** Checking catalog file.
Invalid node structure
(4,15)
** The volume Mac OS could not be verified completely.
Wed Dec 23 09:27:33 2015 localhost com.apple.xpc.lauchd[1] <Emergency>: Boot task failed:fsck-safe
Wed Dec 23 09:27:33 2015 localhost com.apple.xpc.lauchd[1] <Emergency>: Shutting down in 3 seconds.
