WIMLIB
-This is wimlib version 1.0.0 (September 2012). wimlib can be used to read,
+This is wimlib version 1.0.3 (September 2012). wimlib can be used to read,
write, and mount files in the Windows Imaging Format (WIM files). These
files are normally created by using the `imagex.exe' utility on Windows,
-but this library provides a free implementetion of imagex for UNIX-based
+but this library provides a free implementation of imagex for UNIX-based
systems.
WIM FILES
the LZX documentation is not entirely correct, and the WIM documentation itself
is very incomplete and is of unacceptable quality.
+A WIM file may be either stand-alone or split into multiple parts.
+
WINDOWS PE
A major use for this library is to create customized images of Windows PE, the
image of Windows PE that can be put on a CD or USB drive, or published on a
server for PXE booting. See the main page `doc/mkwinpeiso.1' for more details.
+ COMPRESSION RATIO
+
+wimlib can create XPRESS or LZX compressed WIM archives. As of wimlib v1.0.3,
+the XPRESS compression ratio is slightly better than that provided by
+Microsoft's software, while the LZX compression ratio is approaching that of
+Microsoft's software but is not quite there yet. Running time is as good as or
+better than Microsoft's software.
+
+The following tables compare the compression ratio and performance for creating
+a compressed Windows PE image (disk usage of about 524 MB, uncompressed WIM size
+361 MB):
+
+ Table 1. WIM size
+
+ XPRESS Compression LZX Compression
+ wimlib imagex (v1.0.2): 145,283,871 bytes 139,288,293 bytes
+ wimlib imagex (v1.0.3): 139,288,293 bytes 131,379,869 bytes
+ Microsoft imagex.exe: 140,406,981 bytes 127,249,176 bytes
+
+ Table 2. Time to create WIM
+
+ XPRESS Compression LZX Compression
+ wimlib imagex (v1.0.2): 18 sec 49 sec
+ wimlib imagex (v1.0.3): 19 sec 30 sec
+ Microsoft imagex.exe: 25 sec 89 sec
+
+
DEPENDENCIES
* libxml2
* libntfs-3g
Unless configured with --without-ntfs-3g, wimlib requires the library
- and headers for libntfs-3g to be installed. Currently, the libntfs-3g
- version dated 2012-1-15 is required because I've cloned some of the code
- from the library, and it needs to compiled against the same version.
- I'm hoping to be able to use future version of libntfs-3g without code
- cloning after submitting some patches, however.
+ and headers for libntfs-3g version 2011-4-12 or later to be installed.
+ Versions dated 2010-3-6 and earlier do not work because they are missing
+ the header xattrs.h (and the file xattrs.c, which contains functions we
+ need).
* cdrkit (optional)
* mtools (optional)
It has been tested on x86 (32-bit) GNU/Linux occasionally.
-I have tested a previous version of wimlib on FreeBSD and it worked, but this is
-not well tested, especially with the more recent versions of this software.
+wimlib may work on FreeBSD. However, this is not well tested. If you do not
+have libntfs-3g 2011-4-12 or later available, you must configure with
+--without-ntfs-3g. Also, GNU coreutils is needed to run the test suite. Before
+mounting a WIM you need to load the POSIX message queue module (run `kldload
+mqueuefs').
wimlib should work on big endian machines but it has not been tested.
The code in ntfs-apply.c and ntfs-capture.c uses the NTFS-3g library, which is a
library for reading and writing to NTFS filesystems (the filesystem used by
-recent versions of Windows). Additionally, the code in ntfs-3g-security.c is
-mostly copied from NTFS-3g, but I'm hoping to get rid of this file eventually.
-See http://www.tuxera.com/community/ntfs-3g-download/ for more information.
+recent versions of Windows). See
+http://www.tuxera.com/community/ntfs-3g-download/ for more information.
lzx-decomp.c, the code to decompress WIM file resources that are compressed
using LZX compression, is originally based on code from the cabextract project
LICENSE
As of version 1.0.0, wimlib is released under the GNU GPL version 3.0 or later.
-This includes the files in the `programs' directory.
+This includes the files in the `programs' directory as well as the files in the
+`src' directory.
+
+wimlib is independently developed and does not contain any code, data, or files
+copyrighted by Microsoft. It is not known to be affected by any patents.
DISCLAIMER
git://wimlib.net / wimlib / blobdiff