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Possible Duplicate:
Installing Ubuntu on a Pre-Installed UEFI Supported Windows 8 system

I recently purchased a new HP computer (P6-2330) with Windows 8. I have tried unsuccessfully to install Ubuntu 12.10 64bit alongside Windows 8. The computer is UEFI with Secure Boot enabled. I've tried following the instruction at https://help.ubuntu.com/community/UEFI.

I am able to get the GRUB menu to show up. However, as soon as I press Enter on either Try Ubuntu or Install Ubuntu, the screen goes blank. Nothing works at all, not even the Num Lock or Caps Lock keys on the keyboard. I have to use the power button to restart the computer. Does anyone have any suggestions on how to get Ubuntu installed?

To clarify, I have actually tried installing using both a USB stick and a DVD. The USB stick gave a blank screen, while the DVD gave the error message "Empty Security Header" after pressing Enter at the GRUB screen.

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  • Have you tried to disable the Secure Boot in the BIOS ?
    – LovinBuntu
    Nov 9, 2012 at 12:20
  • Oh yeah. The Ubuntu DVD/USB stick won't boot past GRUB at all unless it's in what my UEFI Configuration program calls "Legacy" mode!
    – rft183
    Nov 9, 2012 at 15:03
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    Your problem may not be due to SecureBoot, but to graphical problems. Please tell me if you can access the Advanced Welcome Page. If yes, please try to add the nomodeset option as explained here.
    – LovinBuntu
    Nov 13, 2012 at 11:33
  • I ended up reinstalling Windows 8 in BIOS mode so that I could install Ubuntu in BIOS mode as well. My understanding was that in UEFI mode, Ubuntu went straight to text grub rather than Advanced Welcome Page. Mine did, anyway. I did try the nomodeset option, which didn't help. I can't really try anything else now though, since I've got everything working in BIOS mode. Thank you for trying to help!
    – rft183
    Nov 15, 2012 at 22:13

3 Answers 3

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@ Athelstan - this is the solution that many other threads were missing. Unfortunately, I found this thread after a few hours of tweaking it on my own :)...

Allowing for legacy USB and reordering the boot order was not enough to install 12.04 cleanly. Many people have been reporting the "missing file" error or the inability to get past the black screens. At one point, I could chose the boot disk, but it wouldn't allow it.

Moral of the Story: Win8 is a beast and the hardware setting reflect this. Setting "Secure Boot Control" to DISABLED and tweaking the UEFI settings allowed for me to seamlessly install 12.04 on a new laptop with Win8.

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I'm not thrilled with this solution, but it has worked. I paid an extra Microsoft tax of $40 to upgrade my Windows 8 to Windows 8... Then I reconfigured my UEFI settings so that I could do everything in BIOS mode. I reformatted my hard drive using gparted so that it was in msdos style instead of gpt. I then clean installed Windows 8. Since it was an upgrade disk, I had to "upgrade" the freshly installed Windows 8 with Windows 8. I was then able to install Ubuntu. Ugh. I hope this mess is straightened out soon.

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I found in my bios a setting called "Secure Boot Control". I set it to disabled and now can boot into Ubuntu and Windows 8 with no issues.

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    I tried pretty much every setting there was in bios (there aren't that many on my computer btw...) including disabling Secure Boot. Still didn't help. I did get Ubuntu and Windows installed though, as you can see from my "answer."
    – rft183
    Nov 15, 2012 at 22:16

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