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I've been trying to install Ubuntu 12.04 as secondary OS on my laptop. The primary OS I have is Windows 8.

So I have partitioned drive where NTFS is for Windows 8 and other partition is EXT4 for Ubuntu.

When I installed Ubuntu I picked the EXT4 partition and picked 3 boot loader options so far:

/dev/sta ATA HITACHI (750 GB) <-= this...
/dev/sta1 Windows 8 (loader) <-= and this...
/dev/sta2
/dev/sta5
/dev/sta6 Ubuntu 12.04 (12.04) <-= and this...
/dev/stb

After like 3 installations I still can't boot Ubuntu, nor can even see any boot loader... It goes straight to Windows 8 booting...

Please help! This has been very frustrating day and a half... And I don't think it should take that long to figure out =[

ANSWER: I could not find a proper solution for my problem. I'm not sure if I encountered some drive corruption, or program glitch, the only solution that fixed my problem was to make drive back-up and completely re-partition my hard-drive. Please post if anyone encounter similar problem. As I really would like to know why my drive failed to install Ubuntu on my drive.

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The first one on the list should work.. Was there no effect at all? –  Karthik T Nov 20 '12 at 6:42
    
No effect what so ever. –  HelpNeeder Nov 20 '12 at 7:26
    
was your problem solved ? –  Mevin Babu Dec 20 '12 at 3:40
    
Yes and no, I had to repartition my hard drive. I couldn't didn't find any other cause of this but partition table. –  HelpNeeder Dec 20 '12 at 3:42
    
Please boot with Ubuntu Live CD and post the output of sudo parted /dev/sda print (or sta?). At least Windows 7 Boot Manager will boot only primary partitions technet article. –  Eero Aaltonen Dec 12 '13 at 14:31

2 Answers 2

up vote 2 down vote accepted

How about you use /dev/sta6 for the grub bootloader. Next steps:

  • Run update-grub to write the ubuntu bootsector
  • Copy the ubuntu bootsector into a file: dd if=/dev/sta6 of=boot.lnx bs=512 count=1
  • Transfer the file to the windows loader partition /dev/sta1, either by copying or via USB stick and booting to windows.

Then use these commands in windows shell to add a Linux selection to the windows loader:

bcdedit /create /d “Linux” /application BOOTSECTOR

BCDEdit will return an alphanumeric identifier for this entry that I will refer to as {ID} in the remaining steps. You’ll need to replace {ID} by the actual returned identifier. An example of {ID} is {d7294d4e-9837-11de-99ac-f3f3a79e3e93}. Next, let’s specify which partition hosts a copy of the boot.lnx file:

bcdedit /set {ID} device partition=c:
bcdedit /set {ID}  path \boot.lnx
bcdedit /displayorder {ID} /addlast
bcdedit /timeout 30

http://www.iceflatline.com/2009/09/how-to-dual-boot-windows-7-and-linux-using-bcdedit/

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Make sure your Windows 8 is not 64-bit with the UEFI boot type, if it is pre-installed then it mean yes. If you run dxdiag and it says Windows 8 64-bit then it mean yes. If one or both are true then the basic thing you need is an ISO of Ubuntu 64-bit for installation, the rest goes here:

Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported)

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No, I had Windows 7 reinstalled, then formatted drive and installed Windows 8, Both 64-bit, and also Ubuntu was 64-bit. The link you provided was not helping as I didn't have any problems while booting, but to install the OS. –  HelpNeeder Dec 12 '13 at 14:00
    
It means your Windows boot with ordinary EFI with MBR disk ? –  Tommy Aria Pradana Dec 12 '13 at 14:06
    
MBR, I assume.. –  HelpNeeder Dec 12 '13 at 22:35
    
You formatted the whole drive ? it means you cleared all partition then installed Windows 8 64-bit ? if yes,it means Windows 8 automatically turn your disk to GPT –  Tommy Aria Pradana Dec 13 '13 at 11:29
    
I originally had 7, then installed 8, then formatted to get Ubuntu on it. I don't know the details of what partitioning table they all use :P I i believe you're statement is mostly correct. –  HelpNeeder Dec 13 '13 at 23:58

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