mount_ntfs(8) - NetBSD Manual Pages

MOUNT_NTFS(8)           NetBSD System Manager's Manual           MOUNT_NTFS(8)


NAME

     mount_ntfs - mount an NTFS file system


SYNOPSIS

     mount_ntfs [-a] [-i] [-u uid] [-g gid] [-m mask] special node


DESCRIPTION

     The mount_ntfs command attaches the NTFS filesystem residing on the de-
     vice special to the global filesystem namespace at the location indicated
     by node.  This command is normally executed by mount(8) at boot time, but
     can be used by any user to mount an 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).

     The supported NTFS versions include both NTFS4, as used by Microsoft Win-
     dows NT 4.0, and NTFS5, as used by Microsoft Windows 2000 and XP.

     The options are as follows:

     -a      Force behaviour to return MS-DOS 8.3 names also on readdir().

     -i      Make name lookup case insensitive for all names except POSIX
             names.

     -u uid  Set the owner of the files in the file system to uid.  The de-
             fault owner is the owner of the directory on which the file sys-
             tem is being mounted.

     -g gid  Set the group of the files in the file system to gid.  The de-
             fault group is the group of the directory on which the file sys-
             tem is being mounted.

     -m mask
             Specify the maximum file permissions for files in the file sys-
             tem.


FEATURES

   NTFS file attributes
     NTFS file attributes can be accessed in following way:

           foo[[:ATTRTYPE]:ATTRNAME]

     `ATTRTYPE' is one of identifier listed in $AttrDef file of volume. De-
     fault is $DATA.  `ATTRNAME' is an attribute name. Default is none.

     Examples:

     To get volume name (in Unicode):

           # cat /mnt/\$Volume:\$VOLUME_NAME

     To read directory raw data:

           # cat /mnt/foodir:\$INDEX_ROOT:\$I30

   Limited support for writing
     There is limited writing ability for files. Limitations:
     +   file must be nonresident
     +   file must not contain any holes (uninitialized areas)
     +   file can't be compressed

     Note that that it's not currently possible to create or remove files on
     NTFS filesystem.

     Warning: 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.


SEE ALSO

     mount(2), unmount(2), fstab(5), disklabel(8), mbrlabel(8), mount(8)


HISTORY

     Support for NTFS first appeared in FreeBSD 3.0.  It has been ported to
     NetBSD and first appeared in NetBSD 1.5.


AUTHORS

     NTFS kernel implementation, mount_ntfs and this manual were originally
     written by Semen Ustimenko <semenu@FreeBSD.org>.

     The NetBSD port was done by
     Christos Zoulas <christos@NetBSD.org> and
     Jaromir Dolecek <jdolecek@NetBSD.org>.


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 use-
     ful right now.

     If the attempt to mount NTFS gives you error like this:

     # mount -t ntfs /dev/wd0k /mnt
     mount_ntfs: /dev/wd0k on /mnt: Invalid argument

     make sure that appropriate partition has correct entry in the disk label,
     particularily that the partition offset is correct.  If the NTFS parti-
     tion is the first partition on the fisk, the offset should be '63' on
     i386 (see disklabel(8)).  mbrlabel(8) could help you to setup the disk
     label correctly.

     If you mark the NTFS partition as `dynamic' under Microsoft Windows XP,
     it won't be possible to access it under NetBSD anymore.

NetBSD 1.6                     October 31, 2001                              2