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I've tried installing Ubuntu several times as a standalone OS on my Toshiba Portege z935 which has a UEFI Bios and came pre-installed with windows 8 and it does not work. Is it really only possible to dual boot with Windows 8?

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  • Yes is it possible. You said you previous attempts at installing failed. What happened exactly?
    – user271219
    Oct 31, 2014 at 4:05
  • I would install Ubuntu and it would be successful. However after restarting it wouldn't boot. My hard drive was basically not being recognized. Oct 31, 2014 at 4:08
  • GRUB. What method did you use to install. Something Else?
    – user271219
    Oct 31, 2014 at 4:11
  • I just booted the live USB and installed the distribution to my hard disk following the prompts. Oct 31, 2014 at 4:12
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    I'm sorry haha, I was waiting for you. And Yes. Windows 8 is already removed. The hard drive is empty. Oct 31, 2014 at 4:43

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Fedora and Windows install a file called \EFI\BOOT\BOOTx64.EFI (x64 is the architecture and can be something like ARM too) in the EFI System Partition (ESP) which allows to boot an application or operating system when the NVRAM entries (storage on the mainboard) to boot a certain OS are not available or missing. Ubuntu currently doesn't provide such a file, which results in a non-bootable installation in these cases.

You can follow these instructions which install and configure Gummiboot for such scenarios. You can even configure this for secure boot. I already filed a bug, but it doesn't seem to get taken seriously.

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