#208492 report and testing by KarenS, patch by myself: book upgrade should not use the book API

modules/book/book.install

@@ -214,7 +214,7 @@ function book_update_6000() {
         'module' => 'book',
         'link_path' => 'node/'. $book['nid'],
         'router_path' => 'node/%',
-        'menu_name' => book_menu_name($book['bid']),
+        'menu_name' => 'book-toc-'. $book['bid'],
       );
       $book = array_merge($book, db_fetch_array(db_query("SELECT title AS link_title FROM {node} WHERE nid = %d", $book['nid'])));