Ubiquity alternative?

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http://askubuntu.com – So I've decided to install Ubuntu but my CDROM was broken and I didn't have any USB so I decided to make a livecd partition on my hard drive. It was normal, I booted in the live cd, I formatted my hard drive, but when I got to the actual installation part, it said "unable to unmount /cdrom" or something similar. I unmounted it manually, but then ubiquity crashed. My question is, is there any alternative way to install ubuntu (or any other distro, I just don't want a computer without an os :D). Since I formatted my hard drive, grub is gone too and I'm stuck in this Live CD and I can't reboot. P (HowTos)