1 files changed, 23 insertions, 0 deletions
diff --git a/debian/virtualbox-dkms.preinst b/debian/virtualbox-dkms.preinst
new file mode 100644
index 00000000..03ad90b7
--- /dev/null
+++ b/debian/virtualbox-dkms.preinst
@@ -0,0 +1,23 @@
+#!/bin/sh
+
+set -e
+
+#DEBHELPER#
+
+case "$1" in
+  install|upgrade)
+		# These are no longer used
+		for mod in vboxdrv vboxnetflt vboxnetadp; do
+			dkms status -m $mod | while read line; do
+				if echo "$line" | grep -q added > /dev/null ||
+					echo "$line" | grep -q built > /dev/null ||
+					echo "$line" | grep -q installed > /dev/null;
+				then
+					version=`echo "$line" | sed "s/$mod,\([^,]*\)[,:].*/\1/;t;d"`
+					echo "Removing obsolete module $mod version $version"
+					dkms remove -m $mod -v $version --all
+				fi
+			done
+		done
+  ;;
+esac