diff --git a/src/kernel/boot/platform/openfirmware/Handle.cpp b/src/kernel/boot/platform/openfirmware/Handle.cpp
index 21584f6227..95d863a21a 100644
--- a/src/kernel/boot/platform/openfirmware/Handle.cpp
+++ b/src/kernel/boot/platform/openfirmware/Handle.cpp
@@ -62,3 +62,12 @@ Handle::WriteAt(void *cookie, off_t pos, const void *buffer, size_t bufferSize)
 	return B_ERROR;
 }
 
+
+off_t 
+Handle::Size() const
+{
+	// ToDo: fix this!
+	return 1024LL * 1024 * 1024 * 1024;
+		// 1024 GB
+}
+
diff --git a/src/kernel/boot/platform/openfirmware/Handle.h b/src/kernel/boot/platform/openfirmware/Handle.h
index 99df56c467..33abf384d8 100644
--- a/src/kernel/boot/platform/openfirmware/Handle.h
+++ b/src/kernel/boot/platform/openfirmware/Handle.h
@@ -22,6 +22,8 @@ class Handle : public ConsoleNode {
 		virtual ssize_t ReadAt(void *cookie, off_t pos, void *buffer, size_t bufferSize);
 		virtual ssize_t WriteAt(void *cookie, off_t pos, const void *buffer, size_t bufferSize);
 
+		virtual off_t Size() const;
+
 	protected:
 		int		fHandle;
 		bool	fOwnHandle;