Enable or disable Access Control List support on a given file system.
Snow Leopard + Lion have ACLs enabled by default and therefore ship without fsaclctl.
After changing Access Control List support either reboot the system, or remount the file system, to make running applications aware of the change.
Syntax fsaclctl [-v] [-p -path] [-e] [-d] Options -e Enable Access Control Lists on the given file system. -d Disable Access Control Lists on the given file system. -v Display version number. -p Path to file system mount point. If no options are specified the status of Access Control List support is displayed. Example sudo fsaclctl -p /Volumes/panther -e Return Values 0 fsaclctl Successfully performed requested operation. [ENOTSUP] The filesystem does not support this operation. [EPERM] The requested operation must be performed as root.
"Politics is the art of looking for trouble, finding it, misdiagnosing it, and then misapplying the wrong remedies." - Groucho Marx
fsaclctl man page - Apple.com
chmod - Change access permissions
umount - Unmount a device
mount - Mount a file system