Windows 8 & Ubuntu 12.10 Dual boot issues

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http://askubuntu.com – I had recently bought a Dell Inspiron 7520 laptop , Which was pre-loaded with windows 8. I wanted to set up dual boot with Ubuntu 12.10 . I am following issues . Any help will be really appreciated . 1) I was not able to start ubutu 12.10 live CD in UEFI mode. I am not able to find any bios setting to do so . The bios firmware version , thats been loaded with the laptopn is A07. 2) As a result , I have to install ubuntu in legacy mode , which naturally does detect the windows 8 installation . After installing Ubuntu , I tried using boot-repair to convert the legacy installation to UEFI (HowTos)