Index: uspace/srv/fs/fat/fat_ops.c
===================================================================
--- uspace/srv/fs/fat/fat_ops.c	(revision 6284978581040c06c173f1990897a36fe2cd2cb2)
+++ uspace/srv/fs/fat/fat_ops.c	(revision f1ba5d62689ce8c511830ed97b4cd78ee2ea8b24)
@@ -462,4 +462,12 @@
 	}
 
+	/* Initialize the block cache */
+	rc = block_cache_init(dev_handle, bps, 0 /* XXX */);
+	if (rc != EOK) {
+		block_fini(dev_handle);
+		ipc_answer_0(rid, rc);
+		return;
+	}
+
 	rc = fat_idx_init_by_dev_handle(dev_handle);
 	if (rc != EOK) {