 1549 |  | 
|  | 1550 | smbmount from samba 2.2.0 or later supports this. | 
|  | 1551 |  | 
|  | 1552 | config SMB_NLS_REMOTE | 
|  | 1553 | string "Default Remote NLS Option" | 
|  | 1554 | depends on SMB_NLS_DEFAULT | 
|  | 1555 | default "cp437" | 
|  | 1556 | help | 
|  | 1557 | This setting allows you to specify a default value for which | 
|  | 1558 | codepage the server uses. If this field is left blank no | 
|  | 1559 | translations will be done by default. The local codepage/charset | 
|  | 1560 | default to CONFIG_NLS_DEFAULT. | 
|  | 1561 |  | 
|  | 1562 | The nls settings can be changed at mount time, if your smbmount | 
|  | 1563 | supports that, using the codepage and iocharset parameters. | 
|  | 1564 |  | 
|  | 1565 | smbmount from samba 2.2.0 or later supports this. | 
|  | 1566 |  | 
|  | 1567 | config CIFS | 
|  | 1568 | tristate "CIFS support (advanced network filesystem for Samba, Window and other CIFS compliant servers)" | 
|  | 1569 | depends on INET | 
|  | 1570 | select NLS | 
|  | 1571 | help | 
|  | 1572 | This is the client VFS module for the Common Internet File System | 
|  | 1573 | (CIFS) protocol which is the successor to the Server Message Block | 
|  | 1574 | (SMB) protocol, the native file sharing mechanism for most early | 
|  | 1575 | PC operating systems.  The CIFS protocol is fully supported by | 
|  | 1576 | file servers such as Windows 2000 (including Windows 2003, NT 4 | 
|  | 1577 | and Windows XP) as well by Samba (which provides excellent CIFS | 
|  | 1578 | server support for Linux and many other operating systems). Currently | 
|  | 1579 | you must use the smbfs client filesystem to access older SMB servers | 
|  | 1580 | such as Windows 9x and OS/2. | 
|  | 1581 |  | 
|  | 1582 | The intent of the cifs module is to provide an advanced | 
|  | 1583 | network file system client for mounting to CIFS compliant servers, | 
|  | 1584 | including support for dfs (hierarchical name space), secure per-user | 
|  | 1585 | session establishment, safe distributed caching (oplock), optional | 
|  | 1586 | packet signing, Unicode and other internationalization improvements, | 
|  | 1587 | and optional Winbind (nsswitch) integration. You do not need to enable | 
|  | 1588 | cifs if running only a (Samba) server. It is possible to enable both | 
|  | 1589 | smbfs and cifs (e.g. if you are using CIFS for accessing Windows 2003 | 
|  | 1590 | and Samba 3 servers, and smbfs for accessing old servers). If you need | 
|  | 1591 | to mount to Samba or Windows 2003 servers from this machine, say Y. | 
|  | 1592 |  | 
|  | 1593 | config CIFS_STATS | 
|  | 1594 | bool "CIFS statistics" | 
|  | 1595 | depends on CIFS | 
|  | 1596 | help | 
|  | 1597 | Enabling this option will cause statistics for each server share | 
|  | 1598 | mounted by the cifs client to be displayed in /proc/fs/cifs/Stats | 
|  | 1599 |  | 
|  | 1600 | config CIFS_XATTR | 
|  | 1601 | bool "CIFS extended attributes (EXPERIMENTAL)" | 
|  | 1602 | depends on CIFS | 
|  | 1603 | help | 
|  | 1604 | Extended attributes are name:value pairs associated with inodes by | 
|  | 1605 | the kernel or by users (see the attr(5) manual page, or visit | 
|  | 1606 | <http://acl.bestbits.at/> for details).  CIFS maps the name of | 
|  | 1607 | extended attributes beginning with the user namespace prefix | 
|  | 1608 | to SMB/CIFS EAs. EAs are stored on Windows servers without the | 
|  | 1609 | user namespace prefix, but their names are seen by Linux cifs clients | 
|  | 1610 | prefaced by the user namespace prefix. The system namespace | 
|  | 1611 | (used by some filesystems to store ACLs) is not supported at | 
|  | 1612 | this time. | 
|  | 1613 |  | 
|  | 1614 | If unsure, say N. | 
|  | 1615 |  | 
|  | 1616 | config CIFS_POSIX | 
|  | 1617 | bool "CIFS POSIX Extensions (EXPERIMENTAL)" | 
|  | 1618 | depends on CIFS_XATTR | 
|  | 1619 | help | 
|  | 1620 | Enabling this option will cause the cifs client to attempt to | 
|  | 1621 | negotiate a newer dialect with servers, such as Samba 3.0.5 | 
|  | 1622 | or later, that optionally can handle more POSIX like (rather | 
|  | 1623 | than Windows like) file behavior.  It also enables | 
|  | 1624 | support for POSIX ACLs (getfacl and setfacl) to servers | 
|  | 1625 | (such as Samba 3.10 and later) which can negotiate | 
|  | 1626 | CIFS POSIX ACL support.  If unsure, say N. | 
|  | 1627 |  | 
|  | 1628 | config CIFS_EXPERIMENTAL | 
