## File system configuration# menu "File systems" config EXT2_FS tristate "Second extended fs support" help Ext2 is a standard Linux file system for hard disks. To compile this file system support as a module, choose M here: the module will be called ext2. Be aware however that the file system of your root partition (the one containing the directory /) cannot be compiled as a module, and so this could be dangerous. If unsure, say Y. config EXT2_FS_XATTR bool "Ext2 extended attributes" depends on EXT2_FS help Extended attributes are name:value pairs associated with inodes by the kernel or by users (see the attr(5) manual page, or visit <http://acl.bestbits.at/> for details). If unsure, say N. config EXT2_FS_POSIX_ACL bool "Ext2 POSIX Access Control Lists" depends on EXT2_FS_XATTR select FS_POSIX_ACL help Posix Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. To learn more about Access Control Lists, visit the Posix ACLs for Linux website <http://acl.bestbits.at/>. If you don't know what Access Control Lists are, say N config EXT2_FS_SECURITY bool "Ext2 Security Labels" depends on EXT2_FS_XATTR help Security labels support alternative access control models implemented by security modules like SELinux. This option enables an extended attribute handler for file security labels in the ext2 filesystem. If you are not using a security module that requires using extended attributes for file security labels, say N. config EXT2_FS_XIP bool "Ext2 execute in place support" depends on EXT2_FS help Execute in place can be used on memory-backed block devices. If you enable this option, you can select to mount block devices which are capable of this feature without using the page cache. If you do not use a block device that is capable of using this, or if unsure, say N. config FS_XIP# execute in place bool depends on EXT2_FS_XIP default y config EXT3_FS tristate "Ext3 journalling file system support" select JBD help This is the journaling version of the Second extended file system (often called ext3), the de facto standard Linux file system (method to organize files on a storage device) for hard disks. The journaling code included in this driver means you do not have to run e2fsck (file system checker) on your file systems after a crash. The journal keeps track of any changes that were being made at the time the system crashed, and can ensure that your file system is consistent without the need for a lengthy check. Other than adding the journal to the file system, the on-disk format of ext3 is identical to ext2. It is possible to freely switch between using the ext3 driver and the ext2 driver, as long as the file system has been cleanly unmounted, or e2fsck is run on the file system. To add a journal on an existing ext2 file system or change the behavior of ext3 file systems, you can use the tune2fs utility ("man tune2fs"). To modify attributes of files and directories on ext3 file systems, use chattr ("man chattr"). You need to be using e2fsprogs version 1.20 or later in order to create ext3 journals (available at <http://sourceforge.net/projects/e2fsprogs/>). To compile this file system support as a module, choose M here: the module will be called ext3. Be aware however that the file system of your root partition (the one containing the directory /) cannot be compiled as a module, and so this may be dangerous. config EXT3_FS_XATTR bool "Ext3 extended attributes" depends on EXT3_FS default y help Extended attributes are name:value pairs associated with inodes by the kernel or by users (see the attr(5) manual page, or visit <http://acl.bestbits.at/> for details). If unsure, say N. You need this for POSIX ACL support on ext3. config EXT3_FS_POSIX_ACL bool "Ext3 POSIX Access Control Lists" depends on EXT3_FS_XATTR select FS_POSIX_ACL help Posix Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. To learn more about Access Control Lists, visit the Posix ACLs for Linux website <http://acl.bestbits.at/>. If you don't know what Access Control Lists are, say N config EXT3_FS_SECURITY bool "Ext3 Security Labels" depends on EXT3_FS_XATTR help Security labels support alternative access control models implemented by security modules like SELinux. This option enables an extended attribute handler for file security labels in the ext3 filesystem. If you are not using a security module that requires using extended attributes for file security labels, say N. config JBD tristate help This is a generic journaling layer for block devices. It is currently used by the ext3 and OCFS2 file systems, but it could also be used to add journal support to other file systems or block devices such as RAID or LVM. If you are using the ext3 or OCFS2 file systems, you need to say Y here. If you are not using ext3 