diff --git a/README.md b/README.md
index 5633890..7b1af9e 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,6 @@ First build will take a while (GCC, Linux kernel).
 
 QEMU opens up, and you can run:
 
-    root
     insmod /hello.ko
     insmod /hello2.ko
     rmmod hello
diff --git a/rootfs_overlay/etc/inittab b/rootfs_overlay/etc/inittab
new file mode 100644
index 0000000..debf9a4
--- /dev/null
+++ b/rootfs_overlay/etc/inittab
@@ -0,0 +1,3 @@
+# /etc/inittab
+# https://unix.stackexchange.com/questions/299408/how-to-login-automatically-without-typing-root-in-buildroot-x86-64-qemu
+console::respawn:/bin/sh
diff --git a/run b/run
index 941960e..e2fb2c5 100755
--- a/run
+++ b/run
@@ -5,6 +5,7 @@ make BR2_EXTERNAL="$(pwd)/../kernel_module" qemu_x86_64_defconfig
 echo '
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="../kernel-config-frag"
 BR2_PACKAGE_KERNEL_MODULE=y
+BR2_ROOTFS_OVERLAY="../rootfs_overlay"
 ' >> .config
 env -u LD_LIBRARY_PATH make BR2_JLEVEL="$(($(nproc) - 2))" kernel_module-rebuild all
 qemu-system-x86_64 -M pc -kernel output/images/bzImage -drive file=output/images/rootfs.ext2,if=virtio,format=raw -append root=/dev/vda -net nic,model=virtio -net user