Boot your unetbootin device, which is basically a live USB/CD/DVD, and log in as root. Start a terminal (command line) window and execute the command "fdisk /dev/sda". This should put you into the fdisk (disc partitioning utility). Delete the Linux partitions, quit (it will save the new partition table, and then run the install tool.
rubberman
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Is it just the installation DVD, or is it a live DVD? I assume you burned it to a physical disc (DVD)?
rubberman
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Ah. Well, unetbootin will create a live USB thumb drive from the iso, but as far as I know, you can't just use it to install the system. Of course, I haven't used unetbootin in almost a year, so it may have changed. What OS were you running it from?
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