OCFS2 then you will probably want to say N. To compile this device as a module, choose M here: the module will be called jbd. If you are compiling ext3 or OCFS2 into the kernel, you cannot compile this code as a module. config JBD_DEBUG bool "JBD (ext3) debugging support" depends on JBD help If you are using the ext3 journaled file system (or potentially any other file system/device using JBD), this option allows you to enable debugging output while the system is running, in order to help track down any problems you are having. By default the debugging output will be turned off. If you select Y here, then you will be able to turn on debugging with "echo N > /proc/sys/fs/jbd-debug", where N is a number between 1 and 5, the higher the number, the more debugging output is generated. To turn debugging off again, do "echo 0 > /proc/sys/fs/jbd-debug". config FS_MBCACHE# Meta block cache for Extended Attributes (ext2/ext3) tristate depends on EXT2_FS_XATTR || EXT3_FS_XATTR default y if EXT2_FS=y || EXT3_FS=y default m if EXT2_FS=m || EXT3_FS=m config REISERFS_FS tristate "Reiserfs support" help Stores not just filenames but the files themselves in a balanced tree. Uses journaling. Balanced trees are more efficient than traditional file system architectural foundations. In general, ReiserFS is as fast as ext2, but is very efficient with large directories and small files. Additional patches are needed for NFS and quotas, please see <http://www.namesys.com/> for links. It is more easily extended to have features currently found in database and keyword search systems than block allocation based file systems are. The next version will be so extended, and will support plugins consistent with our motto ``It takes more than a license to make source code open.'' Read <http://www.namesys.com/> to learn more about reiserfs. Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com. If you like it, you can pay us to add new features to it that you need, buy a support contract, or pay us to port it to another OS. config REISERFS_CHECK bool "Enable reiserfs debug mode" depends on REISERFS_FS help If you set this to Y, then ReiserFS will perform every check it can possibly imagine of its internal consistency throughout its operation. It will also go substantially slower. More than once we have forgotten that this was on, and then gone despondent over the latest benchmarks.:-) Use of this option allows our team to go all out in checking for consistency when debugging without fear of its effect on end users. If you are on the verge of sending in a bug report, say Y and you might get a useful error message. Almost everyone should say N. config REISERFS_PROC_INFO bool "Stats in /proc/fs/reiserfs" depends on REISERFS_FS help Create under /proc/fs/reiserfs a hierarchy of files, displaying various ReiserFS statistics and internal data at the expense of making your kernel or module slightly larger (+8 KB). This also increases the amount of kernel memory required for each mount. Almost everyone but ReiserFS developers and people fine-tuning reiserfs or tracing problems should say N. config REISERFS_FS_XATTR bool "ReiserFS extended attributes" depends on REISERFS_FS help Extended attributes are name:value pairs associated with inodes by the kernel or by users (see the attr(5) manual page, or visit <http://acl.bestbits.at/> for details). If unsure, say N. config REISERFS_FS_POSIX_ACL bool "ReiserFS POSIX Access Control Lists" depends on REISERFS_FS_XATTR select FS_POSIX_ACL help Posix Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. To learn more about Access Control Lists, visit the Posix ACLs for Linux website <http://acl.bestbits.at/>. If you don't know what Access Control Lists are, say N config REISERFS_FS_SECURITY bool "ReiserFS Security Labels" depends on REISERFS_FS_XATTR help Security labels support alternative access control models implemented by security modules like SELinux. This option enables an extended attribute handler for file security labels in the ReiserFS filesystem. If you are not using a security module that requires using extended attributes for file security labels, say N. config JFS_FS tristate "JFS filesystem support" select NLS help This is a port of IBM's Journaled Filesystem . More information is available in the file <file:Documentation/filesystems/jfs.txt>. If you do not intend to use the JFS filesystem, say N. config JFS_POSIX_ACL bool "JFS POSIX Access Control Lists" depends on JFS_FS select FS_POSIX_ACL help Posix Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. To learn more about Access Control Lists, visit the Posix ACLs for Linux website <http://acl.bestbits.at/>. If you don't know what Access Control Lists are, say N config JFS_SECURITY bool "JFS Security