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I just installed ubuntu 12.10 64bit on my hp probook 4540s windows 8 laptop, After installation I cant boot into ubuntu, the system boots directly into my windows.

Here are my installtion settings...

  1. I turned off Fast Boot on Windows 8
  2. I turned off Secure Boot
  3. I changed from UEFI Mode to Legacy Mode(because ubuntu was not installing from a liveusb when uefi is on).
  4. I created three partitions, one for swap, one for / root partition, and one for /home partition.

After installation, I installed boot-repair and run a boot-repair on the system.

After the boot-repair process, I changed back to uefi mode and it boots directly into windows.

I tried using BCD but it was only seeing the windows bootloader and no ubuntu.

Please how do I make this work..

Korede Lawrence Oluwafemi
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2 Answers2

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Do you mean 13.10? If so I recommend you edit your question. Otherwise I would try using 13.10, 12.10 was the first ubuntu to support UEFI so I imagine they have improved support a lot since then.

Anake
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  • I meant 12.10 64bit, and also are you saying I should use 13.10 instead – Korede Lawrence Oluwafemi Mar 26 '14 at 17:39
  • Ok. Yes I think you should use 13.10. – Anake Mar 26 '14 at 21:13
  • Ubuntu supported EFI long before 12.10. I think you're thinking of Secure Boot support, which did indeed debut with 12.10. That said, using a more recent version is certainly in order. 12.10 is no longer supported, and EFI support has improved with every recent release. – Rod Smith Mar 27 '14 at 00:32
  • You are right @Rod Smith, 13.10 offers better support for uefi system because I just tried installing it now and it's not throwing any error EXCEPT that id does not detect my windows 8 OS. I had to stop to ask questions first if this is normal, if i should install the 13.10 in my ext4 partitions, will it affect my windows 8 OS? I will appreciate your help on this.. Thanks. – Korede Lawrence Oluwafemi Mar 27 '14 at 09:26
  • @Anake, yes you right 13.10 works but it does not detect any OS(my windows 8), should I go ahead with the installation or have I missed any part... – Korede Lawrence Oluwafemi Mar 27 '14 at 09:27
  • If you boot into ubuntu, get up a terminal and enter "sudo update-grub", that should detect windows and when you restart it should be there as an option – Anake Mar 27 '14 at 13:23
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Do not try to install in BIOS/CSM/legacy mode when the computer is already booting another computer in EFI/UEFI mode. You might clear an initial hurdle relatively easily this way, but you'll be setting yourself up for bigger problems down the road, as you've discovered. It's usually possible to get the installer working in EFI/UEFI mode. On rare occasion, a BIOS/CSM/legacy-mode install may be required, but this is an option of last resort.

Unfortunately, the possible causes for your initial problem are numerous, so I can't provide you with a simple procedure to overcome your problem. I do strongly recommend using a more recent version of Ubuntu, though. Also, read at least one, and preferably all three, of the following pages:

Rod Smith
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  • You are right @Rod Smith, 13.10 offers better support for uefi system because I just tried installing it now and it's not throwing any error EXCEPT that id does not detect my windows 8 OS. I had to stop to ask questions first if this is normal, if i should install the 13.10 in my ext4 partitions, will it affect my windows 8 OS? I will appreciate your help on this.. Thanks. – Korede Lawrence Oluwafemi Mar 27 '14 at 09:24
  • First, boot into Windows and disable Fast Startup. I make no promises that this will help. If it doesn't, you'll have to use the "Something Else" installation option and partition the disk manually. – Rod Smith Mar 27 '14 at 12:08
  • If i do that, will the Ubuntu detect my windows 8 OS – Korede Lawrence Oluwafemi Mar 27 '14 at 12:10
  • "Detect my Windows 8 OS" is vague. Most people mean that the installer identifies Windows and offers an option to install Ubuntu alongside Windows. My hope is that disabling Fast Startup will enable this to work (among other things), but if that fails, the "Something Else" installation option works around the problem by enabling you to apply your brain to a problem that's too big for the rather stupid Ubuntu installer (namely, identifying and resizing the Windows partition). (Note I'm not dissing the Ubuntu installer; all computer programs are stupid, compared to the average human.) – Rod Smith Mar 27 '14 at 12:16