.TH FILESYSTEMS 5 2012-08-05 "Linux" "Linux Programmer's Manual"
.nh
.SH NAME
-filesystems \- Linux filesystem types: minix, ext, ext2, ext3, ext4, Reiserfs,
+filesystems \- Linux file-system types: minix, ext, ext2, ext3, ext4, Reiserfs,
XFS, JFS, xia, msdos,
umsdos, vfat, ntfs, proc, nfs, iso9660, hpfs, sysv, smb, ncpfs
.SH DESCRIPTION
When, as is customary, the
.B proc
-filesystem is mounted on
+file system is mounted on
.IR /proc ,
you can find in the file
.I /proc/filesystems
-which filesystems your kernel currently supports.
+which file systems your kernel currently supports.
If you need a currently unsupported one, insert the corresponding
module or recompile the kernel.
-In order to use a filesystem, you have to
+In order to use a file system, you have to
.I mount
it; see
.BR mount (8).
-Below a short description of a few of the available filesystems.
+Below a short description of a few of the available file systems.
.TP 10
.B "minix"
-is the filesystem used in the Minix operating system, the first to run
+is the file system used in the Minix operating system, the first to run
under Linux.
It has a number of shortcomings: a 64MB partition size
limit, short filenames, a single timestamp, etc.
.B ext
is an elaborate extension of the
.B minix
-filesystem.
+file system.
It has been completely superseded by the second version
-of the extended filesystem
+of the extended file system
.RB ( ext2 )
and has been removed from the kernel (in 2.1.21).
.TP
.B ext2
-is the high performance disk filesystem used by Linux for fixed disks
+is the high performance disk file system used by Linux for fixed disks
as well as removable media.
-The second extended filesystem was designed as an extension of the
-extended filesystem
+The second extended file system was designed as an extension of the
+extended file system
.RB ( ext ).
.B ext2
offers the best performance (in terms of speed and CPU usage) of
-the filesystems supported under Linux.
+the file systems supported under Linux.
.TP
.B ext3
-is a journaling version of the ext2 filesystem.
+is a journaling version of the ext2 file system.
It is easy to
switch back and forth between ext2 and ext3.
.TP
plus large increases in volume, file, and directory size limits.
.TP
.B Reiserfs
-is a journaling filesystem, designed by Hans Reiser,
+is a journaling file system, designed by Hans Reiser,
that was integrated into Linux in kernel 2.4.1.
.TP
.B XFS
-is a journaling filesystem, developed by SGI,
+is a journaling file system, developed by SGI,
that was integrated into Linux in kernel 2.4.20.
.TP
.B JFS
-is a journaling filesystem, developed by IBM,
+is a journaling file system, developed by IBM,
that was integrated into Linux in kernel 2.4.24.
.TP
.B xiafs
-was designed and implemented to be a stable, safe filesystem by
-extending the Minix filesystem code.
+was designed and implemented to be a stable, safe file system by
+extending the Minix file system code.
It provides the basic most
requested features without undue complexity.
The
.B xia
-filesystem is no longer actively developed or maintained.
+file system is no longer actively developed or maintained.
It was removed from the kernel in 2.1.21.
.TP
.B msdos
-is the filesystem used by DOS, Windows, and some OS/2 computers.
+is the file system used by DOS, Windows, and some OS/2 computers.
.B msdos
filenames can be no longer than 8 characters, followed by an
optional period and 3 character extension.
.TP
.B umsdos
-is an extended DOS filesystem used by Linux.
+is an extended DOS file system used by Linux.
It adds capability for
long filenames, UID/GID, POSIX permissions, and special files
-(devices, named pipes, etc.) under the DOS filesystem, without
+(devices, named pipes, etc.) under the DOS file system, without
sacrificing compatibility with DOS.
.TP
.B vfat
-is an extended DOS filesystem used by Microsoft Windows95 and Windows NT.
-VFAT adds the capability to use long filenames under the MSDOS filesystem.
+is an extended DOS file system used by Microsoft Windows95 and Windows NT.
+VFAT adds the capability to use long filenames under the MSDOS file system.
.TP
.B ntfs
-replaces Microsoft Window's FAT filesystems (VFAT, FAT32).
+replaces Microsoft Window's FAT file systems (VFAT, FAT32).
It has reliability, performance, and space-utilization enhancements
plus features like ACLs, journaling, encryption, and so on.
.TP
.B proc
-is a pseudo filesystem which is used as an interface to kernel data
+is a pseudo file system which is used as an interface to kernel data
structures rather than reading and interpreting
.IR /dev/kmem .
In particular, its files do not take disk space.
.BR proc (5).
.TP
.B iso9660
-is a CD-ROM filesystem type conforming to the ISO 9660 standard.
+is a CD-ROM file system type conforming to the ISO 9660 standard.
.RS
.TP
.B "High Sierra"
Linux supports High Sierra, the precursor to the ISO 9660 standard for
-CD-ROM filesystems.
+CD-ROM file systems.
It is automatically recognized within the
.B iso9660
-filesystem support under Linux.
+file-system support under Linux.
.TP
.B "Rock Ridge"
Linux also supports the System Use Sharing Protocol records specified
by the Rock Ridge Interchange Protocol.
They are used to further describe the files in the
.B iso9660
-filesystem to a UNIX host, and provide information such as long
+file system to a UNIX host, and provide information such as long
filenames, UID/GID, POSIX permissions, and devices.
It is automatically recognized within the
.B iso9660
-filesystem support under Linux.
+file-system support under Linux.
.RE
.TP
.B hpfs
is the High Performance Filesystem, used in OS/2.
-This filesystem is
+This file system is
read-only under Linux due to the lack of available documentation.
.TP
.B sysv
-is an implementation of the SystemV/Coherent filesystem for Linux.
+is an implementation of the SystemV/Coherent file system for Linux.
It implements all of Xenix FS, SystemV/386 FS, and Coherent FS.
.TP
.B nfs
-is the network filesystem used to access disks located on remote computers.
+is the network file system used to access disks located on remote computers.
.TP
.B smb
-is a network filesystem that supports the SMB protocol, used by
+is a network file system that supports the SMB protocol, used by
Windows for Workgroups, Windows NT, and Lan Manager.
.sp
To use
.UE .
.TP
.B ncpfs
-is a network filesystem that supports the NCP protocol, used by
+is a network file system that supports the NCP protocol, used by
Novell NetWare.
.sp
To use
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