Try to make clear the option --output feeds data into a partition, but
does not create the partition.
If
.I FILE
is '\-' then clone to the
-standard output.
+standard output. This option cannot be used for creating a partition,
+use \fB\-\-overwrite\fR for an existing partition.
.TP
\fB\-O\fR, \fB\-\-overwrite\fR FILE
Clone NTFS to
.IR FILE ,
-overwriting if exists.
+which can be an existing partition or a regular file which will be
+overwritten if it exists.
.TP
\fB\-s\fR, \fB\-\-save\-image\fR
Save to the special image format. This is the most efficient way space and