Chosen Solution
Hi I’m not sure if I can reset the password on this Mac mini. I think I know the master password so I think I can get in.
Try this:
• Power on or restart your Mac.
• At the chime (or grey screen if your chime is turned off), hold down Command+S on your keyboard to enter single-user mode.
• Type “sh /etc/rc” and press Enter/Return.
• Type “passwd
Boot from your original system installation disk. Go to the second page of the install when the pull down menu appears. Go to Utilities > Change Password and do it. This utility can also be found on the 10.5 retail DVD.