Index: uspace/lib/minix/minix.h
===================================================================
--- uspace/lib/minix/minix.h	(revision e80b1de12ee23beb45cbd023915a8d7ac291c63b)
+++ uspace/lib/minix/minix.h	(revision 59e670e8468803b4f3cc0aee63300ed07844912e)
@@ -75,4 +75,7 @@
 #define MFS_MAGIC_V3R		0x5A4D
 
+#define MFS_VALID_FS		0x0001
+#define MFS_ERROR_FS		0x0002
+
 /*MFS V1/V2 superblock data on disk*/
 struct mfs_superblock {
@@ -118,5 +121,5 @@
 	int16_t		s_pad1;
 	/*Maximum file size expressed in bytes*/
-	int32_t		s_max_file_size;
+	uint32_t	s_max_file_size;
 	/*Total number of zones on the device*/
 	uint32_t	s_nzones;