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Couple changes, mainly to address stuff raised recently on port-i386

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('Does i386 support NTFS5 now?'):

add a note both NTFS4 and NTFS5 are supported
reformat the Limitations a bit
assert the write support is not really useful, and should not be used
add a BUGS section, note missing stuff for the write support to be useful,
and the disk label thing spotted by Christos Zoulas
This commit is contained in:
jdolecek 2001-10-31 19:16:36 +00:00
parent 04b6a0a047
commit 1295376b01
1 changed files with 42 additions and 12 deletions
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54
sbin/mount_ntfs/mount_ntfs.8
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@ -1,4 +1,4 @@
.\" $NetBSD: mount_ntfs.8,v 1.6 1999/12/17 14:43:07 jdolecek Exp $
.\" $NetBSD: mount_ntfs.8,v 1.7 2001/10/31 19:16:36 jdolecek Exp $
.\"
.\" Copyright (c) 1993,1994 Christopher G. Demetriou
.\" Copyright (c) 1999 Semen Ustimenko
@ -31,7 +31,7 @@
.\"
.\" Id: mount_ntfs.8,v 1.3 1999/05/04 11:34:33 jkoshy Exp
.\"
.Dd January 3, 1999
.Dd October 31, 2001
.Dt MOUNT_NTFS 8
.Os
.Sh NAME
@ -61,10 +61,13 @@ NTFS file system on any directory that they own (provided,
of course, that they have appropriate access to the device that
contains the file system).
.Pp
The supported NTFS versions include both NTFS4, as used by Microsoft
Windows NT 4.0, and NTFS5, as used by Microsoft Windows 2000 and XP.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl a
Force behaviour to return MS-DOS 8.3 names also on
Force behaviour to return MS-DOS 8.3 names also on
.Fn readdir .
.It Fl i
Make name lookup case insensitive for all names except POSIX names.
@ -108,25 +111,37 @@ To read directory raw data:
.Ed
.Pp
.Ss Limited support for writing
There is limited writing ability. Limitations: file must be nonresident,
must not contain any holes (uninitialized areas) and can't be compressed.
There is limited writing ability for files. Limitations:
.Bl -bullet -compact
.It
file must be nonresident
.It
file must
.Em not
contain any holes (uninitialized areas)
.It
file can't be compressed
.El
.Pp
Note that that it's not currently possible to create or remove files
on NTFS filesystem.
.Pp
.Sy Warning:
while read-only mode appears to be very stable and there are
no known problems, the read-write mode
has not been very well tested yet and it may well be possible
that an attempt to write into file residing on NTFS could
damage the filesystem. Don't experiment with read-write mode unless
you are ready to recover the trashed contents any time.
do not mount NTFS filesystems read-write. The write support is
not very useful and is not tested well. It's not safe to write to any file
on NTFS, you might damage the filesystem.
Unless you want to debug NTFS filesystem code, mount the NTFS filesystem
read-only.
.Sh SEE ALSO
.Xr mount 2 ,
.Xr unmount 2 ,
.Xr fstab 5 ,
.Xr disklabel 8 ,
.Xr mount 8
.Sh HISTORY
Support for NTFS first appeared in
.Fx 3.0 .
It has been ported to NetBSD and first appeared here in
It has been ported to NetBSD and first appeared in
.Nx 1.5 .
.Sh AUTHOR
NTFS kernel implementation,
@ -138,3 +153,18 @@ NetBSD port was done by
.An Christos Zoulas Aq christos@NetBSD.org
and
.An Jaromir Dolecek Aq jdolecek@NetBSD.org .
.Sh BUGS
The write support should be enhanced to actually be able change
file size, and to create and remove files and directories.
It's not very useful right now.
.Pp
If the attempt to mount NTFS gives you error like this:
.Bd -literal
# mount -t ntfs /dev/wd0k /mnt
mount_ntfs: /dev/wd0k on /mnt: Invalid argument
.Ed
.Pp
make sure that appropriate partition has correct entry in the
disk label, particularily that the partition offset is correct.
If the NTFS partition is the first partition on the fisk, the
offset should be '63' on i386.