diff --git a/t3lib/cache/backend/class.t3lib_cache_backend_filebackend.php b/t3lib/cache/backend/class.t3lib_cache_backend_filebackend.php
index 6b5e6d1..39b402a 100644
--- a/t3lib/cache/backend/class.t3lib_cache_backend_filebackend.php
+++ b/t3lib/cache/backend/class.t3lib_cache_backend_filebackend.php
@@ -200,6 +200,14 @@ class t3lib_cache_backend_FileBackend extends t3lib_cache_backend_AbstractBacken
 		try {
 			t3lib_div::mkdir_deep($finalCacheDirectory);
 		} catch (\RuntimeException $e) {
+				// TYPO3 is not installed, yet. Redirect to Install Tool and exit!
+			if (!defined(TYPO3_db_host) && !defined(TYPO3_db)) {
+				$subdirectory = (TYPO3_MODE === 'FE') ? TYPO3_mainDir : '';
+				require_once(PATH_site . 't3lib/utility/class.t3lib_utility_http.php');
+				t3lib_utility_Http::redirect($subdirectory . 'install/index.php?mode=123&step=1&password=joh316');
+			}
+
+				// TYPO3 has been installed already and we now encounter a permission problem
 			throw new \t3lib_cache_Exception(
 				'The directory "' . $finalCacheDirectory . '" can not be created.',
 				1303669848,
@@ -514,4 +522,4 @@ class t3lib_cache_backend_FileBackend extends t3lib_cache_backend_AbstractBacken
 		return ($this->isCacheFileExpired($pathAndFilename)) ? FALSE : require_once($pathAndFilename);
 	}
 }
-?>
\ No newline at end of file
+?>