Installing Mavericks
Are you trying to clean install OS X Mavericks? If you are, you should download a copy of Mavericks, then restore it onto a external drive, restart your mac onto that install drive, go to Utilities, then to 'Disk Utility' then erase your hard drive. Next, install Mavericks.

If you tried this step and booted with the install drive, I do not know if I can help you.