I have tried 12.04 and 13.04 and neither one creates a bootable disk. I already have 64 bit Ubuntu but need 32 bit for a specific program that I need to run. I have tried Startup Disk Creator on Ubuntu, and tried several methods on OS X but none of them create a disl that will show in the boot options. I tried Penguintosh and that got it to show up and it booted as far as the starting kernel message but then it hung there for hours. I have tried redownloading, and as I said multiple methods of creating the boot disk. I've been trying to make this live usb for almost a week now lol. I don't have CD's. Any suggestions?