Labels" depends on JFS_FS help Security labels support alternative access control models implemented by security modules like SELinux. This option enables an extended attribute handler for file security labels in the jfs filesystem. If you are not using a security module that requires using extended attributes for file security labels, say N. config JFS_DEBUG bool "JFS debugging" depends on JFS_FS help If you are experiencing any problems with the JFS filesystem, say Y here. This will result in additional debugging messages to be written to the system log. Under normal circumstances, this results in very little overhead. config JFS_STATISTICS bool "JFS statistics" depends on JFS_FS help Enabling this option will cause statistics from the JFS file system to be made available to the user in the /proc/fs/jfs/ directory. config FS_POSIX_ACL# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs)## NOTE: you can implement Posix ACLs without these helpers (XFS does).# Never use this symbol for ifdefs.# bool default n source "fs/xfs/Kconfig" config OCFS2_FS tristate "OCFS2 file system support (EXPERIMENTAL)" depends on NET && EXPERIMENTAL select CONFIGFS_FS select JBD select CRC32 select INET help OCFS2 is a general purpose extent based shared disk cluster file system with many similarities to ext3. It supports 64 bit inode numbers, and has automatically extending metadata groups which may also make it attractive for non-clustered use. You'll want to install the ocfs2-tools package in order to at least get "mount.ocfs2". Project web page: http://oss.oracle.com/projects/ocfs2 Tools web page: http://oss.oracle.com/projects/ocfs2-tools OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/ Note: Features which OCFS2 does not support yet: - extended attributes - shared writeable mmap - loopback is supported, but data written will not be cluster coherent. - quotas - cluster aware flock - Directory change notification (F_NOTIFY) - Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease) - POSIX ACLs - readpages / writepages (not user visible) config MINIX_FS tristate "Minix fs support" help Minix is a simple operating system used in many classes about OS's. The minix file system (method to organize files on a hard disk partition or a floppy disk) was the original file system for Linux, but has been superseded by the second extended file system ext2fs. You don't want to use the minix file system on your hard disk because of certain built-in restrictions, but it is sometimes found on older Linux floppy disks. This option will enlarge your kernel by about 28 KB. If unsure, say N. To compile this file system support as a module, choose M here: the module will be called minix. Note that the file system of your root partition (the one containing the directory /) cannot be compiled as a module. config ROMFS_FS tristate "ROM file system support" ---help--- This is a very small read-only file system mainly intended for initial ram disks of installation disks, but it could be used for other read-only media as well. Read <file:Documentation/filesystems/romfs.txt> for details. To compile this file system support as a module, choose M here: the module will be called romfs. Note that the file system of your root partition (the one containing the directory /) cannot be a module. If you don't know whether you need it, then you don't need it: answer N. config INOTIFY bool "Inotify file change notification support" default y ---help--- Say Y here to enable inotify support. Inotify is a file change notification system and a replacement for dnotify. Inotify fixes numerous shortcomings in dnotify and introduces several new features including multiple file events, one-shot support, and unmount notification. For more information, see Documentation/filesystems/inotify.txt If unsure, say Y. config INOTIFY_USER bool "Inotify support for userspace" depends on INOTIFY default y ---help--- Say Y here to enable inotify support for userspace, including the associated system calls. Inotify allows monitoring of both files and directories via a single open fd. Events are read from the file descriptor, which is also select()- and poll()-able. For more information, see Documentation/filesystems/inotify.txt If unsure, say Y. config QUOTA bool "Quota support" help If you say Y here, you will be able to set per user limits for disk usage (also called disk quotas). Currently, it works for the ext2, ext3, and reiserfs file system. ext3 also supports journalled quotas for which you don't need to run quotacheck(8) after an unclean shutdown. For further details, read the Quota mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>, or the documentation provided with the quota tools. Probably the quota support is only useful