fsaclctl

Enable or disable Access Control List support on a given file system.
After changing Access Control List support either reboot the system, or remount the file system, to make running applications aware of the change.
ACL's are a new feature in Tiger and still have some rough edges!

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

Related commands:

chmod
umount
ls
mount