--- vbootstrap-0.3/vbootstrap.sh.in.org	2017-08-28 11:20:25.000000000 +0900
+++ vbootstrap-0.3/vbootstrap.sh.in	2017-11-15 20:36:00.154855846 +0900
@@ -102,6 +102,7 @@
 mkdir $INSTDIR/dev
 mknod $INSTDIR/dev/null c 1 3
 mknod $INSTDIR/dev/console c 5 1
+mknod $INSTDIR/dev/urandom c 1 9
 
 # install base vine linux system.
 echo $"Installing basesystem."