I'm trying to dual boot Win8 and Ubuntu but don't see the option to choose the operating system I want

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http://askubuntu.com – I have a new HP laptop with Windows 8 pre-installed. To try Linux I downloaded Ubuntu 64 bit and burned it to a DVD. The install seemed successful but I didn't get the option to boot into Ubuntu or Windows, just straight to Windows. I tried a variety of things to get the dual-boot option: I tried the repair disc method by heading into "try Ubuntu" from the disc and typing a few commands from the terminal. That seemed to work fine within Ubuntu but to no avail after a reboot. I tried downloading a program called EasyBCD 2.2 and while this brought up the windows boot manager on restart (HowTos)