for multi user systems. If unsure, say N. config QFMT_V1 tristate "Old quota format support" depends on QUOTA help This quota format was (is) used by kernels earlier than 2.4.22. If you have quota working and you don't want to convert to new quota format say Y here. config QFMT_V2 tristate "Quota format v2 support" depends on QUOTA help This quota format allows using quotas with 32-bit UIDs/GIDs. If you need this functionality say Y here. config QUOTACTL bool depends on XFS_QUOTA || QUOTA default y config DNOTIFY bool "Dnotify support" if EMBEDDED default y help Dnotify is a directory-based per-fd file change notification system that uses signals to communicate events to user-space. There exist superior alternatives, but some applications may still rely on dnotify. Because of this, if unsure, say Y. config AUTOFS_FS tristate "Kernel automounter support" help The automounter is a tool to automatically mount remote file systems on demand. This implementation is partially kernel-based to reduce overhead in the already-mounted case; this is unlike the BSD automounter (amd), which is a pure user space daemon. To use the automounter you need the user-space tools from the autofs package; you can find the location in <file:Documentation/Changes>. You also want to answer Y to "NFS file system support", below. If you want to use the newer version of the automounter with more features, say N here and say Y to "Kernel automounter v4 support", below. To compile this support as a module, choose M here: the module will be called autofs. If you are not a part of a fairly large, distributed network, you probably do not need an automounter, and can say N here. config AUTOFS4_FS tristate "Kernel automounter version 4 support (also supports v3)" help The automounter is a tool to automatically mount remote file systems on demand. This implementation is partially kernel-based to reduce overhead in the already-mounted case; this is unlike the BSD automounter (amd), which is a pure user space daemon. To use the automounter you need the user-space tools from <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also want to answer Y to "NFS file system support", below. To compile this support as a module, choose M here: the module will be called autofs4. You will need to add "alias autofs autofs4" to your modules configuration file.Lines 1–500 of 1879. Load more
# # File system configuration # menu "File systems" config EXT2_FS tristate "Second extended fs support" help Ext2 is a standard Linux file system for hard disks. To compile this file system support as a module, choose M here: the module will be called ext2. Be aware however that the file system of your root partition (the one containing the directory /) cannot be compiled as a module, and so this could be dangerous. If unsure, say Y. config EXT2_FS_XATTR bool "Ext2 extended attributes" depends on EXT2_FS help Extended attributes are name:value pairs associated with inodes by the kernel or by users (see the attr(5) manual page, or visit <http://acl.bestbits.at/> for details). If unsure, say N. config EXT2_FS_POSIX_ACL bool "Ext2 POSIX Access Control Lists" depends on EXT2_FS_XATTR select FS_POSIX_ACL help Posix Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. To learn more about Access Control Lists, visit the Posix ACLs for Linux website <http://acl.bestbits.at/>. If you don't know what Access Control Lists are, say N config EXT2_FS_SECURITY bool "Ext2 Security Labels" depends on EXT2_FS_XATTR help Security labels support alternative access control models implemented by security modules like SELinux. This option enables an extended attribute handler for file security labels in the ext2 filesystem. If you are not using a security module that requires using extended attributes for file security labels, say N. config EXT2_FS_XIP bool "Ext2 execute in place support" depends on EXT2_FS help Execute in place can be used on memory-backed block devices. If you enable this option, you can select to mount block devices which are capable of this feature without using the page cache. If you do not use a block device that is capable of using this, or if unsure, say N. config FS_XIP # execute in place bool depends on EXT2_FS_XIP default y config EXT3_FS tristate "Ext3 journalling file system support" select JBD help This is the journaling version of the Second extended file system (often called ext3), the de facto standard Linux file system (method to organize files on a storage device) for hard disks. The journaling code included in this driver means you do not have to run e2fsck (file system checker) on your file systems after a crash. The journal keeps track of any changes that were being made at the time the system crashed, and can ensure