It has been along time since I last did this:

My eMac came with four discs. I want to wipe the HD before giving the computer to my local school.

I booted using Disc 1 But can find no way to access Disk Utility to use the ERASE option. After selecting English there is no mention of UTILITIES, and everything else is greyed out until I agree to go to NEXT.

I eventually allowed the installation to go forward, thinking there might be an option to access Disk Utility along the way, but not so.

I am obviously missing something, but what? Do I need to use another of the four installation disks?

There is stuff on the HD that needs to be got rid of, so any suggestions or help will be appreciated.
Kate