Hi there, not sure if this is a bug

I'm running ubuntu 14.04. I'm trying to get the creation date on a file but it's not giving me any output. It's only giving me the following output:


root@app03:~# stat mbr
  File: ‘mbr’
  Size: 512       Blocks: 8          IO Block: 4096   regular file
Device: 801h/2049d Inode: 486199      Links: 1
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2014-08-28 16:22:18.638252610 -0700
Modify: 2014-08-28 16:19:25.602704281 -0700
Change: 2014-08-28 16:19:25.602704281 -0700
 Birth: -


My file system is EXT4.

--
Thanks,

Dach Hau