that your file system is consistent without the need for a lengthy check. Other than adding the journal to the file system, the on-disk format of ext3 is identical to ext2. It is possible to freely switch between using the ext3 driver and the ext2 driver, as long as the file system has been cleanly unmounted, or e2fsck is run on the file system. To add a journal on an existing ext2 file system or change the behavior of ext3 file systems, you can use the tune2fs utility ("man tune2fs"). To modify attributes of files and directories on ext3 file systems, use chattr ("man chattr"). You need to be using e2fsprogs version 1.20 or later in order to create ext3 journals (available at <http://sourceforge.net/projects/e2fsprogs/>). To compile this file system support as a module, choose M here: the module will be called ext3. Be aware however that the file system of your root partition (the one containing the directory /) cannot be compiled as a module, and so this may be dangerous. config EXT3_FS_XATTR bool "Ext3 extended attributes" depends on EXT3_FS default y help Extended attributes are name:value pairs associated with inodes by the kernel or by users (see the attr(5) manual page, or visit <http://acl.bestbits.at/> for details). If unsure, say N. You need this for POSIX ACL support on ext3. config EXT3_FS_POSIX_ACL bool "Ext3 POSIX Access Control Lists" depends on EXT3_FS_XATTR select FS_POSIX_ACL help Posix Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. To learn more about Access Control Lists, visit the Posix ACLs for Linux website <http://acl.bestbits.at/>. If you don't know what Access Control Lists are, say N config EXT3_FS_SECURITY bool "Ext3 Security Labels" depends on EXT3_FS_XATTR help Security labels support alternative access control models implemented by security modules like SELinux. This option enables an extended attribute handler for file security labels in the ext3 filesystem. If you are not using a security module that requires using extended attributes for file security labels, say N. config JBD tristate help This is a generic journaling layer for block devices. It is currently used by the ext3 and OCFS2 file systems, but it could also be used to add journal support to other file systems or block devices such as RAID or LVM. If you are using the ext3 or OCFS2 file systems, you need to say Y here. If you are not using ext3 OCFS2 then you will probably want to say N. To compile this device as a module, choose M here: the module will be called jbd. If you are compiling ext3 or OCFS2 into the kernel, you cannot compile this code as a module. config JBD_DEBUG bool "JBD (ext3) debugging support" depends on JBD help If you are using the ext3 journaled file system (or potentially any other file system/device using JBD), this option allows you to enable debugging output while the system is running, in order to help track down any problems you are having. By default the debugging output will be turned off. If you select Y here, then you will be able to turn on debugging with "echo N > /proc/sys/fs/jbd-debug", where N is a number between 1 and 5, the higher the number, the more debugging output is generated. To turn debugging off again, do "echo 0 > /proc/sys/fs/jbd-debug". config FS_MBCACHE # Meta block cache for Extended Attributes (ext2/ext3) tristate depends on EXT2_FS_XATTR || EXT3_FS_XATTR default y if EXT2_FS=y || EXT3_FS=y default m if EXT2_FS=m || EXT3_FS=m config REISERFS_FS tristate "Reiserfs support" help Stores not just filenames but the files themselves in a balanced tree. Uses journaling. Balanced trees are more efficient than traditional file system architectural foundations. In general, ReiserFS is as fast as ext2, but is very efficient with large directories and small files. Additional patches are needed for NFS and quotas, please see <http://www.namesys.com/> for links. It is more easily extended to have features currently found in database and keyword search systems than block allocation based file systems are. The next version will be so extended, and will support plugins consistent with our motto ``It takes more than a license to make source code open.'' Read <http://www.namesys.com/> to learn more about reiserfs. Sponsored by Threshold Networks, Emusic.com, and Bigstorage.com. If you like it, you can pay us to add new features to it that you need, buy a support contract, or pay us to port it to another OS. config REISERFS_CHECK bool "Enable reiserfs debug mode" depends on REISERFS_FS help If you set this to Y, then ReiserFS will perform every check it can possibly imagine of its internal consistency throughout its operation. It will also go substantially slower. More than once we have forgotten that this was on, and then gone despondent over