Index: trunk/packages/invirt-base/scripts/invirt-reload
===================================================================
--- trunk/packages/invirt-base/scripts/invirt-reload	(revision 2151)
+++ trunk/packages/invirt-base/scripts/invirt-reload	(revision 2941)
@@ -1,3 +1,12 @@
 #!/bin/bash
+
+if [ "$DPKG_MAINTSCRIPT_PACKAGE" != '' ] && \
+    [ $# = 0 ] && \
+    dpkg-trigger --check-supported 2>/dev/null; then
+    if dpkg-trigger --no-await invirt-base; then
+        echo "invirt-reload: deferring update (trigger activated)"
+        exit 0
+    fi
+fi
 
 for script in $(run-parts --test /etc/init.d); do