WIMLIB-IMAGEX - Online Linux Manual PageSection : 1
Updated : December 2021
Source : wimlib 1.13.5
Note : User Commands
NAMEwimlib-imagex − Extract, create, modify, or mount a WIM archive
SYNOPSISwimlib-imagex append arguments... (or wimappend arguments...)
wimlib-imagex apply arguments... (or wimapply arguments...)
wimlib-imagex capture arguments... (or wimcapture arguments...)
wimlib-imagex delete arguments... (or wimdelete arguments...)
wimlib-imagex dir arguments... (or wimdir arguments...)
wimlib-imagex export arguments... (or wimexport arguments...)
wimlib-imagex extract arguments... (or wimextract arguments...)
wimlib-imagex info arguments... (or wiminfo arguments...)
wimlib-imagex join arguments... (or wimjoin arguments...)
wimlib-imagex mount arguments... (or wimmount arguments...)
wimlib-imagex mountrw arguments... (or wimmountrw arguments...)
wimlib-imagex optimize arguments... (or wimoptimize arguments...)
wimlib-imagex split arguments... (or wimsplit arguments...)
wimlib-imagex unmount arguments... (or wimunmount arguments...)
wimlib-imagex update arguments... (or wimupdate arguments...)
wimlib-imagex verify arguments... (or wimverify arguments...)
DESCRIPTIONwimlib-imagex deals with archive files in the Windows Imaging (WIM) format. Its interface is similar to Microsoft's ImageX, but wimlib-imagex is cross-platform and has useful improvements and extensions. To do its work, wimlib-imagex uses wimlib, an open source C library that provides interfaces for manipulating WIM archives. wimlib is completely independent from the equivalent Microsoft implementation (WIMGAPI, or wimgapi.dll). You can use wimlib in your own programs, although for command-line use wimlib-imagex already provides access to most of wimlib's functionality.
BACKGROUND INFORMATIONThe Windows Imaging (WIM) format was designed by Microsoft primarily for archiving Windows filesystems, such as NTFS. However, it can be used on other platforms as well, with some limitations. A WIM archive contains one or more images, each of which is a logically independent directory tree. Images are indexed starting from 1, and each may also have a name. File data is stored as content-addressable "blobs" that are deduplicated across the entire archive. Data may be compressed using one of several compression algorithms. An update of the WIM format which Microsoft released with Windows 8 uses solid-mode LZMS compression to achieve a better compression ratio. Such files are also called "ESD files" and may have the .esd extension instead of .wim. wimlib fully supports these files except when they are encrypted.
COMMANDSwimlib-imagex accepts one of a number of commands (listed above in SYNOPSYS), and additional arguments depending on the specific command. Although wimlib-imagex will print usage information with --help or if you invoke it incorrectly, the full documentation for each wimlib-imagex command can be found in the appropriate manual page. Note: if appropriate hard links or batch files have been installed, a command wimlib-imagex COMMAND can also be accessed as simply wimCOMMAND; for example, wimapply for wimlib-imagex apply. For brevity the documentation uses the shorter names.
GENERAL FEATURESThe following are some of the general features, or use cases, currently supported by wimlib-imagex, and pointers to the relevant commands: • Display information about a WIM file (wiminfo) • List the files in a WIM image (wimdir) • Extract, or "apply", a full WIM image (wimapply) • Extract files or directories from a WIM image (wimextract) • Capture a WIM image and save it to a new WIM file (wimcapture) • Capture a WIM image and append it to an existing WIM file (wimappend) • Modify a WIM image by adding, deleting, or renaming files (wimupdate) • (Linux only) Mount a WIM image read-only (wimmount) • (Linux only) Mount a WIM image read-write (wimmountrw) • Delete an image from a WIM file (wimdelete) • Export image(s) from a WIM file (wimexport) • Change the name or description of a WIM image (wiminfo) • Change the bootable image index of a WIM file (wiminfo) • Rebuild, and optionally recompress, a WIM file (wimoptimize) • Split a WIM file into multiple parts (wimsplit) • Join a split WIM (wimjoin) • Verify the validity and integrity of a WIM file (wimverify)
DETAILED FEATURESThis section presents some of the interesting features of wimlib-imagex in more detail. • Multi-platform support. wimlib-imagex is supported on both UNIX-like systems (mainly Linux, but also FreeBSD, Mac OS X, etc.) and Windows. Most code is shared among all platforms, but platform-specific features are still supported when possible. • XPRESS, LZX, and LZMS compression and decompression. wimlib contains advanced implementations of all these compression algorithms. These have been improved over time and now usually outperform and outcompress their Microsoft equivalents, while remaining fully compatible. • Solid-mode compression, or "ESD file", support. "ESD files" are an updated WIM format that uses solid LZMS compression to achieve a better compression ratio. • Multithreaded compression. By default, wimlib's data compression is multithreaded and will use all available processors. • On UNIX-like systems, integration with libntfs-3g