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I have Asus ux31a with Windows 8 preinstalled, UEFI of course. I have tried to install Ubuntu 13.04 and dual-boot it with Windows 8. Finally I managed to install Ubuntu by disabling Fast boot and Secure boot but the dual-booting was failing so I formatted with Windows D: in which I had Ubuntu installed. Later I tried to install Ubuntu again, Fast boot and Secure boot disabled. When I tried to install it, all I could get was a black screen so I turned the computer off and on again. Now my computer is saying:

error: unknown filesystem
grub rescue>

Nothing happens when trying to boot from liveUSB. I have tried this:

grub rescue> set root=(hd0,0)
grub rescue>set prefix=(hd0,0)/boot/grub
grub rescue>insmod normal

with hd0,0-6 but all I get is

error: no such partition

I guess it's because Ubuntu isn't existing anymore in my computer? What can I do? I'd be happy to get both Windows 8 and Ubuntu 13.04.

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Try hd1, the disk numbering is somewhat random these days, with hd0 no longer being the hard disk every time. –  ubfan1 Jun 10 '13 at 16:58
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@ubfan1, bios vendors always make hd0 the disk being booted from, since dos/windows is incapable of booting from another disk. –  psusi Jun 10 '13 at 17:55
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"all I could get was a black screen" is too vague to be helpful. You will need to be more specific about what happens when you try to install. –  psusi Jun 10 '13 at 17:56
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Try using Boot Repair, and if it doesn't work then please post the boot repair URL. help.ubuntu.com/community/Boot-Repair –  DaboRoss Jun 11 '13 at 6:11
    
Did you run the live usb or cd? did it works well? If yes I will try to help you in next steps.. –  Pascal Fares Dec 17 '13 at 14:31
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protected by Community Dec 17 '13 at 14:41

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