I tried that, but it doesn't give me an option to delete. I tried booting the computer up from the disk and then it gives me the option to delete and re:format.. but there are no partitions showing at all.
I think I need to be able to do this from the command prompt, before I even try the upgrade?! Is there some way to find out the volume label for a drive so I can try to get past that question on my command prompt and hopefully work my way through the rest of the instructions I have (force a dismount, and schedule a drive)
Thanks!