allows capturing a WIM image directly from an NTFS volume, or applying a WIM image directly to an NTFS volume. This allows saving and restoring NTFS-specific data and metadata, such as security descriptors and named data streams, which would otherwise only be supported on Windows. • On UNIX-like systems, optional support for saving and restoring standard UNIX file permissions (owner/group/mode), UNIX special files, and extended attributes. (This is a wimlib extension; Microsoft's WIM software ignores this extra information.) • On Linux, support for mounting WIM images with FUSE (Filesystem in UserSpacE), both readonly and read-write. • Split WIMs. A split WIM is a WIM archive split into multiple parts. wimsplit can create a split WIM from a standalone WIM, and wimjoin can create a standalone WIM from a split WIM. • Delta WIMs. A delta WIM contains image metadata but excludes file data already present in another WIM file. A delta WIM can be created using wimcapture with the --delta-from option. • "Pipable" WIMs. As a wimlib extension (not compatible with the Microsoft implementation), wimcapture supports capturing a WIM file to standard output in a special "pipable" format which can later be applied by sending it to wimapply on standard input. Among other things, this can be used to pipe images to or from a server over the network to implement fast filesystem imaging and restore. • Support for WIM integrity tables. Although file data in WIM archives is always checksummed, there can also be an extra set of checksums (an "integrity table") associated with the WIM file itself to provide extra integrity assurance. The --check option to several wimlib-imagex commands can be used to verify or add these extra checksums. • Fast incremental backups. Because WIM archives use content-addressible file data, the contents of files are automatically deduplicated. In addition, using the --update-of option of wimcapture or wimappend, you can optimize an image capture so that files that are unmodified based on timestamps are not even read from disk. • Windows-specific image metadata support. When capturing an image of a Windows operating system, wimlib will automatically populate XML metadata fields such as the Windows OS version details by scanning well-known system files. • WIMBoot support. On Windows 8.1 and later, files can be "externally backed" by a WIM archive with the help of Microsoft's Windows Overlay Filesystem (WOF) filter driver. With the --wimboot option, wimapply will extract "pointer files" to the WIM archive rather than the files themselves. • VSS snapshot support. On Windows, wimcapture or wimappend with the --snapshot option will automatically create a temporary VSS snapshot and capture the image from it. This can be used to image a "live" Windows system. • Long path support on Windows. wimlib-imagex can capture and apply files with paths exceeding the MAX_PATH (260 character) limitation of the Win32 subsystem. • Non-Administrator support on Windows. You can run wimlib-imagex without Administrator rights, subject to some limitations.
COMMON OPTIONSThe following options work for all wimlib-imagex commands: --help Display the help, then exit. --version Display the version and legal information, then exit. --quiet Suppress informational and progress messages.
CASE SENSITIVITYBy default, the case sensitivity of wimlib-imagex differs somewhat between UNIX-like systems and Windows. WIM images may (but usually do not) have multiple files with the same case-insensitive name. Internally, wimlib stores filenames as case-sensitive, but on Windows paths actually provided by the user for use in a WIM image (e.g. for extracting, adding, renaming, or deleting files) will by default be treated as case-insensitive in order to get the "expected" behavior. This differs from the default behavior on UNIX-like systems, where such paths will be treated as case-sensitive. Note that with case insensitivity, a path component may in general be ambiguous due to multiple files or directories having the same case-insensitive name. In such cases, if there is a file or directory with an exactly matching name, it is chosen; otherwise, one of the case-insensitively matching file or directories is chosen arbitrarily. The default case sensitivity of wimlib-imagex can be overridden by explicitly setting the environmental variable WIMLIB_IMAGEX_IGNORE_CASE to 1, in which case such paths will be treated case insensitively, or 0, in which such paths will be treated case sensitively. Regardless of these settings, options and non-path arguments must be specified in lower case.
LICENSEwimlib-imagex may be redistributed and/or modified under the terms of the GNU General Public License; either version 3 of the License, or (at your option) any later version. There is NO WARRANTY, to the extent permitted by law.
REPORTING BUGSReport bugs to https://wimlib.net/forums/. Feedback and suggestions are also welcome.
SEE ALSOwimappend(1), wimapply(1), wimcapture(1), wimdelete(1), wimdir(1), wimexport(1), wimextract(1), wiminfo(1), wimjoin(1), wimmount(1), wimmountrw(1), wimoptimize(1), wimsplit(1), wimunmount(1), wimupdate(1), wimverify(1), 0
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