diff --git a/ports/src/noux/dir_file_system.h b/ports/src/noux/dir_file_system.h
index 81e0973fc1..7d69a477c0 100644
--- a/ports/src/noux/dir_file_system.h
+++ b/ports/src/noux/dir_file_system.h
@@ -23,6 +23,8 @@
 #include <tar_file_system.h>
 #include <fs_file_system.h>
 #include <terminal_file_system.h>
+#include <null_file_system.h>
+#include <zero_file_system.h>
 
 namespace Noux {
 
@@ -96,6 +98,18 @@ namespace Noux {
 						continue;
 					}
 
+					if (sub_node.has_type("null")) {
+						_append_file_system(new Null_file_system());
+
+						continue;
+					}
+
+					if (sub_node.has_type("zero")) {
+						_append_file_system(new Zero_file_system());
+
+						continue;
+					}
+
 					{
 						char type_name[64];
 						sub_node.type_name(type_name, sizeof(type_name));
diff --git a/ports/src/noux/null_file_system.h b/ports/src/noux/null_file_system.h
new file mode 100644
index 0000000000..ef30b9b57b
--- /dev/null
+++ b/ports/src/noux/null_file_system.h
@@ -0,0 +1,178 @@
+/*
+ * \brief  null filesystem
+ * \author Josef Soentgen
+ * \date   2012-07-31
+ */
+
+/*
+ * Copyright (C) 2012 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+#ifndef _NOUX__NULL_FILE_SYSTEM_H_
+#define _NOUX__NULL_FILE_SYSTEM_H_
+
+/* Genode includes */
+#include <base/printf.h>
+#include <util/string.h>
+
+/* Noux includes */
+#include <noux_session/sysio.h>
+#include "file_system.h"
+
+
+namespace Noux {
+
+	class Null_file_system : public File_system
+	{
+		private:
+
+			const char *_filename() { return "null"; }
+
+			bool _is_root(const char *path)
+			{
+				return (strcmp(path, "") == 0) || (strcmp(path, "/") == 0);
+			}
+
+			bool _is_null_file(const char *path)
+			{
+				return (strlen(path) == (strlen(_filename()) + 1)) &&
+				        (strcmp(&path[1], _filename()) == 0);
+			}
+
+		public:
+
+			Null_file_system() { }
+
+
+			/*********************************
+			 ** Directory-service interface **
+			 *********************************/
+
+			Dataspace_capability dataspace(char const *path)
+			{
+				/* not supported */
+				return Dataspace_capability();
+			}
+
+			void release(char const *path, Dataspace_capability ds_cap)
+			{
+				/* not supported */
+			}
+
+			bool stat(Sysio *sysio, char const *path)
+			{
+				Sysio::Stat st = { 0, 0, 0, 0, 0, 0 };
+
+				if (_is_root(path))
+					st.mode = Sysio::STAT_MODE_DIRECTORY;
+				else if (_is_null_file(path)) {
+					st.mode = Sysio::STAT_MODE_CHARDEV;
+				} else {
+					sysio->error.stat = Sysio::STAT_ERR_NO_ENTRY;
+					return false;
+				}
+
+				sysio->stat_out.st = st;
+				return true;
+			}
+
+			bool dirent(Sysio *sysio, char const *path, off_t index)
+			{
+				if (_is_root(path)) {
+					if (index == 0) {
+						sysio->dirent_out.entry.type = Sysio::DIRENT_TYPE_CHARDEV;
+						strncpy(sysio->dirent_out.entry.name,
+						        _filename(),
+						        sizeof(sysio->dirent_out.entry.name));
+					} else {
+						sysio->dirent_out.entry.type = Sysio::DIRENT_TYPE_END;
+					}
+
+					return true;
+				}
+
+				return false;
+			}
+
+			size_t num_dirent(char const *path)
+			{
+				if (_is_root(path))
+					return 1;
+				else
+					return 0;
+			}
+
+			bool is_directory(char const *path)
+			{
+				if (_is_root(path))
+					return true;
+
+				return false;
+			}
+
+			char const *leaf_path(char const *path)
+			{
+				return path;
+			}
+
+			Vfs_handle *open(Sysio *sysio, char const *path)
+			{
+				if (!_is_null_file(path)) {
+					sysio->error.open = Sysio::OPEN_ERR_UNACCESSIBLE;
+					return 0;
+				}
+
+				return new (env()->heap()) Vfs_handle(this, this, 0);
+			}
+
+			bool unlink(Sysio *sysio, char const *path)
+			{
+				/* not supported */
+				return false;
+			}
+
+			bool rename(Sysio *sysio, char const *from_path, char const *to_path)
+			{
+				/* not supported */
+				return false;
+			}
+
+			bool mkdir(Sysio *sysio, char const *path)
+			{
+				/* not supported */
+				return false;
+			}
+
+			/***************************
+			 ** File_system interface **
+			 ***************************/
+
+			char const *name() const { return "null"; }
+
+
+			/********************************
+			 ** File I/O service interface **
+			 ********************************/
+
+			bool write(Sysio *sysio, Vfs_handle *handle)