the latest benchmarks.:-) Use of this option allows our team to go all out in checking for consistency when debugging without fear of its effect on end users. If you are on the verge of sending in a bug report, say Y and you might get a useful error message. Almost everyone should say N. config REISERFS_PROC_INFO bool "Stats in /proc/fs/reiserfs" depends on REISERFS_FS help Create under /proc/fs/reiserfs a hierarchy of files, displaying various ReiserFS statistics and internal data at the expense of making your kernel or module slightly larger (+8 KB). This also increases the amount of kernel memory required for each mount. Almost everyone but ReiserFS developers and people fine-tuning reiserfs or tracing problems should say N. config REISERFS_FS_XATTR bool "ReiserFS extended attributes" depends on REISERFS_FS help Extended attributes are name:value pairs associated with inodes by the kernel or by users (see the attr(5) manual page, or visit <http://acl.bestbits.at/> for details). If unsure, say N. config REISERFS_FS_POSIX_ACL bool "ReiserFS POSIX Access Control Lists" depends on REISERFS_FS_XATTR select FS_POSIX_ACL help Posix Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. To learn more about Access Control Lists, visit the Posix ACLs for Linux website <http://acl.bestbits.at/>. If you don't know what Access Control Lists are, say N config REISERFS_FS_SECURITY bool "ReiserFS Security Labels" depends on REISERFS_FS_XATTR help Security labels support alternative access control models implemented by security modules like SELinux. This option enables an extended attribute handler for file security labels in the ReiserFS filesystem. If you are not using a security module that requires using extended attributes for file security labels, say N. config JFS_FS tristate "JFS filesystem support" select NLS help This is a port of IBM's Journaled Filesystem . More information is available in the file <file:Documentation/filesystems/jfs.txt>. If you do not intend to use the JFS filesystem, say N. config JFS_POSIX_ACL bool "JFS POSIX Access Control Lists" depends on JFS_FS select FS_POSIX_ACL help Posix Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme. To learn more about Access Control Lists, visit the Posix ACLs for Linux website <http://acl.bestbits.at/>. If you don't know what Access Control Lists are, say N config JFS_SECURITY bool "JFS Security Labels" depends on JFS_FS help Security labels support alternative access control models implemented by security modules like SELinux. This option enables an extended attribute handler for file security labels in the jfs filesystem. If you are not using a security module that requires using extended attributes for file security labels, say N. config JFS_DEBUG bool "JFS debugging" depends on JFS_FS help If you are experiencing any problems with the JFS filesystem, say Y here. This will result in additional debugging messages to be written to the system log. Under normal circumstances, this results in very little overhead. config JFS_STATISTICS bool "JFS statistics" depends on JFS_FS help Enabling this option will cause statistics from the JFS file system to be made available to the user in the /proc/fs/jfs/ directory. config FS_POSIX_ACL # Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs) # # NOTE: you can implement Posix ACLs without these helpers (XFS does). # Never use this symbol for ifdefs. # bool default n source "fs/xfs/Kconfig" config OCFS2_FS tristate "OCFS2 file system support (EXPERIMENTAL)" depends on NET && EXPERIMENTAL select CONFIGFS_FS select JBD select CRC32 select INET help OCFS2 is a general purpose extent based shared disk cluster file system with many similarities to ext3. It supports 64 bit inode numbers, and has automatically extending metadata groups which may also make it attractive for non-clustered use. You'll want to install the ocfs2-tools package in order to at least get "mount.ocfs2". Project web page: http://oss.oracle.com/projects/ocfs2 Tools web page: http://oss.oracle.com/projects/ocfs2-tools OCFS2 mailing lists: http://oss.oracle.com/projects/ocfs2/mailman/ Note: Features which OCFS2 does not support yet: - extended attributes - shared writeable mmap - loopback is supported, but data written will not be cluster coherent. - quotas - cluster aware flock - Directory change notification (F_NOTIFY) - Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease) - POSIX ACLs - readpages / writepages (not user visible) config MINIX_FS tristate "Minix fs support" help Minix is a simple operating system used in many classes about OS's. The minix file system (method to organize files on a hard disk partition or a floppy disk) was the original file system for Linux, but has been superseded by the