Change password on iMAC without the installation CD

October 2017

Change password on iMAC without the installation CD


I have iMAC G5 and I need to change the admin. password. The problem is that I don't have the installation CD and I don't know the old password.


You can try this:

But, it will create a new account and your old files will still not be accessible.

Creating a new Admin on Mac Os X:
Here's how to reset your OS X password without an OS X CD.
the Working solution for me was to create a new admin
you can create new admin like this by deleting a specific file.

You need to enter terminal and create a new admin account:
  • Reboot
  • Hold Apple key + S key down after you hear the chime. (Command + S on newer Macs)
  • When you get text prompt enter in these terminal commands to create a brand new admin account (hitting return after each line):
    • mount -uw / 
    • rm /var/db/.AppleSetupDone 
    • shutdown -h now 
  • After rebooting you should have a brand new admin account. When you login as the new admin you can simply delete the old one and your good to go again!
Published by aakai1056. Latest update on March 19, 2014 at 05:40 AM by Ambucias.
This document, titled "Change password on iMAC without the installation CD," is available under the Creative Commons license. Any copy, reuse, or modification of the content should be sufficiently credited to CCM (