Download: NAME SYNOPSIS DESCRIPTION OPTIONS

WIMLIB-IMAGEX(1) User Commands WIMLIB-IMAGEX(1)

NAME

wimlib-imagex-optimize − Optimize a WIM archive

SYNOPSIS

wimlib-imagex optimize WIMFILE [OPTION...]

DESCRIPTION

wimlib-imagex optimize will rebuild the stand-alone WIM WIMFILE. The new WIM is written to a tem- porary file, and it is renamed to the original file when it’s ready. This action will remove any holes that have been left as a result of appending images, so the new WIM may be slightly smaller than the old WIM. In addition, some errors in the original WIM may be fixed by re-writing it (although most cannot). This command is also available as simply wimoptimize if the appropriate hard link or batch file has been installed.

OPTIONS

-check When reading WIMFILE, verify its integrity if an integrity table is present. In addition, include an integrity table in the optimized WIM. If this option is not specified, by default the integrity table (if present) is not checked, and an integrity table is included in the rebuilt WIM if and only if one was present in the original WIM. -nocheck Neither verify the integrity of WIMFILE using the integrity table, nor include an integrity table in the rebuilt WIM file. -recompress Recompress all compressed streams in WIMFILE when rebuilding it. This will increase the time needed to rebuild the WIM, unless the WIM is uncompressed, but it may result in a better compres- sion ratio if wimlib can do a better job than the program that wrote the original file. A side effect of this is that every stream in the original WIM will be checksummed, so this can help verify that the WIM is intact (equivalent to applying all the images from it). Note: as of wimlib v1.5.3, wimlib’s LZX compressor usually achieves the same or better compres- sion than Microsoft’s, but is slightly slower. -recompress-slow, -compress-slow Spend even more time compressing the data in order to achieve a more optimal compression ratio. For LZX ("maximum") compression, compared to the default -recompress this will make com- pression about twice as slow and may improve the compression ratio by maybe 1%, depending on the data. For LZMS ("recovery") compression this option also has an effect. For XPRESS ("fast") compression this option has no effect; however you may use -compress=LZX -recompress-slow to change the compression type to LZX and recompress slowly, as per this option. In any case, this option implies -recompress. -compress=TYPE Recompress the WIM file using the specified compression type. TYPE may be "none", "fast" (or "XPRESS"), or "maximum" (or "LZX"). This implies -recompress. TYPE may also be "recovery" (or "LZMS"); however, this will result in reduced compatibility. See the documentation for this option to wimlib-imagex capture (1) for more details. -chunk-size=SIZE Set the WIM compression chunk size to SIZE. See the documentation for this option to wimlib- imagex capture (1) for more details. -pack-streams Create a "solid" archive that compresses multiple files together. This can result in a higher compres- sion ratio, but has disadvantages such as reduced compatibility; see the documentation for this option to wimlib-imagex-capture (1) for more details. wimlib-imagex 1.6.0 January 2014 1, WIMLIB-IMAGEX(1) User Commands WIMLIB-IMAGEX(1) -threads=NUM_THREADS Number of threads to use for compressing data. Default: autodetect (number of processors). This parameter is only meaningful when -recompress is also specified. -pipable Rebuild the WIM so that it can be applied fully sequentially, including from a pipe. See wimlib- imagex capture(1) for more details about creating pipable WIMs. By default, when neither -pipable or -not-pipable is specified, the rebuilt WIM will be pipable if and only if it was already pipable. -not-pipable Rebuild the WIM in the non-pipable format. (This is the default if WIMFILE is not pipable.)

NOTES

wimlib-imagex optimize does not support split WIMs. wimlib-imagex optimize is roughly equivalent to: wimlib-imagex export WIMFILE all tmp.wim && mv tmp.wim WIMFILE SEE ALSO wimlib-imagex(1) wimlib-imagex-export(1) wimlib-imagex 1.6.0 January 2014 2]

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