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I bought a new Sony Vaio E14P series laptop. It has pre-installed Windows 8, and I want to dual boot it with Ubuntu 12.10 64-bit. I have disabled secure boot and installed Ubuntu without any problem from live USB.

When I reboot after installation, it directly boots to Windows 8 and doesn't load GRUB at all. So I went to live USB again to boot-repair. It stuck at the "Reinstall GRUB" step. I've waited for hours but nothing happened.

Here is my boot info:

There are no fastboot options in BIOS nad UEFI is still enabled (because Windows 8 installed in UEFI I guess).

Thanks. :)

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What key do you press to boot into the live USB? I mean if you press F11 repeatedly at boot time until the Vaio logo disappears do you see an Ubuntu entry for your installation, next to the Windows entries? If the Ubuntu installer didn't save it in nvram maybe the Windows repair can detect it in your EFI partition and make an entry for it in nvram. – Mike C. Mar 20 '13 at 15:58
I shutdown first, and then use ASSIST key (function to show options like bios menu, boot usb, recover, etc). How i suppose to use Windows repair? – Joni Mar 20 '13 at 22:03
Yeah, you don't see any entry for your Ubuntu install in the bios boot menu? Normally when installing under efi the installer would create an entry in nvram that would show up here in the bios boot menu. From linux you could use efibootmgr to create entries in nvram. Luis' answer down here details a lot more, and the Windows repair I was mentioning would be Automatic Repair in his third screenshot. – Mike C. Mar 20 '13 at 22:24
In the same thread Richard points in his answer to an article where you can find how to create an EFI Ubuntu entry from within Windows, using EasyBCD, this parts starts at #13 on the second page in the article. – Mike C. Mar 20 '13 at 22:42
okay i'll try later when i got touch my laptop – Joni Mar 21 '13 at 1:52

I make no promises, but you might be able to get it to work by installing rEFInd from within Windows. (The documentation includes Windows installation instructions.) If this is successful, a basic installation from Windows will cause rEFInd to launch when you start, and you'll then be able to boot either Windows or GRUB, which will then boot Linux. This should work fine; or you can tweak the installation to boot Linux directly, bypassing GRUB.

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i'll try this one if other method fails..i dont have windows 8 installer so i need to find this document – Joni Mar 21 '13 at 1:53
i have tried it and it still not work. instead entering rEFInd boot manager, it directly boot to windows 8. and I have turn off fastboot option – Joni Mar 22 '13 at 4:09

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