--- /opt/VBoxGuestAdditions-6.1.18/init/vboxadd 2021-03-16 04:06:15.928284593 +0000
+++ /opt/VBoxGuestAdditions-6.1.18/init/vboxadd 2021-03-16 04:07:36.249727179 +0000
@@ -499,9 +499,10 @@
             case "$no_udev" in 1)
                 sleep .5;;
             esac
-            $MODPROBE vboxsf > /dev/null 2>&1 ||
-                info "modprobe vboxsf failed"
         }
+        # HACK
+        $MODPROBE vboxsf > /dev/null 2>&1 ||
+            info "modprobe vboxsf failed"
         case "$no_udev" in 1)
             do_vboxguest_non_udev;;
         esac