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Thread: Installing unbuntu on to virtualbox

  1. #1
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    Nov 2013
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    Installing unbuntu on to virtualbox

    I have installed Virtualbox and installed unbent 13.10 on my Macbook Pro 9,1. I have opened virtual box and ran unbent and receive the following message.

    "This kernel requires an x86-64 CPU, but only detected an i686 CPU.
    Unable to boot - please use a kernel appropriate to your CPU."

    Can anyone advise how i fix this and provide any links if I have installed the incorrect version for 9,1

    Cheers



  2. #2
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    Xubuntu

    Re: Installing unbuntu on to virtualbox

    Welcome. Incorrect version. You need the 32bit version. You are trying to run the 64bit.

    To clarify: you have Virtualbox installed on the Mac OS and have Ubuntu 13.10 running as a virtual machine?

    * Update: That's a modern machine with quad-core, yea?
    Last edited by Bucky Ball; December 8th, 2013 at 06:50 PM.

  3. #3
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    Re: Installing unbuntu on to virtualbox

    Bucky, correct, I will install the 32bit version and see how I go, many thanks for the quick response.

  4. #4
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    Kubuntu 14.04 Trusty Tahr

    Re: Installing unbuntu on to virtualbox

    i don't know about macs, but PC have a setting in bios that will enable 64 bit OS in virtualbox (hardware virtualisation- amd-v or VT-x). read more about this here:http://en.wikipedia.org/wiki/X86_virtualization
    Easy to understand Ubuntu manual with lots of pics: http://ubuntu-manual.org/
    Do i need antivirus/firewall in linux?
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  5. #5
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    Ubuntu Development Release

    Re: Installing unbuntu on to virtualbox

    Quote Originally Posted by brian.farr View Post
    I have installed Virtualbox and installed unbent 13.10 on my Macbook Pro 9,1. I have opened virtual box and ran unbent and receive the following message.

    "This kernel requires an x86-64 CPU, but only detected an i686 CPU.
    Unable to boot - please use a kernel appropriate to your CPU."

    Can anyone advise how i fix this and provide any links if I have installed the incorrect version for 9,1

    Cheers


    When going through the new machine wizard, make sure Ubuntu (64bit) is selected

    Also, make sure you have the firmware for VT-X installed http://support.apple.com/kb/TS2744
    Ubuntu Forums Moderation Staff
    Don't waste your energy trying to change opinions ... Do your thing, and don't care if they like it.

  6. #6
    Join Date
    Jul 2011
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    Ubuntu

    Re: Installing unbuntu on to virtualbox

    I had a similar problem, and as sandyd said:

    When going through the new machine wizard, make sure Ubuntu (64bit) is selected
    This could be changed later from Machine settings under: General-> Basic -> Version.
    also you might need to un-check/check the "Enable EFI" option under: System -> Motherboard.
    Last edited by asus-user; December 8th, 2013 at 07:47 PM. Reason: Correcting a name from sanyd to sandyd.

  7. #7
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    Re: Installing unbuntu on to virtualbox

    Quote Originally Posted by brian.farr View Post
    Bucky, correct, I will install the 32bit version and see how I go, many thanks for the quick response.
    There is another reason why 32 bit makes perfect sense in a virtual environment: the memory allocated tends to be less than 4GB (I typically run Ubuntu with GUI in 1 GB) and then the 32 bit version is actually better. Smaller programs, to name an advantage.

  8. #8
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    Nov 2013
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    Re: Installing unbuntu on to virtualbox

    Thanks guys, installed the 32 bit program. It seems to be working now although some of your advice went way over my head regarding VTX and EFI. Pretty new to me to be honest.
    Bucky quad-core, I assume you mean processor? In answer to your question, no idea, how do I find this out?

  9. #9
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    Ubuntu Gnome Development Release

    Re: Installing unbuntu on to virtualbox

    Quote Originally Posted by brian.farr View Post
    I have installed Virtualbox and installed unbent 13.10 on my Macbook Pro 9,1. I have opened virtual box and ran unbent and receive the following message.

    "This kernel requires an x86-64 CPU, but only detected an i686 CPU.
    Unable to boot - please use a kernel appropriate to your CPU."

    Can anyone advise how i fix this and provide any links if I have installed the incorrect version for 9,1

    Cheers


    Hello and Welcome

    You are lucky, I just had this very issue today and the fix, in my case, was very much easy:

    Rebooted my laptop
    Entered BIOS
    Enabled Virtualization
    Saving
    Exit

    Login to my system
    Open VirtualBox
    Choose Ubuntu 64bit
    Try again

    Let us know if that solved your issue

    P.S.
    I have a Laptop, Not Mac!

  10. #10
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    Ubuntu Gnome Development Release

    Re: Installing unbuntu on to virtualbox

    Quote Originally Posted by sandyd View Post
    When going through the new machine wizard, make sure Ubuntu (64bit) is selected
    If Virtualization is 'not' enabled from BIOS, you will not find 64bit listed - just happened with me today

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