diff --git a/CMakeLists.txt b/CMakeLists.txt
index f2eba0c..a52f0de 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,6 +16,9 @@ include(Templates)
 bsp_reset()
 sysroot_reset()
 
+sysroot_set_base(
+	PATH ${CMAKE_SOURCE_DIR}/base)
+
 add_subdirectory(kernel)
 add_subdirectory(sys)
 add_subdirectory(lib)
diff --git a/base/boot/grub/grub.cfg b/base/boot/grub/grub.cfg
new file mode 100644
index 0000000..19e9ab3
--- /dev/null
+++ b/base/boot/grub/grub.cfg
@@ -0,0 +1,11 @@
+menuentry "Rosetta" {
+	multiboot /boot/mango_kernel
+	module /boot/rosetta-system.bsp
+	boot
+}
+
+menuentry "Rosetta (Serial Log)" {
+	multiboot /boot/mango_kernel kernel.early-console=ttyS0
+	module /boot/rosetta-system.bsp
+	boot
+}
diff --git a/cmake/Sysroot.cmake b/cmake/Sysroot.cmake
index 80d9f65..01289e1 100644
--- a/cmake/Sysroot.cmake
+++ b/cmake/Sysroot.cmake
@@ -9,6 +9,34 @@ function(sysroot_reset)
 		COMMAND_ERROR_IS_FATAL ANY)
 endfunction(sysroot_reset)
 
+function(sysroot_set_base)
+	set(options)
+	set(one_value_args PATH)
+	set(multi_value_args)
+
+	cmake_parse_arguments(PARSE_ARGV 0 arg
+		"${options}"
+		"${one_value_args}"
+		"${multi_value_args}")
+
+	set(sysroot_target_name _sysroot-base)
+
+	get_property(sysroot_targets GLOBAL PROPERTY sysroot_target_list)
+	list(LENGTH sysroot_targets nr_sysroot_targets)
+	if (${nr_sysroot_targets} GREATER 0)
+		math(EXPR serialiser_index "${nr_sysroot_targets}-1")
+		list(GET sysroot_targets ${serialiser_index} serialiser)
+	endif ()
+
+	add_custom_target(${sysroot_target_name}
+		COMMAND	${Python_EXECUTABLE} ${sysroot_tool}
+			set-base ${sysroot_manifest} ${arg_PATH}
+		COMMENT "Preparing sysroot base"
+		DEPENDS ${serialiser})
+
+	set_property(GLOBAL PROPERTY sysroot_target_list ${sysroot_targets} ${sysroot_target_name})
+endfunction(sysroot_set_base)
+
 function(sysroot_add_library)
 	set(options)
 	set(one_value_args NAME HEADER_DIR LIB_DIR)
@@ -93,7 +121,6 @@ function(sysroot_add_object_library)
 	endif ()
 
 	get_property(tmp TARGET ${target_name} PROPERTY SUFFIX)
-	message(STATUS ${tmp})
 
 	set_property(GLOBAL PROPERTY sysroot_target_list ${sysroot_targets} ${sysroot_target_name})
 endfunction(sysroot_add_object_library)
diff --git a/util/lib/manifest.py b/util/lib/manifest.py
index 6881070..34012ed 100644
--- a/util/lib/manifest.py
+++ b/util/lib/manifest.py
@@ -58,19 +58,21 @@ class Component:
 class Manifest:
     def __init__(self, path):
         self.path = path
+        self.base = None
         self.components = {}
 
     def load(self):
             with open(self.path, 'r') as f:
                 self.data = json.load(f)
 
-            if 'components' not in self.data:
-                return 0
+            if 'components' in self.data:
+                for n, t in self.data['components'].items():
+                    component = Component()
+                    component.deserialise(t)
+                    self.components[n] = component
 
-            for n, t in self.data['components'].items():
-                component = Component()
-                component.deserialise(t)
-                self.components[n] = component
+            if 'base' in self.data:
+                self.base = self.data['base']
 
 
     def save(self):
@@ -81,6 +83,9 @@ class Manifest:
 
             self.data['components'] = component_data
 
+            if self.base is not None:
+                self.data['base'] = self.base
+
             with open(self.path, 'w') as f:
                 json.dump(self.data, f, indent=4)
 
@@ -97,5 +102,14 @@ class Manifest:
         self.components[name] = component
         return component
 
+
+    def set_base(self, path):
+        self.base = path
+
+
+    def get_base(self):
+        return self.base
+
+
     def get_all_components(self):
         return self.components
diff --git a/util/sysroot-tool.py b/util/sysroot-tool.py
index 42354fe..a52a921 100644
--- a/util/sysroot-tool.py
+++ b/util/sysroot-tool.py
@@ -16,6 +16,24 @@ def reset():
     return 0
 
 
+def set_base():
+    if len(sys.argv) < 4:
+        print("USAGE: {} set-base <manifest-path> <base-directory>".format(sys.argv[0]))
+        return -1
+
+    manifest_path = sys.argv[2]
+    base_path = sys.argv[3]
+
+    manifest = Manifest(manifest_path)
+    manifest.load()
+
+    manifest.set_base(base_path)
+
+    manifest.save()
+
+    return 0
+
+
 def add_headers():
     if len(sys.argv) < 6:
         print("USAGE: {} add-headers <manifest-path> <component-name> <dest-directory> <source-directory>".format(sys.argv[0]))
@@ -73,6 +91,13 @@ def build_sysroot():
     manifest = Manifest(manifest_path)
     manifest.load()
 
+    base_dir = manifest.get_base()
+    if base_dir is not None:
+        shutil.copytree(
+                base_dir,
+                sysroot_path,
+                dirs_exist_ok=True)
+
     for n, c in manifest.get_all_components().items():
         for h in c.get_headers():
             header_src = h['src']
@@ -122,6 +147,7 @@ if len(sys.argv) < 2:
 
 commands = {
         'reset': reset,
+        'set-base': set_base,
         'add-headers': add_headers,
         'add-binary': add_binary,
         'build-sysroot': build_sysroot,