201 lines
5.9 KiB
Groff
201 lines
5.9 KiB
Groff
.\" $NetBSD: mount_ntfs.8,v 1.22 2017/04/15 10:30:55 abhinav Exp $
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.\"
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.\" Copyright (c) 1993,1994 Christopher G. Demetriou
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.\" Copyright (c) 1999 Semen Ustimenko
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgment:
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.\" This product includes software developed by Christopher G. Demetriou.
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.\" 3. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" Id: mount_ntfs.8,v 1.3 1999/05/04 11:34:33 jkoshy Exp
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.\"
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.Dd September 9, 2015
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.Dt MOUNT_NTFS 8
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.Os
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.Sh NAME
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.Nm mount_ntfs
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.Nd mount an NTFS file system
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.Sh SYNOPSIS
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.Nm mount_ntfs
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.Op Fl a
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.Op Fl i
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.Op Fl u Ar uid
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.Op Fl g Ar gid
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.Op Fl m Ar mask
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.Pa special
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.Pa node
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.Sh DESCRIPTION
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The
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.Nm
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command attaches the NTFS filesystem residing on the device
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.Pa special
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to the global filesystem namespace at the location
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indicated by
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.Pa node .
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Both
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.Ar special
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and
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.Ar node
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are converted to absolute paths before use.
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This command is normally executed by
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.Xr mount 8
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at boot time, but can be used by any user to mount an
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NTFS file system on any directory that they own (provided,
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of course, that they have appropriate access to the device that
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contains the file system).
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.Pp
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The supported NTFS versions include both NTFS4, as used by Microsoft
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Windows NT 4.0, and NTFS5, as used by Microsoft Windows 2000 and XP.
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl a
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Force behaviour to return MS-DOS 8.3 names also on
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.Xr readdir 3 .
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.It Fl i
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Make name lookup case insensitive for all names except POSIX names.
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.It Fl u Ar uid
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Set the owner of the files in the file system to
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.Ar uid .
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The default owner is the owner of the directory
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on which the file system is being mounted.
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.It Fl g Ar gid
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Set the group of the files in the file system to
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.Ar gid .
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The default group is the group of the directory
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on which the file system is being mounted.
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.It Fl m Ar mask
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Specify the maximum file permissions for files
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in the file system.
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.El
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.Sh FEATURES
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.Ss NTFS file attributes
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NTFS file attributes can be accessed in the following way:
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.Bd -literal -offset indent
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foo[[:ATTRTYPE]:ATTRNAME]
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.Ed
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.Pp
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.Sq ATTRTYPE
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is one of identifier listed in $AttrDef file of volume.
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Default is $DATA.
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.Sq ATTRNAME
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is an attribute name.
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Default is none.
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.Pp
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.Sy Examples :
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.Pp
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To get volume name (in Unicode):
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.Bd -literal -offset indent
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# cat /mnt/\e$Volume:\e$VOLUME_NAME
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.Ed
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.Pp
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To read directory raw data:
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.Bd -literal -offset indent
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# cat /mnt/foodir:\e$INDEX_ROOT:\e$I30
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.Ed
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.Ss Limited support for writing
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There is limited writing ability for files.
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Limitations:
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.Bl -bullet -compact
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.It
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file must be non-resident
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.It
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file must
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.Em not
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contain any holes (uninitialized areas)
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.It
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file can't be compressed
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.El
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.Pp
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Note that it's not currently possible to create or remove files
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on NTFS filesystems.
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.Pp
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.Sy Warning :
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do not mount NTFS filesystems read-write.
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The write support is not very useful and is not tested well.
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It's not safe to write to any file on NTFS; you might damage the filesystem.
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Unless you want to debug NTFS filesystem code, mount the NTFS filesystem
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read-only.
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.Sh SEE ALSO
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.Xr mount 2 ,
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.Xr unmount 2 ,
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.Xr fstab 5 ,
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.Xr disklabel 8 ,
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.Xr mbrlabel 8 ,
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.Xr mount 8
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.Sh HISTORY
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Support for NTFS first appeared in
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.Fx 3.0 .
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It was ported to
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.Nx
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and first appeared in
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.Nx 1.5 .
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.Sh AUTHORS
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NTFS kernel implementation,
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.Nm
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and this manual were originally written by
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.An Semen Ustimenko Aq Mt semenu@FreeBSD.org .
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.Pp
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The
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.Nx
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port was done by
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.An Christos Zoulas
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.Aq christos@NetBSD.org
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and
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.An Jaromir Dolecek
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.Aq jdolecek@NetBSD.org .
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.Sh BUGS
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The write support should be enhanced to actually be able to change
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file size, and to create and remove files and directories.
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It's not very useful right now.
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.Pp
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If the attempt to mount NTFS gives you an error like this:
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.Bd -literal
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# mount -t ntfs /dev/wd0k /mnt
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mount_ntfs: /dev/wd0k on /mnt: Invalid argument
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.Ed
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.Pp
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make sure that appropriate partition has correct entry in the
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disk label, particularly that the partition offset is correct.
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.Pp
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Recently many cards (in particular SDXC ones) are formatted using
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exFAT.
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For those cards, disklabel reports NTFS as the partition type.
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There is currently no support for mounting exFAT drives.
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.Pp
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If the NTFS partition is the first partition on the disk, the
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offset should be '63' or '2048' on i386 (see
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.Xr disklabel 8 ) .
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exFAT partitions typically report an offset of '32768'.
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.Xr mbrlabel 8
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could help you to set up the disk label correctly.
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.Pp
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If the NTFS partition is marked as
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.Ql dynamic
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under Microsoft Windows XP,
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it won't be possible to access it under
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.Nx
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anymore.
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