1 .\" Copyright 1996 Daniel Quinlan (Daniel.Quinlan@linux.org)
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24 .\" 2007-12-14 mtk Added Reiserfs, XFS, JFS.
26 .TH FILESYSTEMS 5 2014-01-15 "Linux" "Linux Programmer's Manual"
29 filesystems \- Linux filesystem types: minix, ext, ext2, ext3, ext4, Reiserfs,
31 umsdos, vfat, ntfs, proc, nfs, iso9660, hpfs, sysv, smb, ncpfs
33 When, as is customary, the
35 filesystem is mounted on
37 you can find in the file
39 which filesystems your kernel currently supports;
43 If you need a currently unsupported filesystem, insert the corresponding
44 module or recompile the kernel.
46 In order to use a filesystem, you have to
51 Below a short description of a few of the available filesystems.
54 is the filesystem used in the Minix operating system, the first to run
56 It has a number of shortcomings, including a 64MB partition size
57 limit, short filenames, and a single timestamp.
58 It remains useful for floppies and RAM disks.
61 is an elaborate extension of the
64 It has been completely superseded by the second version
65 of the extended filesystem
67 and has been removed from the kernel (in 2.1.21).
70 is the high performance disk filesystem used by Linux for fixed disks
71 as well as removable media.
72 The second extended filesystem was designed as an extension of the
76 offers the best performance (in terms of speed and CPU usage) of
77 the filesystems supported under Linux.
80 is a journaling version of the ext2 filesystem.
82 switch back and forth between ext2 and ext3.
85 is a set of upgrades to ext3 including substantial performance and
86 reliability enhancements,
87 plus large increases in volume, file, and directory size limits.
90 is a journaling filesystem, designed by Hans Reiser,
91 that was integrated into Linux in kernel 2.4.1.
94 is a journaling filesystem, developed by SGI,
95 that was integrated into Linux in kernel 2.4.20.
98 is a journaling filesystem, developed by IBM,
99 that was integrated into Linux in kernel 2.4.24.
102 was designed and implemented to be a stable, safe filesystem by
103 extending the Minix filesystem code.
104 It provides the basic most
105 requested features without undue complexity.
108 filesystem is no longer actively developed or maintained.
109 It was removed from the kernel in 2.1.21.
112 is the filesystem used by DOS, Windows, and some OS/2 computers.
114 filenames can be no longer than 8 characters, followed by an
115 optional period and 3 character extension.
118 is an extended DOS filesystem used by Linux.
119 It adds capability for
120 long filenames, UID/GID, POSIX permissions, and special files
121 (devices, named pipes, etc.) under the DOS filesystem, without
122 sacrificing compatibility with DOS.
125 is an extended DOS filesystem used by Microsoft Windows95 and Windows NT.
126 VFAT adds the capability to use long filenames under the MSDOS filesystem.
129 replaces Microsoft Window's FAT filesystems (VFAT, FAT32).
130 It has reliability, performance, and space-utilization enhancements
131 plus features like ACLs, journaling, encryption, and so on.
134 is a pseudo filesystem which is used as an interface to kernel data
135 structures rather than reading and interpreting
137 In particular, its files do not take disk space.
142 is a CD-ROM filesystem type conforming to the ISO 9660 standard.
146 Linux supports High Sierra, the precursor to the ISO 9660 standard for
148 It is automatically recognized within the
150 filesystem support under Linux.
153 Linux also supports the System Use Sharing Protocol records specified
154 by the Rock Ridge Interchange Protocol.
155 They are used to further describe the files in the
157 filesystem to a UNIX host, and provide information such as long
158 filenames, UID/GID, POSIX permissions, and devices.
159 It is automatically recognized within the
161 filesystem support under Linux.
165 is the High Performance Filesystem, used in OS/2.
167 read-only under Linux due to the lack of available documentation.
170 is an implementation of the SystemV/Coherent filesystem for Linux.
171 It implements all of Xenix FS, SystemV/386 FS, and Coherent FS.
174 is the network filesystem used to access disks located on remote computers.
177 is a network filesystem that supports the SMB protocol, used by
178 Windows for Workgroups, Windows NT, and Lan Manager.
182 fs, you need a special mount program, which can be found in the ksmbfs
184 .UR ftp://sunsite.unc.edu\:/pub\:/Linux\:/system\:/Filesystems\:/smbfs
188 is a network filesystem that supports the NCP protocol, used by
193 you need special programs, which can be found at
194 .UR ftp://linux01.gwdg.de\:/pub\:/ncpfs