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Thread: How to boot Ubuntu from EFI?

  1. #1
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    How to boot Ubuntu from EFI?

    I have just tried installing Ubuntu 11.10 on a newly bought Lenovo ThinkCentre Edge with EFI boot enabled. The machine came preloaded with Windows 7. I first opted to install Ubuntu 11.10 side-by-side with Win 7. Installation of Ubuntu finished with success, however, when I rebooted, it kept booting Windows. I could not make it boot Ubuntu.

    I then reinstalled Ubuntu 11.10. This time I opted for the Use Entire Disk option and thus wiped Windows 7 from the machine. Hoping this would work, I was surprised to see that it still did not work. Even though the installation process went without any problems/errors, when rebooting it now just gives me "No bootable operating system. Insert bootable disk and press any key..."

    I figure this is because of EFI. I have checked the System Setup (F1 during POST) to find a BIOS option to disable EFI/UEFI boot, however, there is no such option for this machine.

    So my question is, how do I install Ubuntu on a machine with EFI?
    - Or, since Ubuntu is probably already installed: how do I make it boot Ubuntu?


    *EDIT 2012-01-02*:
    I went and bought a CDROM and installed Ubuntu from it. That made it work. Appearently, the Ubuntu ISO is broken in such a way that installation from USB does not work on (at least some) EFI systems.
    Last edited by tdn; January 2nd, 2012 at 09:00 AM. Reason: Added solution.

  2. #2
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    Re: How to boot Ubuntu from EFI?

    You need to disable secure boot in the BIOS, if that is possible.
    You may need to enter a special BIOS code to get to it.
    If you cannot disable it, then you can't install anything but Win7.
    This might help.
    https://help.ubuntu.com/community/UEFIBooting
    Last edited by wyliecoyoteuk; December 29th, 2011 at 02:18 PM.
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  3. #3
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    Re: How to boot Ubuntu from EFI?

    Quote Originally Posted by wyliecoyoteuk View Post
    You need to disable secure boot in the BIOS, if that is possible.
    You may need to enter a special BIOS code to get to it.
    If you cannot disable it, then you can't install anything but Win7.
    This might help.
    https://help.ubuntu.com/community/UEFIBooting

    WTF? Are you serious? I cannot use this computer with anything but Win 7? I find it hard to believe this that this practice is legal.

    I just checked the BIOS settings. There is nothing about Secure Boot. Where can I find out about "a special BIOS code" disable this setting?

  4. #4
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    Re: How to boot Ubuntu from EFI?

    Update:
    So I called the hardware vendor to ask for help on this issue. They do not know of any such "secure boot" setting in the BIOS that would prevent Linux from booting.
    They suggested that I called Lenovo support, and I did. At Lenovo support they did not know anything about a BIOS setting called secure boot. The also did not know of any limitations that would prevent Linux from booting.

    I asked for the BIOS manual, and the provided this:
    http://download.lenovo.com/lenovo/co...ebsupport.html

    Steps to get to BIOS manual:
    - Go to http://lenovo.com/websupport
    - Click ThinkCentre / ThinkPad
    - Click Denmark on the Europe country list
    - Click Quick Find and supply the model number: 1577-G3G
    This will give you the support page for ThinkCentre Edge 71 (1577-G3G).
    - At the right side of the page, click "Hardware Maintenance Manuals" in the section "Guides and Manuals".
    - Here you will find BIOS manual.


    I did this.
    The BIOS manual does not mention EFI, UEFI nor secure boot.

  5. #5
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    Re: How to boot Ubuntu from EFI?

    Did you install with a USB? I've heard it's GRUB installation doesn't work.

  6. #6
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    Re: How to boot Ubuntu from EFI?

    Check out the UEFI page on the Ubuntu wiki, tons of info there, although much of it seems Mac-specific.

    https://help.ubuntu.com/community/UEFIBooting

  7. #7
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    Re: How to boot Ubuntu from EFI?

    Quote Originally Posted by Mars11 View Post
    Did you install with a USB? I've heard it's GRUB installation doesn't work.


    I did install via USB. I followed the official steps from ubuntu.com. Why would that not work? Is there a bug report on this?

  8. #8
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    Re: How to boot Ubuntu from EFI?

    Quote Originally Posted by Paqman View Post
    Check out the UEFI page on the Ubuntu wiki, tons of info there, although much of it seems Mac-specific.

    https://help.ubuntu.com/community/UEFIBooting
    Thanks. I already read that. I could not find anything helpful there. You're right, it has tons of information. Maybe I just missed the important bits. Care to point me to the section that is relevant for this problem?

  9. #9
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    Re: How to boot Ubuntu from EFI?

    Quote Originally Posted by wyliecoyoteuk View Post
    You need to disable secure boot in the BIOS, if that is possible.
    You may need to enter a special BIOS code to get to it.
    Rubbish. "Secure Boot" is a planned feature of a future version of Windows that would force OEMs to provide EFI that would only boot a "signed" OS. It's not actually implemented on any systems, and it's not known what form it will take if/when it does.

  10. #10
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    Re: How to boot Ubuntu from EFI?

    If you have an extra CD lying around try that, or follow this guide to install GRUB.

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