DS6.9, Embedded Bootworks, Ghost, and -Preserve Switch?

I'm using DS 6.9SP5MR1 to image machines successfully if I PXE boot, but if I use the embedded Bootworks partition the process fails if I specify the -PRESERVE switch on the command line.  I get the dreaded 36000 internal consistency error and the GHOSTERR log notes "Attempt to write to Bootworks partition blocked".

If I remove the -PRESERVE switch is removed then the image gets deployed properly.

My commandline from the internal Distribute Disk Image task in DS:

ghost64.exe -clone,MODE=restore,SRC=%IMAGE_FILENAME%,DST=1:1 -PRESERVE=1:1\MigrationData=MigrationData -PRESERVEDEST=1:1 -sure

Any thoughts on how I can get Ghost to ignore the Bootworks partition when restoring an image?  All of the Bootworks-related switches I've found have to do with RapidDeploy and of course going that way I'd lose the ability to preserve a directory.