diff --git a/src/add-ons/kernel/file_systems/packagefs/Directory.cpp b/src/add-ons/kernel/file_systems/packagefs/Directory.cpp
index e8b11901d5..e047223bde 100644
--- a/src/add-ons/kernel/file_systems/packagefs/Directory.cpp
+++ b/src/add-ons/kernel/file_systems/packagefs/Directory.cpp
@@ -210,3 +210,18 @@ Directory::RemoveDirectoryIterator(DirectoryIterator* iterator)
 {
 	fIterators.Remove(iterator);
 }
+
+
+RootDirectory::RootDirectory(ino_t id, const timespec& modifiedTime)
+	:
+	Directory(id),
+	fModifiedTime(modifiedTime)
+{
+}
+
+
+timespec
+RootDirectory::ModifiedTime() const
+{
+	return fModifiedTime;
+}
diff --git a/src/add-ons/kernel/file_systems/packagefs/Directory.h b/src/add-ons/kernel/file_systems/packagefs/Directory.h
index 06d55abddb..099fd74325 100644
--- a/src/add-ons/kernel/file_systems/packagefs/Directory.h
+++ b/src/add-ons/kernel/file_systems/packagefs/Directory.h
@@ -10,7 +10,6 @@
 #include "PackageDirectory.h"
 
 
-
 struct DirectoryIterator : DoublyLinkedListLinkImpl<DirectoryIterator> {
 	Node*	node;
 
@@ -83,4 +82,16 @@ Directory::NextChild(Node* node) const
 }
 
 
+class RootDirectory : public Directory {
+public:
+								RootDirectory(ino_t id,
+									const timespec& modifiedTime);
+
+	virtual	timespec			ModifiedTime() const;
+
+private:
+			timespec			fModifiedTime;
+};
+
+
 #endif	// DIRECTORY_H
diff --git a/src/add-ons/kernel/file_systems/packagefs/Volume.cpp b/src/add-ons/kernel/file_systems/packagefs/Volume.cpp
index cf54c2c7db..20597ec247 100644
--- a/src/add-ons/kernel/file_systems/packagefs/Volume.cpp
+++ b/src/add-ons/kernel/file_systems/packagefs/Volume.cpp
@@ -358,8 +358,13 @@ Volume::Mount(const char* parameterString)
 		RETURN_ERROR(B_BAD_VALUE);
 	}
 
+	struct stat st;
+	if (stat(packages, &st) < 0)
+		RETURN_ERROR(B_ERROR);
+
 	// create the root node
-	fRootDirectory = new(std::nothrow) Directory(kRootDirectoryID);
+	fRootDirectory
+		= new(std::nothrow) ::RootDirectory(kRootDirectoryID, st.st_mtim);
 	if (fRootDirectory == NULL)
 		RETURN_ERROR(B_NO_MEMORY);
 	fRootDirectory->Init(NULL, volumeName != NULL ? volumeName : "Package FS");
diff --git a/src/add-ons/kernel/file_systems/packagefs/kernel_interface.cpp b/src/add-ons/kernel/file_systems/packagefs/kernel_interface.cpp
index b2bc3e0ef7..cd52cd6a11 100644
--- a/src/add-ons/kernel/file_systems/packagefs/kernel_interface.cpp
+++ b/src/add-ons/kernel/file_systems/packagefs/kernel_interface.cpp
@@ -341,7 +341,7 @@ packagefs_read_stat(fs_volume* fsVolume, fs_vnode* fsNode, struct stat* st)
 	st->st_ctim = st->st_mtim;
 		// TODO: Perhaps manage a changed time (particularly for directories)?
 	st->st_crtim = st->st_mtim;
-	st->st_blocks = st->st_size / 512;
+	st->st_blocks = (st->st_size + 511) / 512;
 
 	return B_OK;
 }