|  | 1629 | bool "CIFS Experimental Features (EXPERIMENTAL)" | 
|  | 1630 | depends on CIFS | 
|  | 1631 | help | 
|  | 1632 | Enables cifs features under testing. These features | 
|  | 1633 | are highly experimental.  If unsure, say N. | 
|  | 1634 |  | 
|  | 1635 | config NCP_FS | 
|  | 1636 | tristate "NCP file system support (to mount NetWare volumes)" | 
|  | 1637 | depends on IPX!=n || INET | 
|  | 1638 | help | 
|  | 1639 | NCP (NetWare Core Protocol) is a protocol that runs over IPX and is | 
|  | 1640 | used by Novell NetWare clients to talk to file servers.  It is to | 
|  | 1641 | IPX what NFS is to TCP/IP, if that helps.  Saying Y here allows you | 
|  | 1642 | to mount NetWare file server volumes and to access them just like | 
|  | 1643 | any other Unix directory.  For details, please read the file | 
|  | 1644 | <file:Documentation/filesystems/ncpfs.txt> in the kernel source and | 
|  | 1645 | the IPX-HOWTO from <http://www.tldp.org/docs.html#howto>. | 
|  | 1646 |  | 
|  | 1647 | You do not have to say Y here if you want your Linux box to act as a | 
|  | 1648 | file *server* for Novell NetWare clients. | 
|  | 1649 |  | 
|  | 1650 | General information about how to connect Linux, Windows machines and | 
|  | 1651 | Macs is on the WWW at <http://www.eats.com/linux_mac_win.html>. | 
|  | 1652 |  | 
|  | 1653 | To compile this as a module, choose M here: the module will be called | 
|  | 1654 | ncpfs.  Say N unless you are connected to a Novell network. | 
|  | 1655 |  | 
|  | 1656 | source "fs/ncpfs/Kconfig" | 
|  | 1657 |  | 
|  | 1658 | config CODA_FS | 
|  | 1659 | tristate "Coda file system support (advanced network fs)" | 
|  | 1660 | depends on INET | 
|  | 1661 | help | 
|  | 1662 | Coda is an advanced network file system, similar to NFS in that it | 
|  | 1663 | enables you to mount file systems of a remote server and access them | 
|  | 1664 | with regular Unix commands as if they were sitting on your hard | 
|  | 1665 | disk.  Coda has several advantages over NFS: support for | 
|  | 1666 | disconnected operation (e.g. for laptops), read/write server | 
|  | 1667 | replication, security model for authentication and encryption, | 
|  | 1668 | persistent client caches and write back caching. | 
|  | 1669 |  | 
|  | 1670 | If you say Y here, your Linux box will be able to act as a Coda | 
|  | 1671 | *client*.  You will need user level code as well, both for the | 
|  | 1672 | client and server.  Servers are currently user level, i.e. they need | 
|  | 1673 | no kernel support.  Please read | 
|  | 1674 | <file:Documentation/filesystems/coda.txt> and check out the Coda | 
|  | 1675 | home page <http://www.coda.cs.cmu.edu/>. | 
|  | 1676 |  | 
|  | 1677 | To compile the coda client support as a module, choose M here: the | 
|  | 1678 | module will be called coda. | 
|  | 1679 |  | 
|  | 1680 | config CODA_FS_OLD_API | 
|  | 1681 | bool "Use 96-bit Coda file identifiers" | 
|  | 1682 | depends on CODA_FS | 
|  | 1683 | help | 
|  | 1684 | A new kernel-userspace API had to be introduced for Coda v6.0 | 
|  | 1685 | to support larger 128-bit file identifiers as needed by the | 
|  | 1686 | new realms implementation. | 
|  | 1687 |  | 
|  | 1688 | However this new API is not backward compatible with older | 
|  | 1689 | clients. If you really need to run the old Coda userspace | 
|  | 1690 | cache manager then say Y. | 
|  | 1691 |  | 
|  | 1692 | For most cases you probably want to say N. | 
|  | 1693 |  | 
|  | 1694 | config AFS_FS | 
|  | 1695 | # for fs/nls/Config.in | 
|  | 1696 | tristate "Andrew File System support (AFS) (Experimental)" | 
|  | 1697 | depends on INET && EXPERIMENTAL | 
|  | 1698 | select RXRPC | 
|  | 1699 | help | 
|  | 1700 | If you say Y here, you will get an experimental Andrew File System | 
|  | 1701 | driver. It currently only supports unsecured read-only AFS access. | 
|  | 1702 |  | 
|  | 1703 | See <file:Documentation/filesystems/afs.txt> for more intormation. | 
|  | 1704 |  | 
|  | 1705 | If unsure, say N. | 
|  | 1706 |  | 
|  | 1707 | config RXRPC | 
|  | 1708 | tristate | 
|  | 1709 |  | 
|  | 1710 | endmenu | 
|  | 1711 |  | 
|  | 1712 | menu "Partition Types" | 
|  | 1713 |  | 
|  | 1714 | source "fs/partitions/Kconfig" | 
|  | 1715 |  | 
|  | 1716 | endmenu | 
|  | 1717 |  | 
|  | 1718 | source "fs/nls/Kconfig" | 
|  | 1719 |  | 
|  | 1720 | endmenu | 
|  | 1721 |  |