second extended file system ext2fs. You don't want to use the minix file system on your hard disk because of certain built-in restrictions, but it is sometimes found on older Linux floppy disks. This option will enlarge your kernel by about 28 KB. If unsure, say N. To compile this file system support as a module, choose M here: the module will be called minix. Note that the file system of your root partition (the one containing the directory /) cannot be compiled as a module. config ROMFS_FS tristate "ROM file system support" ---help--- This is a very small read-only file system mainly intended for initial ram disks of installation disks, but it could be used for other read-only media as well. Read <file:Documentation/filesystems/romfs.txt> for details. To compile this file system support as a module, choose M here: the module will be called romfs. Note that the file system of your root partition (the one containing the directory /) cannot be a module. If you don't know whether you need it, then you don't need it: answer N. config INOTIFY bool "Inotify file change notification support" default y ---help--- Say Y here to enable inotify support. Inotify is a file change notification system and a replacement for dnotify. Inotify fixes numerous shortcomings in dnotify and introduces several new features including multiple file events, one-shot support, and unmount notification. For more information, see Documentation/filesystems/inotify.txt If unsure, say Y. config INOTIFY_USER bool "Inotify support for userspace" depends on INOTIFY default y ---help--- Say Y here to enable inotify support for userspace, including the associated system calls. Inotify allows monitoring of both files and directories via a single open fd. Events are read from the file descriptor, which is also select()- and poll()-able. For more information, see Documentation/filesystems/inotify.txt If unsure, say Y. config QUOTA bool "Quota support" help If you say Y here, you will be able to set per user limits for disk usage (also called disk quotas). Currently, it works for the ext2, ext3, and reiserfs file system. ext3 also supports journalled quotas for which you don't need to run quotacheck(8) after an unclean shutdown. For further details, read the Quota mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>, or the documentation provided with the quota tools. Probably the quota support is only useful for multi user systems. If unsure, say N. config QFMT_V1 tristate "Old quota format support" depends on QUOTA help This quota format was (is) used by kernels earlier than 2.4.22. If you have quota working and you don't want to convert to new quota format say Y here. config QFMT_V2 tristate "Quota format v2 support" depends on QUOTA help This quota format allows using quotas with 32-bit UIDs/GIDs. If you need this functionality say Y here. config QUOTACTL bool depends on XFS_QUOTA || QUOTA default y config DNOTIFY bool "Dnotify support" if EMBEDDED default y help Dnotify is a directory-based per-fd file change notification system that uses signals to communicate events to user-space. There exist superior alternatives, but some applications may still rely on dnotify. Because of this, if unsure, say Y. config AUTOFS_FS tristate "Kernel automounter support" help The automounter is a tool to automatically mount remote file systems on demand. This implementation is partially kernel-based to reduce overhead in the already-mounted case; this is unlike the BSD automounter (amd), which is a pure user space daemon. To use the automounter you need the user-space tools from the autofs package; you can find the location in <file:Documentation/Changes>. You also want to answer Y to "NFS file system support", below. If you want to use the newer version of the automounter with more features, say N here and say Y to "Kernel automounter v4 support", below. To compile this support as a module, choose M here: the module will be called autofs. If you are not a part of a fairly large, distributed network, you probably do not need an automounter, and can say N here. config AUTOFS4_FS tristate "Kernel automounter version 4 support (also supports v3)" help The automounter is a tool to automatically mount remote file systems on demand. This implementation is partially kernel-based to reduce overhead in the already-mounted case; this is unlike the BSD automounter (amd), which is a pure user space daemon. To use the automounter you need the user-space tools from <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also want to answer Y to "NFS file system support", below. To compile this support as a module, choose M here: the module will be called autofs4. You will need to add "alias autofs autofs4" to your modules configuration file.