diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1f65368
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+serialOut
+disk.img
+kernel
+kernel.sym
+userspace/user
diff --git a/README.md b/README.md
index 6ee41f0..3486fc0 100644
--- a/README.md
+++ b/README.md
@@ -32,6 +32,8 @@ gdb could be launch with debug symbols using :
 
  `make debug`
 
+Serial log will be saved in the `serialOut` file.
+
 Then you can check some matos specific commands or pretty printing with
 
  `help user-defined`