1# SPDX-License-Identifier: GPL-2.0-only 2config NTFS_FS 3 tristate "NTFS file system support" 4 select NLS 5 help 6 NTFS is the file system of Microsoft Windows NT, 2000, XP and 2003. 7 8 Saying Y or M here enables read support. There is partial, but 9 safe, write support available. For write support you must also 10 say Y to "NTFS write support" below. 11 12 There are also a number of user-space tools available, called 13 ntfsprogs. These include ntfsundelete and ntfsresize, that work 14 without NTFS support enabled in the kernel. 15 16 This is a rewrite from scratch of Linux NTFS support and replaced 17 the old NTFS code starting with Linux 2.5.11. A backport to 18 the Linux 2.4 kernel series is separately available as a patch 19 from the project web site. 20 21 For more information see <file:Documentation/filesystems/ntfs.rst> 22 and <http://www.linux-ntfs.org/>. 23 24 To compile this file system support as a module, choose M here: the 25 module will be called ntfs. 26 27 If you are not using Windows NT, 2000, XP or 2003 in addition to 28 Linux on your computer it is safe to say N. 29 30config NTFS_DEBUG 31 bool "NTFS debugging support" 32 depends on NTFS_FS 33 help 34 If you are experiencing any problems with the NTFS file system, say 35 Y here. This will result in additional consistency checks to be 36 performed by the driver as well as additional debugging messages to 37 be written to the system log. Note that debugging messages are 38 disabled by default. To enable them, supply the option debug_msgs=1 39 at the kernel command line when booting the kernel or as an option 40 to insmod when loading the ntfs module. Once the driver is active, 41 you can enable debugging messages by doing (as root): 42 echo 1 > /proc/sys/fs/ntfs-debug 43 Replacing the "1" with "0" would disable debug messages. 44 45 If you leave debugging messages disabled, this results in little 46 overhead, but enabling debug messages results in very significant 47 slowdown of the system. 48 49 When reporting bugs, please try to have available a full dump of 50 debugging messages while the misbehaviour was occurring. 51 52config NTFS_RW 53 bool "NTFS write support" 54 depends on NTFS_FS 55 help 56 This enables the partial, but safe, write support in the NTFS driver. 57 58 The only supported operation is overwriting existing files, without 59 changing the file length. No file or directory creation, deletion or 60 renaming is possible. Note only non-resident files can be written to 61 so you may find that some very small files (<500 bytes or so) cannot 62 be written to. 63 64 While we cannot guarantee that it will not damage any data, we have 65 so far not received a single report where the driver would have 66 damaged someones data so we assume it is perfectly safe to use. 67 68 Note: While write support is safe in this version (a rewrite from 69 scratch of the NTFS support), it should be noted that the old NTFS 70 write support, included in Linux 2.5.10 and before (since 1997), 71 is not safe. 72 73 This is currently useful with TopologiLinux. TopologiLinux is run 74 on top of any DOS/Microsoft Windows system without partitioning your 75 hard disk. Unlike other Linux distributions TopologiLinux does not 76 need its own partition. For more information see 77 <http://topologi-linux.sourceforge.net/> 78 79 It is perfectly safe to say N here. 80