diff --git a/src/main/resources/assets/opencomputers/loot/OpenOS/etc/rc.d/example.lua b/src/main/resources/assets/opencomputers/loot/OpenOS/etc/rc.d/example.lua
index c0af382f0..3ac56815f 100644
--- a/src/main/resources/assets/opencomputers/loot/OpenOS/etc/rc.d/example.lua
+++ b/src/main/resources/assets/opencomputers/loot/OpenOS/etc/rc.d/example.lua
@@ -9,5 +9,6 @@ function start(msg)
     print(msg)
   end
   print(count)
+  print("runlevel: " .. require("computer").runlevel())
   count = count + 1
 end
diff --git a/src/main/resources/assets/opencomputers/loot/OpenOS/init.lua b/src/main/resources/assets/opencomputers/loot/OpenOS/init.lua
index cbe820bed..397414a81 100644
--- a/src/main/resources/assets/opencomputers/loot/OpenOS/init.lua
+++ b/src/main/resources/assets/opencomputers/loot/OpenOS/init.lua
@@ -5,6 +5,18 @@ do
   local computer = computer
   local unicode = unicode
 
+  -- Runlevel information.
+  local runlevel, shutdown = "S", computer.shutdown
+  computer.runlevel = function() return runlevel end
+  computer.shutdown = function(reboot)
+    runlevel = reboot and 6 or 0
+    if os.sleep then
+      computer.pushSignal("shutdown")
+      os.sleep(0.1) -- Allow shutdown processing.
+    end
+    shutdown(reboot)
+  end
+
   -- Low level dofile implementation to read filesystem libraries.
   local rom = {}
   function rom.invoke(method, ...)
@@ -151,10 +163,9 @@ do
   computer.pushSignal("init") -- so libs know components are initialized.
 
   status("Initializing system...")
-  os.sleep(0.1)
-
   require("term").clear()
   os.sleep(0.1) -- Allow init processing.
+  runlevel = 1
 end
 
 local function motd()
diff --git a/src/main/resources/assets/opencomputers/lua/kernel.lua b/src/main/resources/assets/opencomputers/lua/kernel.lua
index 61233c2f8..98382f573 100644
--- a/src/main/resources/assets/opencomputers/lua/kernel.lua
+++ b/src/main/resources/assets/opencomputers/lua/kernel.lua
@@ -1241,7 +1241,7 @@ local libcomputer = {
   end,
 
   shutdown = function(reboot)
-    coroutine.yield(reboot ~= nil and reboot ~= false)
+    coroutine.yield(not not reboot)
   end,
   pushSignal = function(...)
     return spcall(computer.pushSignal, ...)