+			{
+				sysio->write_out.count = sysio->write_in.count;
+
+				return true;
+			}
+
+			bool read(Sysio *sysio, Vfs_handle *vfs_handle)
+			{
+				sysio->read_out.count = 0;
+
+				return true;
+			}
+
+			bool ftruncate(Sysio *sysio, Vfs_handle *vfs_handle) { return false; }
+	};
+}
+
+#endif /* _NOUX__NULL_FILE_SYSTEM_H_ */
diff --git a/ports/src/noux/zero_file_system.h b/ports/src/noux/zero_file_system.h
new file mode 100644
index 0000000000..5979c10e4f
--- /dev/null
+++ b/ports/src/noux/zero_file_system.h
@@ -0,0 +1,182 @@
+/*
+ * \brief  zero filesystem
+ * \author Josef Soentgen
+ * \date   2012-07-31
+ */
+
+/*
+ * Copyright (C) 2012 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+#ifndef _NOUX__ZERO_FILE_SYSTEM_H_
+#define _NOUX__ZERO_FILE_SYSTEM_H_
+
+/* Genode includes */
+#include <base/printf.h>
+#include <util/string.h>
+
+/* Noux includes */
+#include <noux_session/sysio.h>
+#include "file_system.h"
+
+
+namespace Noux {
+
+	class Zero_file_system : public File_system
+	{
+		private:
+
+			const char *_filename() { return "zero"; }
+
+			bool _is_root(const char *path)
+			{
+				return (strcmp(path, "") == 0) || (strcmp(path, "/") == 0);
+			}
+
+			bool _is_device_zero_file(const char *path)
+			{
+				return (strlen(path) == (strlen(_filename()) + 1)) &&
+					   (strcmp(&path[1], _filename()) == 0);
+			}
+
+		public:
+
+			Zero_file_system() { }
+
+
+			/*********************************
+			 ** Directory-service interface **
+			 *********************************/
+
+			Dataspace_capability dataspace(char const *path)
+			{
+				/* not supported */
+				return Dataspace_capability();
+			}
+
+			void release(char const *path, Dataspace_capability ds_cap)
+			{
+				/* not supported */
+			}
+
+			bool stat(Sysio *sysio, char const *path)
+			{
+				Sysio::Stat st = { 0, 0, 0, 0, 0, 0 };
+
+				if (_is_root(path))
+					st.mode = Sysio::STAT_MODE_DIRECTORY;
+				else if (_is_device_zero_file(path)) {
+					st.mode = Sysio::STAT_MODE_CHARDEV;
+				} else {
+					sysio->error.stat = Sysio::STAT_ERR_NO_ENTRY;
+					return false;
+				}
+
+				sysio->stat_out.st = st;
+				return true;
+			}
+
+			bool dirent(Sysio *sysio, char const *path, off_t index)
+			{
+				if (_is_root(path)) {
+					if (index == 0) {
+						sysio->dirent_out.entry.type = Sysio::DIRENT_TYPE_CHARDEV;
+						strncpy(sysio->dirent_out.entry.name,
+						        _filename(),
+						        sizeof(sysio->dirent_out.entry.name));
+					} else {
+						sysio->dirent_out.entry.type = Sysio::DIRENT_TYPE_END;
+					}
+
+					return true;
+				}
+
+				return false;
+			}
+
+			size_t num_dirent(char const *path)
+			{
+				if (_is_root(path))
+					return 1;
+				else
+					return 0;
+			}
+
+			bool is_directory(char const *path)
+			{
+				if (_is_root(path))
+					return true;
+
+				return false;
+			}
+
+			char const *leaf_path(char const *path)
+			{
+				return path;
+			}
+
+			Vfs_handle *open(Sysio *sysio, char const *path)
+			{
+				if (!_is_device_zero_file(path)) {
+					sysio->error.open = Sysio::OPEN_ERR_UNACCESSIBLE;
+					return 0;
+				}
+
+				return new (env()->heap()) Vfs_handle(this, this, 0);
+			}
+
+			bool unlink(Sysio *sysio, char const *path)
+			{
+				/* not supported */
+				return false;
+			}
+
+			bool rename(Sysio *sysio, char const *from_path, char const *to_path)
+			{
+				/* not supported */
+				return false;
+			}
+
+			bool mkdir(Sysio *sysio, char const *path)
+			{
+				/* not supported */
+				return false;
+			}
+
+			/***************************
+			 ** File_system interface **
+			 ***************************/
+
+			char const *name() const { return "zero"; }
+
+
+			/********************************
+			 ** File I/O service interface **
+			 ********************************/
+
+			bool write(Sysio *sysio, Vfs_handle *handle)
+			{
+				sysio->write_out.count = sysio->write_in.count;
+
+				return true;
+			}
+
+			bool read(Sysio *sysio, Vfs_handle *vfs_handle)
+			{
+				size_t nbytes = sysio->read_in.count;
+
+				memset(sysio->read_out.chunk, 0, nbytes);
+
+				sysio->read_out.count = nbytes;
+
+				return true;
+			}
+
+			bool ftruncate(Sysio *sysio, Vfs_handle *vfs_handle) { return false; }
+	};
+}
+
+#endif /* _NOUX__ZERO_FILE_SYSTEM_H_ */