Index [SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z] UAM (User Authentication Mechanism) 2nd UFS (UNIX File System) 2nd 3rd 4th UID (user identification) numbers Universal Access preferences configuring 2nd      panes for 2nd      troubleshooting 2nd UNIX      core of Mac OS X      file representations for command-line interface 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th      root folder      shell scripts UNIX File System (UFS) 2nd 3rd 4th Unlock Keychain dialog 2nd updating      firmware      system software 2nd Upgrade Mac OS X method      about 2nd      troubleshooting failures with upgrading Mac OS X 2nd USB (Universal Serial Bus) 2nd 3rd USB printers user accounts. 2nd [See also multiple user accounts, passwords]      creating 2nd 3rd 4th [See also multiple user accounts, passwords]      deleting 2nd 3rd [See also multiple user accounts, passwords]      encrypting home folders 2nd 3rd 4th 5th [See also multiple user accounts, passwords]      fast user switching 2nd 3rd 4th [See also multiple user accounts, passwords]      home folders for [See also multiple user accounts, passwords]      keychains for 2nd [See also multiple user accounts, passwords]      local [See also multiple user accounts, passwords]      login options for 2nd 3rd [See also multiple user accounts, passwords]      managing multiple 2nd 3rd 4th 5th [See also multiple user accounts, passwords]      mobile 2nd [See also multiple user accounts, passwords]      network 2nd 3rd [See also multiple user accounts, passwords]      preserving settings during installation [See also multiple user accounts, passwords]      restoring files for deleted 2nd [See also multiple user accounts, passwords]      running command as another user 2nd 3rd 4th [See also multiple user accounts, passwords]      security options for 2nd [See also multiple user accounts, passwords]      self test on [See also multiple user accounts, passwords]      short names for 2nd 3rd [See also multiple user accounts, passwords]      testing new 2nd [See also multiple user accounts, passwords]      troubleshooting for 2nd [See also multiple user accounts, passwords]      types of 2nd [See also multiple user accounts, passwords] User Authentication Mechanism (UAM) 2nd User Environment Setup user processes user-related problems