member of the group of the special file.
.SS Bind mounts
-Since Linux 2.4.0 it is possible to remount part of the
-file hierarchy somewhere else. The call is:
+Remount part of the file hierarchy somewhere else. The call is:
.RS
.br
.RE
.SS The move operation
-Since Linux 2.5.1 it is possible to atomically move a
+Move a
.B mounted tree
-to another place. The call is:
+to another place (atomically). The call is:
.RS
.br
.TP
.B noexec
Do not permit direct execution of any binaries on the mounted filesystem.
-(Until recently it was possible to run binaries anyway using a command like
-/lib/ld*.so /mnt/binary. This trick fails since Linux 2.4.25 / 2.6.0.)
.TP
.B group
Allow an ordinary user to mount the filesystem if one
.SS "Mount options for ext2"
The `ext2' filesystem is the standard Linux filesystem.
-Since Linux 2.5.46, for most mount options the default
+For most mount options the default
is determined by the filesystem superblock. Set them with
.BR tune2fs (8).
.TP
Instead of block 1, use block
.I n
as superblock. This could be useful when the filesystem has been damaged.
-(Earlier, copies of the superblock would be made every 8192 blocks: in
-block 1, 8193, 16385, \&...\& (and one got thousands of copies on
-a big filesystem). Since version 1.08,
-.B mke2fs
-has a \-s (sparse superblock) option to reduce the number of backup
-superblocks, and since version 1.15 this is the default. Note
-that this may mean that ext2 filesystems created by a recent
-.B mke2fs
-cannot be mounted r/w under Linux 2.0.*.)
-The block number here uses 1\ k units. Thus, if you want to use logical
-block 32768 on a filesystem with 4\ k blocks, use "sb=131072".
+See
+.B dumpe2fs /dev/foo | grep superblock
+to list alternatively usable superblocks.
.TP
.BR user_xattr | nouser_xattr
Support "user." extended attributes (or not).
Set the umask applied to directories only.
The default is the umask of the current process.
The value is given in octal.
-.\" Present since Linux 2.5.43.
.TP
.BI fmask= value
Set the umask applied to regular files only.
The default is the umask of the current process.
The value is given in octal.
-.\" Present since Linux 2.5.43.
.TP
.BI allow_utime= value
This option controls the permission check of mtime/atime.
and VFAT filesystems. By default, codepage 437 is used.
.TP
.BI conv= mode
-The
-.I fat
-filesystem can perform CRLF<-->NL conversion (MS-DOS text format to UNIX text
-format) in the kernel. The following conversion \fImode\fRs are available:
-.RS
-.TP
-.BR b [ inary ]
-No translation is performed. This is the default.
-.TP
-.BR t [ ext ]
-CRLF<-->NL translation is performed on all files.
-.TP
-.BR a [ uto ]
-CRLF<-->NL translation is performed on all files that don't have a
-"well-known binary" extension. The list of known extensions can be found at
-the beginning of
-.I fs/fat/misc.c
-(as of 2.0, the list is: exe, com, bin, app, sys, drv, ovl, ovr, obj,
-lib, dll, pif, arc, zip, lha, lzh, zoo, tar, z, arj, tz, taz, tzp, tpz,
-gz, tgz, deb, gif, bmp, tif, gl, jpg, pcx, tfm, vf, gf, pk, pxl, dvi).
-.PP
-Programs that do computed lseeks won't like in-kernel text conversion.
-Several people have had their data ruined by this translation. Beware!
-
-For filesystems mounted in binary mode, a conversion tool
-(fromdos/todos) is available. This option is obsolete.
-.RE
+This option is obsolete and may fail or being ignored.
.TP
.BI cvf_format= module
Forces the driver to use the CVF (Compressed Volume File) module
(Default:
.BR case=lower .)
.TP
-.BR conv= { binary | text | auto }
-For
-.BR conv=text ,
-delete some random CRs (in particular, all followed by NL)
-when reading a file.
-For
-.BR conv=auto ,
-choose more or less at random between
-.BR conv=binary " and " conv=text .
-For
-.BR conv=binary ,
-just read what is in the file. This is the default.
+.BI conv= mode
+This option is obsolete and may fail or being ignored.
.TP
.B nocheck
Do not abort mounting when certain consistency checks fail.
.BI mode= value
For non-Rock Ridge volumes, give all files the indicated mode.
(Default: read and execute permission for everybody.)
-Since Linux 2.1.37 one no longer needs to specify the mode in
-decimal. (Octal is indicated by a leading 0.)
+Octal mode values require a leading 0.
.TP
.B unhide
Also show hidden and associated files.
(Default:
.BR block=1024 .)
.TP
-.BR conv= { a [ uto ]| b [ inary ]| m [ text ]| t [ ext ]}
-(Default:
-.BR conv=binary .)
-Since Linux 1.3.54 this option has no effect anymore.
-(And non-binary settings used to be very dangerous,
-possibly leading to silent data corruption.)
+.BI conv= mode
+This option is obsolete and may fail or being ignored.
.TP
.B cruft
If the high byte of the file length contains other garbage,
This implies that a file cannot be larger than 16\ MB.
.TP
.BI session= x
-Select number of session on multisession CD. (Since 2.3.4.)
+Select number of session on multisession CD.
.TP
.BI sbsector= xxx
-Session begins from sector xxx. (Since 2.3.4.)
+Session begins from sector xxx.
.LP
The following options are the same as for vfat and specifying them only makes
sense when using discs encoded using Microsoft's Joliet extensions.
Character set to use when returning file names.
Unlike VFAT, NTFS suppresses names that contain
nonconvertible characters. Deprecated.
-.\" since 2.5.11
.TP
.BI nls= name
New name for the option earlier called
.IR iocharset .
-.\" since 2.5.11
.TP
.B utf8
Use UTF-8 for converting file names.
.SS "Mount options for ramfs"
Ramfs is a memory based filesystem. Mount it and you have it. Unmount it
-and it is gone. Present since Linux 2.3.99pre4.
+and it is gone.
There are no mount options.
.SS "Mount options for reiserfs"