Index: uspace/srv/fs/cdfs/cdfs.c
===================================================================
--- uspace/srv/fs/cdfs/cdfs.c	(revision a26895ddf444f99491f445f5813ad4b7cbf05a53)
+++ uspace/srv/fs/cdfs/cdfs.c	(revision b00255a70ff1bf87f1e8a4e2806cb362fd99721c)
@@ -52,4 +52,5 @@
 	.concurrent_read_write = false,
 	.write_retains_size = false,
+	.instance = 0,
 };
 
@@ -58,4 +59,13 @@
 	printf("%s: HelenOS cdfs file system server\n", NAME);
 	
+	if (argc == 3) {
+		if (!str_cmp(argv[1], "--instance"))
+			cdfs_vfs_info.instance = strtol(argv[2], NULL, 10);
+		else {
+			printf(NAME " Unrecognized parameters");
+			return -1;
+		}
+	}
+
 	if (!cdfs_init()) {
 		printf("%s: failed to initialize cdfs\n", NAME);