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

       filesystems  -  Linux  filesystem  types:  minix, ext, ext2, ext3, xia,
       msdos, umsdos, vfat, proc, nfs, iso9660, hpfs, sysv, smb, ncpfs

       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) for
       the mount command, and for the available mount options.

       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 time stamp, 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	      completely superseded by the  second  version  of	 the  extended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

       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  file
	      system  (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. ext3 offers the
	      most  complete  set  of  journaling  options   available	 among
	      journaling filesystems.

       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.

       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).

	      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

	      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

       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

       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

       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

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

				  2001-12-07			FILESYSTEMS(5)
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