vss: note that it's only supported on Vista and later

[wimlib] / doc / man1 / wimlib-imagex-capture.1

diff --git a/doc/man1/wimlib-imagex-capture.1 b/doc/man1/wimlib-imagex-capture.1
index a48db594969591c4cffe8055299a5cf257e6293a..6198d52b1c6f06c171121d4f710149f4a5431d27 100644 (file)
--- a/doc/man1/wimlib-imagex-capture.1
+++ b/doc/man1/wimlib-imagex-capture.1
@@ -576,6 +576,16 @@ however, this may still be overridden through the \fB--config\fR parameter.
 .TP
 \fB--unsafe-compact\fR
 See the documentation for this option in \fBwimlib-imagex-optimize\fR (1).
+.TP
+\fB--snapshot\fR
+EXPERIMENTAL: create a temporary filesystem snapshot of the source directory and
+capture the files from it.  Currently, this option is only supported on Windows
+(Vista and later), where it uses the Volume Shadow Copy Service (VSS).  Using
+this option, you can create a consistent backup of the system volume of a
+running Windows system without running into problems with locked files.  For the
+VSS snapshot to be successfully created, \fBwimlib-imagex\fR must be run as an
+Administrator, and it cannot be run in WoW64 mode (i.e. if Windows is 64-bit,
+then \fBwimlib-imagex\fR must be 64-bit as well).
 .SH NOTES
 \fBwimlib-imagex append\fR does not support appending an image to a split WIM.
 .PP