Index: xen-3.0.4-testing/tools/python/xen/xend/XendBootloader.py
===================================================================
--- xen-3.0.4-testing.orig/tools/python/xen/xend/XendBootloader.py
+++ xen-3.0.4-testing/tools/python/xen/xend/XendBootloader.py
@@ -22,7 +22,7 @@ from XendLogging import log
 from XendError import VmError
 
 def bootloader(blexec, disk, quiet = False, blargs = '', kernel = '',
-               ramdisk = '', kernel_args = ''):
+               ramdisk = '', kernel_args = '', dryrun = False):
     """Run the boot loader executable on the given disk and return a
     config image.
     @param blexec  Binary to use as the boot loader
@@ -55,6 +55,8 @@ def bootloader(blexec, disk, quiet = Fal
         args = [ blexec ]
         if quiet:
             args.append("-q")
+        if dryrun:
+            args.append("--dryrun")
         args.append("--output=%s" % fifo)
         if blargs:
             args.extend(shlex.split(blargs))