wimlib-imagex-update(1)
NAME
wimlib-imagex-update - Update a WIM image
SYNOPSIS
wimlib-imagex update WIMFILE [IMAGE] [OPTION...] [< CMDFILE]
DESCRIPTION
wimlib-imagex update modifies the specified IMAGE in the Windows Imaging (WIM) file WIMFILE by adding, deleting, or renaming files or directories in it. This command is also available as simply wimupdate if the appropriate hard link or batch file has been installed. IMAGE specifies the image in WIMFILE to update. It may be a 1-based index of an image in the WIM or the name of an image in the WIM. Use the wimlib-imagex info (1) command to list the images a WIM file contains. IMAGE may be omitted if WIMFILE contains only one image. The modifications to perform on the WIM image are specified as a sequence of commands, one per line, read in a text file from standard input. It is recommended that standard input be redirected from a file (CMDFILE), as shown above, rather than typing in commands interactively. Alternatively, to specify a command directly on the command line, see the --command option.
AVAILABLE COMMANDS
This section documents the commands that may appear in the CMDFILE
described above.
add [OPTION...] SOURCE DESTINATION
Add a file or directory tree to the WIM image. SOURCE must specify the
path to a file or directory on your filesystem. DESTINATION must
specify the path inside the WIM image at which to add the file or
directory tree.
If DESTINATION names an existing directory in the WIM image, then
SOURCE must also name a directory. This causes the contents of the
SOURCE directory to be added to the DESTINATION directory.
If DESTINATION names an existing nondirectory file in the WIM image,
then SOURCE must also name a nondirectory file. By default, this
causes the DESTINATION file to be replaced with the SOURCE file. Or,
with --no-replace specified, this generates an error.
If DESTINATION does not exist in the WIM image, then any prerequisite
directories are created as needed to add the SOURCE at that location.
The add command supports a subset of the options accepted by wimlib-
imagex capture; namely, --dereference, --unix-data, --no-acls, and
--strict-acls. See wimlib-imagex-capture (1) for explanations of these
options.
In addition, the add command supports the --no-replace option, which
causes the add command to refuse to overwrite existing nondirectory
files in the WIM image.
delete [OPTION...] PATH
Delete a file or directory tree from the WIM image. PATH must specify
the path inside the WIM image of the file or directory tree to delete.
The available options for the delete command are:
--force
Do not issue an error if the path to delete does not exist.
--recursive
Delete the file or directory tree recursively; if not specified,
an error is issued if the path to delete is a directory.
rename OLD_PATH NEW_PATH
Rename a file or directory tree inside the WIM image. OLD_PATH must
specify the old path of the file or directory tree inside the WIM
image, and NEW_PATH must specify the new path for the file or directory
tree. This command follows the semantics of the POSIX rename (3)
function; in particular, a pre-existing file at NEW_PATH will be
deleted if present, except in certain cases such as attempting to
rename a directory to a non-directory, which is not allowed.
There are no options available for the rename command.
OPTIONS
The following options are accepted on the command line by wimlib-imagex
update itself:
--dereference
Use --dereference for all add commands.
--unix-data
Use --unix-data for all add commands.
--no-acls
Use --no-acls for all add commands.
--strict-acls
Use --strict-acls for all add commands.
--no-replace
Use --no-replace for all add commands.
--config=FILE
Set the capture configuration file for all add commands. See the
description of this option in wimlib-imagex-capture (1).
--force
Use --force for all delete commands.
--recursive
Use --recursive for all delete commands.
--check
When reading WIMFILE, verify its integrity if the integrity table
is present; in addition, include an integrity table in the
updated WIM. If this option is not specified, an integrity table
will be included in the updated WIM if and only if one was
present before.
--threads=NUM_THREADS
Number of threads to use for compressing newly added files.
Default: autodetect (number of processors).
--rebuild
Rebuild the entire WIM rather than appending the updated data to
the end of it. Rebuilding the WIM is slower, but will save a
little bit of space that would otherwise be left as a hole in the
WIM file.
See wimlib-imagex-optimize (1) for a more customizable way of
rebuilding (and optionally recompressing) a WIM file. If running
wimlib-imagex optimize after wimlib-imagex update, there is no
need to specify --rebuild to wimlib-imagex update.
--command=STRING
Instead of reading update commands from standard input, read a
single update command directly from the string STRING specified
on the command line. This option cannot be provided more than
one time and cannot be used to specify more than one update
command. Note that the STRING, as well as any paths containing
spaces within the STRING must be appropriately quoted. If
running from cmd.exe on Windows, you should use double quotes for
the outer quotes and single quotes for the inner quotes.
