-.TH IMAGEX "1" "October 2012" "imagex (wimlib) wimlib @VERSION@" "User Commands"
+.TH IMAGEX "1" "March 2013" "imagex (wimlib) wimlib @VERSION@" "User Commands"
.SH NAME
imagex-export \- Exports an image from a WIM archive to an existing or new WIM archive
error.
.TP
\fB--check\fR
-When reading \fISRC_WIMFILE\fR, verify its integrity if the integrity table is
-present; additionally, when writing \fIDEST_WIMFILE\fR with the new image added,
-write an integrity table. If this option is not specified, no integrity table
-is included in \fIDEST_WIMFILE\fR, even if there was one before.
+When reading \fISRC_WIMFILE\fR, and \fIDEST_WIMFILE\fR if it exists, verify the
+file's integrity if the integrity table is present; additionally, when writing
+\fIDEST_WIMFILE\fR with the new image added, write an integrity table. If this
+option is not specified, no integrity table is included in \fIDEST_WIMFILE\fR,
+even if there was one before.
.TP
\fB--compress\fR=\fITYPE\fR
Specifies the compression type for \fIDEST_WIMFILE\fR. This is only valid if
You may also specify the actual names of the compression algorithms, "XPRESS"
and "LZX", instead of "fast" and "maximum", respectively.
-
+.TP
+\fB--threads\fR=\fINUM_THREADS\fR
+Number of threads to use for compressing data. Default: autodetect (number of
+processors). Note: if exporting to an uncompressed WIM, or exporting to a WIM
+with the same compression type as the source WIM, additional threads will not
+be used, regardless of this parameter, since no data compression needs to be
+done in these cases.
+.TP
+\fB--rebuild\fR
+When exporting image(s) to an existing WIM: rebuild the entire WIM rather than
+appending 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. Also see
+\fBimagex optimize\fR.
.TP
\fB--ref\fR="\fIGLOB\fR"
File glob of additional split WIM parts that are part of the split WIM being
well).
Here's an example. The names for the split WIMs usually go something like:
-
+
.RS
.PP
.nf
.RE
.PP
+.SH NOTES
+
+Unless \fB--rebuild\fR is specified, aborting an \fBimagex export\fR command
+mid-way through has a small chance of corrupting the destination WIM file.
+However, a precaution is taken against this, so it should be very unlikely. In
+the event of an aborted \fBimagex export\fR, \fBimagex optimize\fR can be run to
+remove extra data that may have been partially appended to the physical
+destination WIM file but not yet incorporated into the structure of the WIM.
+
.SH EXAMPLES
Export the second image of 'boot.wim' to the new WIM file 'new.wim', and
change the compression type to maximum, if it wasn't maximum already: