I have an iBook G4 with OS X that has previous users which I would like to remove, and an Administrator whose password I do not know. I've been a PC user and am not familiar with Macs, but would like to use this great little machine.
I have no OS disk.
I've read some of the previous responses to this question, and tried to follow directions, but I can't get to the list of users, or make any password changes. When I boot to prompts, the prompt I get is Localhost:/ root#
In the list of messages, one says: "Root device is mounted read-only."
Is there a way I can change passwords?