Example:
wimlib-imagex update boot.wim 1 \
--command="add 'C:\My Dir' '\My Dir'"
This option is provided for convenience only. Do not execute
wimlib-imagex update multiple consecutive times, each time
passing the --command option! This is inefficient. Instead,
generate an update command file and provide it (on standard
input) to a single invocation of wimlib-imagex update, as
explained in this document.
--wimboot-config=FILE
If this option is specified, no commands shall be read from
standard input, and instead the following command shall be
executed:
add FILE /Windows/System32/WimBootCompress.ini
This sets FILE as the WIMBoot configuration file for the image.
The [PrepopulateList] section of this file specifies path globs
that shall not be extracted as WIMBoot pointer files (perhaps due
to being needed early in the boot process). See the
documentation for the --wimboot option of wimlib-imagex apply (1)
for more information.
--unsafe-compact
Compact the WIM archive in-place and append any new data,
eliminating "holes". In general, this option should not be used
because a failed or interrupted compaction will corrupt the WIM
archive. For more information, see the documentation for this
option in wimlib-imagex-optimize (1).
NOTES
wimlib-imagex update is partly redundant with wimlib-imagex mountrw, since if a WIM image can be mounted read-write, then there theoretically is no need for wimlib-imagex update. The main advantage of wimlib-imagex update is that it works on both UNIX-like systems and Windows, whereas wimlib-imagex mountrw is only available on UNIX-like systems, and even then it only works on those with a compatible FUSE implementation. Symbolic links inside a WIM image are not dereferenced when being interpreted. So, for example, if you have a WIM image that contains a symbolic link "/Documents and Settings" -> "/Users" where "/Users" is a directory, then a subdirectory named "Public" in this directory must be specified as "/Users/Public" rather than "/Documents and Settings/Public". All paths to files or directories within the WIM image must be specified relative to the root of the image. However, the leading slash is optional, and both forward slashes and backslashes are accepted. In addition, on Windows, the paths are by default treated case-insensitively, while on UNIX-like systems, the paths are by default treated case-sensitively. The default case sensitivity may be changed by setting the WIMLIB_IMAGEX_IGNORE_CASE environmental variable to 0 or 1. The command file (CMDFILE) is parsed by wimlib-imagex update itself and not by the system shell. Therefore, its syntax is limited. However, comment lines beginning with '#' are allowed, and it is also possible to quote arguments with whitespace inside them. On UNIX-like systems, you cannot use wimlib-imagex update to add files to an image directly from an NTFS volume using libntfs-3g, even though wimlib-imagex capture supports capturing a full image this way. Except when using --unsafe-compact, it is safe to abort a wimlib-imagex update command partway through; however, after doing this, it is recommended to run wimlib-imagex optimize to remove any data that was appended to the physical WIM file but not yet incorporated into the structure of the WIM, unless --rebuild was specified, in which case you should delete the temporary file left over.
EXAMPLES
All the examples below show the update command file to be created as
well as the wimlib-imagex update command to run to perform the updates.
Delete two files from a WIM image:
update_commands.txt:
delete /setup.exe
delete /sources/setup.exe
$ wimlib-imagex update boot.wim 2 < update_commands.txt
Add some files and directories to a WIM image. Note that the first
path of each add command specifies the files to add, while the second
path of each add command specify the locations at which to to add them
inside the WIM image:
update_commands.txt:
add somedir /dir
add somefile /dir/file
$ wimlib-imagex update boot.wim 2 < update_commands.txt
Rename a file inside a WIM image.
update_commands.txt:
rename /dir_in_wim/oldfile.txt /dir_in_wim/newfile.txt
$ wimlib-imagex update boot.wim 2 < update_commands.txt
Using additional features, such as comments, options, and overlays, and
including an integrity table in the updated WIM:
update_commands.txt:
#
# This file specifies some changes to make to a WIM image.
#
# Add a new directory containing files I want in the image.
# The quotes are necessary because the directory name
# contains a space.
add "My Directory" "/My Directory"
# Add the contents of "Another Directory" to the
# "/My Directory" we just created in the WIM image. Since
# the destination path already exists, this performs an
# overlay.
add "Another Directory" "/My Directory"
# Rename some file for some reason.
rename /dir_in_wim/oldfile.txt /dir_in_wim/newfile.txt
# Delete an unwanted directory.
delete --recursive /Users/Me/Documents/Junk
$ wimlib-imagex update boot.wim 2 --check < update_commands.txt
SEE ALSO
wimlib-imagex(1) wimlib-imagex-capture(1) wimlib-imagex-info(1) wimlib- imagex-mountrw(1) wimlib-imagex-optimize(1)
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