Provided by: manpages_5.02-1_all bug

NAME

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

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; see proc(5) for more
       details.  There is also a legacy sysfs(2) system call (whose availability is controlled by
       the  CONFIG_SYSFS_SYSCALL kernel build configuration option since Linux 3.15) that enables
       enumeration of the currently available filesystem types regardless of  /proc  availability
       and/or sanity.

       If  you need a currently unsupported filesystem, insert the corresponding kernel module or
       recompile the kernel.

       In order to use a filesystem, you have to mount it; see mount(2) and mount(8).

       iThe following list  provides  a  short  description  of  the  available  or  historically
       available   filesystems  in  the  Linux  kernel.   See  the  kernel  documentation  for  a
       comprehensive description of all options and limitations.

       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                 superseded  by the second version of the extended filesystem (ext2) and has been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).  See ext2(5).

       ext3      is a journaling version of the ext2 filesystem.  It is easy to switch  back  and
                 forth between ext2 and ext3.  See ext3(5).

       ext4      is  a  set of upgrades to ext3 including substantial performance and reliability
                 enhancements, plus large increases in volume, file, and directory  size  limits.
                 See ext4(5).

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

       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.

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

       minix     is the filesystem used in the Minix operating system, the  first  to  run  under
                 Linux.  It has a number of shortcomings, including a 64 MB partition size limit,
                 short filenames, and a single timestamp.  It remains useful for floppies and RAM
                 disks.

       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.

       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⟩.

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

       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).

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

       smb       is  a  network  filesystem  that  supports the SMB protocol, used by Windows for
                 Workgroups, Windows  NT,  and  Lan  Manager.   See  ⟨https://www.samba.org/samba
                 /smbfs/⟩.

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

       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.

       tmpfs     is a filesystem whose contents reside in virtual memory.   Since  the  files  on
                 such  filesystems  typically  reside in RAM, file access is extremely fast.  See
                 tmpfs(5).

       vfat      is an extended FAT filesystem used by Microsoft Windows95 and Windows NT.   vfat
                 adds the capability to use long filenames under the MSDOS filesystem.

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

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

SEE ALSO

       fuse(4), btrfs(5), ext2(5), ext3(5), ext4(5), nfs(5), proc(5), tmpfs(5), fsck(8), mkfs(8),
       mount(8)

COLOPHON

       This page is part of release 5.02 of the Linux man-pages project.  A  description  of  the
       project,  information  about  reporting  bugs, and the latest version of this page, can be
       found at https://www.kernel.org/doc/man-pages/.