ntfs-3g.8.in

添加linux下对NTFS格式文件系统访问支持的源代码ntfs-3g

.\" Copyright (c) 2005-2006 Yura Pakhuchiy.
.\" Copyright (c) 2005 Richard Russon.
.\" Copyright (c) 2006-2007 Szabolcs Szakacsits.
.\" This file may be copied under the terms of the GNU Public License.
.\"
.TH NTFS-3G 8 "March 2007" "ntfs-3g @VERSION@"
.SH NAME
ntfs-3g \- Third Generation Read/Write NTFS Driver
.SH SYNOPSIS
.B ntfs-3g
.I device mount_point
[\fB\-o options\fR]
.br
.B mount \-t ntfs-3g
.I device mount_point
[\fB\-o options\fR]
.SH DESCRIPTION
\fBntfs-3g\fR is an NTFS driver, which can
create, remove, rename, move files, directories, hard links, and
streams; it can read and write files, including 
streams and sparse files; it can handle special files like 
symbolic links, devices, and FIFOs; moreover it can also read
compressed files.
.SS Access handling, security
By default, files and directories are owned by the effective 
user and group of the mounting process and everybody has
full read, write, execution and directory browsing permissions.
If you want to use permissions handling then use the
.B uid
and/or the
.B gid 
options together with the 
.B umask,
or
.B fmask
and
.B dmask
options.
.PP
Windows users have full access to the files created by 
.B ntfs-3g.
.PP
If 
.B ntfs-3g 
is set setuid-root then non-root users will 
be also able to mount block devices or via /etc/fstab if the 'user'
or 'users' 
.BR mount (8)
option is specified. The
.B ntfs-3g 
process drops the 
root privilege after successful mount and runs unprivileged 
afterwards.
.SS Alternate Data Streams (ADS)
All data on NTFS is stored in streams.  Every file has exactly one unnamed
data stream and can have many named data streams.  The size of a file is the
size of its unnamed data stream.  By default, \fBntfs-3g\fR will only read
the unnamed data stream.
.PP
By using the options "streams_interface=windows", you will be able to read
any named data streams, simply by specifying the stream's name after a colon.
For example:
.RS
.sp
cat some.mp3:artist
.sp
.RE
Named data streams act like normals files, so you can read from them, write to
them and even delete them (using rm).  You can list all the named data streams
a file has by getting the "ntfs.streams.list" extended attribute.
.SH OPTIONS
Below is a summary of the options that \fBntfs-3g\fR accepts.
.TP
\fBuid=\fP\fIvalue\fP and \fBgid=\fP\fIvalue\fP
Set the owner and the group of files and directories. The values are numerical.
The defaults are the uid and gid of the current process.
.TP
.BI umask= value
Set the  bitmask of the file and directory permissions that are not
present. The value is given in octal. The default value is 0 which
means full access to everybody.
.TP
.BI fmask= value
Set the  bitmask of the file permissions that are not present. 
The value is given in octal. The default value is 0 which
means full access to everybody.
.TP
.BI dmask= value
Set the  bitmask of the directory permissions that are not
present. The value is given in octal. The default value is 0 which
means full access to everybody.
.TP
.B ro
Mount filesystem read\-only.
.TP
.BI locale= value
You can set locale with this option which is often required to make 
visible files with national charaters. It's useful if the locale 
environment variables are not set before partitions had been mounted 
from /etc/fstab.
.TP
.B force
Force mount even if the volume is scheduled for consistency check.
Use this option with caution and preferably with the
.B ro
option.
.TP
.B show_sys_files
Show the system files in directory listings. 
Otherwise the default behaviour is to hide the system files.
Please note that even when this option is specified, "$MFT"
may not be visible due to a glibc bug.
Furthermore, irrespectively of show_sys_files, all
files are accessible by name, for example you can always do
"ls \-l '$UpCase'".
.TP
.B allow_other
This option overrides the security measure restricting file access
to the user mounting the filesystem.  This option is only
allowed to root, but this restriction can be overridden by 
the 'user_allow_other' option in the /etc/fuse.conf file.
.TP
.B large_read
Issue large read requests.  This can improve performance for some
filesystems, but can also degrade performance.  This option is mostly
useful on 2.4.X kernels, as on 2.6 kernels requests size is
automatically determined for optimum performance.
.TP
.BI max_read= value
With this option the maximum size of read operations can be set.
The default is infinite.  Note that the size of read requests is
limited anyway to 32 pages (which is 128kbyte on i386).
.TP
.B silent
Do nothing on chmod and chown operations, but do not return error. 
This option is on by default.
.TP
.B no_def_opts
By default ntfs-3g acts as "silent,allow_other" was passed to it,
this option cancel this behaviour.
.TP
.BI streams_interface= value
This option controls how the user can access Alternate Data Streams (ADS)
or in other words, named data streams. It can be set
to, one of \fBnone\fR, \fBwindows\fR or \fBxattr\fR. If the option is set to
\fBnone\fR, the user will have no access to the named data streams.  If it's set
to \fBwindows\fR, then the user can access them just like in Windows (eg. cat
file:stream). If it's set to \fBxattr\fR, then the named data streams are
mapped to xattrs and user can manipulate them using \fB{get,set}fattr\fR
utilities. The default is \fBnone\fR.
.TP
.B debug
Makes ntfs-3g to not detach from terminal and print a lot of debug output from
libntfs-3g and FUSE.
.TP
.B no_detach
Same as above but with less debug output.
.SH EXAMPLES
Mount /dev/hda1 to /mnt/windows:
.RS
.sp
.B ntfs-3g /dev/hda1 /mnt/windows
.sp
.RE
or
.RS
.sp
.B mount -t ntfs-3g /dev/hda1 /mnt/windows
.sp
.RE
Read\-only mount /dev/hda5 to /home/user/mnt and make user with uid 1000 
to be the owner of all files:
.RS
.sp
.B ntfs-3g /dev/hda5 /home/user/mnt \-o ro,uid=1000
.sp
.RE
/etc/fstab entry for the above:
.RS
.sp
.B /dev/hda5 /home/user/mnt ntfs\-3g ro,uid=1000 0 0
.sp
.RE
Unmount /mnt/windows:
.RS
.sp
.B umount /mnt/windows
.sp
.RE
You can also unmount /mnt/windows with fusermount:
.RS
.sp
.B fusermount \-u /mnt/windows
.sp
.RE
.SH KNOWN ISSUES
Please see 
.RS
.sp
http://www.ntfs-3g.org/support.html
.sp
.RE
for common questions and known issues.
If you would find a new one in the latest release of
the software then please send an email describing it
in detail. You can contact the 
development team on the ntfs\-3g\[e-mail]
address.
.SH AUTHORS
.B ntfs-3g 
was based on and a major improvement to ntfsmount and libntfs which were
written by Yura Pakhuchiy and the Linux-NTFS team. The improvements were 
made, the ntfs-3g project was initiated and currently led by long time 
Linux-NTFS team developer Szabolcs Szakacsits ([e-mail]) to revive
the stalled open source development and project management.

.SH THANKS
Several people made heroic efforts, often over five or more
years which resulted the ntfs-3g driver. Most importantly they are 
Anton Altaparmakov, Richard Russon, Szabolcs Szakacsits, Yura Pakhuchiy,
Yuval Fledel, and the author of the groundbreaking FUSE filesystem development 
framework, Miklos Szeredi.
.SH SEE ALSO
.BR ntfsprogs (8),
.BR attr (5),
.BR getfattr (1)