Autodesk AutoCAD 2014 for Mac can only be installed on System drive formatted with Journaled HFS+ (Mac OS Extended Journaled) file system.
http://support.apple.com/kb/HT2355
To turn journaling on and off using Disk Utility:
- Open Disk Utility (located in Applications/Utilities).
- Select the volume to enable or disable journaling on.
- To enable, click the Enable Journaling button or choose Enable Journaling from the File menu.
To disable journaling, choose Disable Journaling from the File menu. Note: In Mac OS X 10.4 and later, press Option to make Disable Journaling visible in the File menu.