Section: Linux Programmer's Manual (5)
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filesystems - Linux filesystem types: minix, ext, ext2, ext3, xia, msdos,
umsdos, vfat, proc, nfs, iso9660, hpfs, sysv, smb, ncpfs
When, as is customary, the
filesystem is mounted on
you can find in the file
which filesystems 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
for the mount command, and for the available mount options.
Below a short description of a few of the available filesystems.
is the filesystem 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 time stamp, etc.
It remains useful for floppies and RAM disks.
is an elaborate extension of the
filesystem. It has been completely superseded by the second version
of the extended filesystem
and has been removed from the kernel (in 2.1.21).
is the high performance disk filesystem used by Linux for fixed disks
as well as removable media.
The second extended filesystem was designed as an extension of the
extended file system
offers the best performance (in terms of speed and CPU usage) of
the filesystems supported under Linux.
is a journaling version of the ext2 filesystem. It is easy to
switch back and forth between ext2 and ext3. ext3 offers the most
complete set of journaling options available among journaling
was designed and implemented to be a stable, safe filesystem by
extending the Minix filesystem code. It provides the basic most
requested features without undue complexity.
filesystem is no longer actively developed or maintained.
It was removed from the kernel in 2.1.21.
is the filesystem used by DOS, Windows, and some OS/2 computers.
filenames can be no longer than 8 characters, followed by an
optional period and 3 character extension.
is an extended DOS filesystem 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
sacrificing compatibility with DOS.
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 a pseudo-filesystem which is used as an interface to kernel data
structures rather than reading and interpreting
In particular, its files do not take disk space. See
is a CD-ROM filesystem type conforming to the ISO 9660 standard.
- High Sierra
Linux supports High Sierra, the precursor to the ISO 9660 standard for
CD-ROM filesystems. It is automatically recognized within the
filesystem support under Linux.
- 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
filesystem to a UNIX host, and provide information such as long
filenames, UID/GID, POSIX permissions, and devices. It is
automatically recognized within the
filesystem support under Linux.
is the High Performance Filesystem, used in OS/2. This filesystem is
read-only under Linux due to the lack of available documentation.
is an implementation of the SystemV/Coherent filesystem for Linux. It
implements all of Xenix FS, SystemV/386 FS, and Coherent FS.
is the network filesystem used to access disks located on remote computers.
is a network filesystem that supports the SMB protocol, used by
Windows for Workgroups, Windows NT, and Lan Manager.
fs, you need a special mount program, which can be found in the ksmbfs
package, found at
is a network filesystem that supports the NCP protocol, used by
you need special programs, which can be found at
- SEE ALSO
linux.jgfs.net manual pages