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Linux 2.6 - man page for fs (linux section 5)

FILESYSTEMS(5)			    Linux Programmer's Manual			   FILESYSTEMS(5)

NAME
       filesystems  -  Linux  filesystem types: minix, ext, ext2, ext3, ext4, Reiserfs, XFS, JFS,
       xia, msdos, umsdos, vfat, ntfs, proc, nfs, iso9660, hpfs, sysv, smb, ncpfs

DESCRIPTION
       When, as is customary, the proc filesystem is mounted on /proc, you can find in	the  file
       /proc/filesystems  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 mount it; see mount(8).

       Below a short description of a few of the available filesystems.

       minix	 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 timestamp, etc.  It remains  useful  for  floppies  and  RAM
		 disks.

       ext	 is  an  elaborate  extension  of  the	minix filesystem.  It has been completely
		 superseded by the second version of the extended filesystem (ext2) and has  been
		 removed from the kernel (in 2.1.21).

       ext2	 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	filesystem  (ext).  ext2 offers the best performance (in terms of
		 speed and CPU usage) of the filesystems supported under Linux.

       ext3	 is a journaling version of the ext2 filesystem.  It is easy to switch	back  and
		 forth between ext2 and ext3.

       ext4	 is  a	set of upgrades to ext3 including substantial performance and reliability
		 enhancements, plus large increases in volume, file, and directory size limits.

       Reiserfs  is a journaling filesystem, designed by Hans Reiser, that  was  integrated  into
		 Linux in kernel 2.4.1.

       XFS	 is  a journaling filesystem, developed by SGI, that was integrated into Linux in
		 kernel 2.4.20.

       JFS	 is a journaling filesystem, developed by IBM, that was integrated into Linux  in
		 kernel 2.4.24.

       xiafs	 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.   The  xia	filesystem  is	no  longer  actively developed or
		 maintained.  It was removed from the kernel in 2.1.21.

       msdos	 is the filesystem  used  by  DOS,  Windows,  and  some  OS/2  computers.   msdos
		 filenames can be no longer than 8 characters, followed by an optional period and
		 3 character extension.

       umsdos	 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.

       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.

       ntfs	 replaces  Microsoft Window's FAT filesystems (VFAT, FAT32).  It has reliability,
		 performance,  and  space-utilization  enhancements  plus  features  like   ACLs,
		 journaling, encryption, and so on.

       proc	 is  a	pseudo filesystem which is used as an interface to kernel data structures
		 rather than reading and interpreting /dev/kmem.  In particular, its files do not
		 take disk space.  See proc(5).

       iso9660	 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  iso9660
			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  iso9660  filesystem  to  a  UNIX  host,  and provide
			information such as  long  filenames,  UID/GID,  POSIX	permissions,  and
			devices.   It  is  automatically recognized within the iso9660 filesystem
			support under Linux.

       hpfs	 is the High Performance Filesystem, used in OS/2.  This filesystem is	read-only
		 under Linux due to the lack of available documentation.

       sysv	 is   an  implementation  of  the  SystemV/Coherent  filesystem  for  Linux.   It
		 implements all of Xenix FS, SystemV/386 FS, and Coherent FS.

       nfs	 is the network filesystem used to access disks located on remote computers.

       smb	 is a network filesystem that supports the SMB	protocol,  used  by  Windows  for
		 Workgroups, Windows NT, and Lan Manager.

		 To  use  smb  fs,  you  need  a special mount program, which can be found in the
		 ksmbfs  package,  found  at  <ftp://sunsite.unc.edu/pub/Linux/system/Filesystems
		 /smbfs>.

       ncpfs	 is a network filesystem that supports the NCP protocol, used by Novell NetWare.

		 To   use   ncpfs,   you   need   special   programs,	which  can  be	found  at
		 <ftp://linux01.gwdg.de/pub/ncpfs>.

SEE ALSO
       proc(5), fsck(8), mkfs(8), mount(8)

COLOPHON
       This page is part of release 3.55 of the Linux man-pages project.  A  description  of  the
       project,     and    information	  about    reporting	bugs,	 can	be    found    at
       http://www.kernel.org/doc/man-pages/.

Linux					    2012-08-05				   FILESYSTEMS(5)


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