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How to reset password in single user mode in Mac OS X

To change the user password in Leopard(10.5.x) or SnowLeopard (10.6.x)


  1. Hold "Command + S" key on your mac keyboard to boot your mac into single user mode.
  2. Execute command "mount -uw /" in shell.
  3. Run below command "launchctl load /System/Library/LaunchDaemons/com.apple.DirectoryServices.plist"
  4. Execute command :  passwd
  5. change the password of root.
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