Index: head/libexec/rc/rc.d/random
===================================================================
--- head/libexec/rc/rc.d/random
+++ head/libexec/rc/rc.d/random
@@ -25,7 +25,8 @@
 	for f ; do
 		debug "saving entropy to $f"
 		dd if=/dev/random of="$f" bs=4096 count=1 status=none &&
-			chmod 600 "$f"
+			chmod 600 "$f" &&
+			fsync "$f" "$(dirname "$f")"
 	done
 	umask ${oumask}
 }
@@ -120,6 +121,9 @@
 			dd if=/dev/random of=${entropy_file_confirmed} \
 			    bs=4096 count=1 2> /dev/null ||
 			    warn 'write failed (unwriteable file or full fs?)'
+			fsync "${entropy_file_confirmed}" \
+			    "$(dirname "${entropy_file_confirmed}")" \
+			    2> /dev/null
 			echo '.'
 			;;
 		esac
@@ -145,6 +149,9 @@
 			dd if=/dev/random of=${entropy_boot_file_confirmed} \
 			    bs=4096 count=1 2> /dev/null ||
 			    warn 'write failed (unwriteable file or full fs?)'
+			fsync "${entropy_boot_file_confirmed}" \
+			    "$(dirname "${entropy_boot_file_confirmed}")" \
+			    2> /dev/null
 			echo '.'
 			;;
 		esac
Index: head/libexec/save-entropy/save-entropy.sh
===================================================================
--- head/libexec/save-entropy/save-entropy.sh
+++ head/libexec/save-entropy/save-entropy.sh
@@ -90,5 +90,6 @@
 done
 
 dd if=/dev/random of=saved-entropy.1 bs=${entropy_save_sz} count=1 2>/dev/null
+fsync saved-entropy.1 "."
 
 exit 0