Hi everyone,

I have created a working bootable usb drive (verified on a different laptop) with Ubuntu 14.04 64bit. When I try to boot it on my Gigabyte S1082 Slate I get a red Secure Boot violation error. But my Aptio Setup Utility 2.15.1229. will not let me disable secure boot. It's greyed out.

So what could I do about that? Is there any chance I could get Ubuntu to work without disabling secure boot? Or am I missing something in my BIOS?

The only thing that is not greyed out under the security tab is 'Delete all Secure Boot variables' but that doesn't sound like a good idea to me.

Thanks for your help

Really? Try looking to disable UEFI boot entirely, and see if that works?

It might be helpful if you could take a pic or two of your UEFI options and the error and attach it.

Thanks for your reply, maples.

I took photos of every BIOS tab I have except save & exit and of the error.

Disabling UEFI boot altogether sounds promising but unfortunately I have absolutely no idea how to do that. (All the tutorials I checked require disabling secure boot)

When I press enter after the error appears the machine normally boots to Windows 8.

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Ther rest of the images:

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My best guess would be to look at the two "Boot Option" entries under the "Boot" tab. I would look for something similar to "no OS verification."

If there isn't anything like that, my next thought would be to change the "OS Type" under the "Boot" tab. One of the options should be similar to "Legacy BIOS." If you use that option, it will boot like a non-UEFI computer.

I hope this helps!

Yeah, I tried that too. Under the boot options entries I can choose

Windows Boot Manager (long string of numbers and letters)

UEFI: Spaceloop 4GB 8.07 (My bootable USB)

Disabled

Selecting disabled would leave me with no boot order, so that propably would not work.

Under OS Type I can select:

UEFI OS

That's it. That's why I started this thread. :/

This might be why it is greyed out.
according to this http://technet.microsoft.com/en-us/l.../dn481258.aspx

I looked at that too, I am running the normal non-RT Windows 8; it has the desktop and the ability to run old windows applications. But you might be right because it says that they rquire all RT machines to have 'locked' Secure Boot which does not mean that all non-RT machines are 'unlocked'. While most are, mine might not be 'unlocked'.

So, assuming that I can't get rid of Secure Boot, is there any way to get Ubuntu (or any other Linux distribution) running?

I'm rather concerned by Microsofts activities for any future PC.

Is the procedure outlined in http://www.theregister.co.uk/2013/02...fi_workaround/ useful?

I'm concerned too.

It sure sounds good. I'll definately give that a shot, thanks!