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Thread: Install Ubuntu with Windows 8

  1. #1
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    Install Ubuntu with Windows 8

    OK, I'm back for better or worse? I'm surprised there isn't more information on this on Google. I am dual booting Windows 7 and Windows 8 on their own partitions. I would like to add Ubuntu on a third partition. Three questions:

    My understanding is that Grub will not pick up Windows 8 and Windows 7, only Windows 8. Is this correct?

    If I select Windows 8 in Grub, will it give me the Windows 8 bootloader which includes Windows 7; and

    Is there anyway to install Ubuntu into the Windows 8 bootloader?

    I never had luck with Easybcd, but that might be an option, but would prefer not to. Also, I don't care for any kind of VM setup. Any and all info would be appreciated. Thanks guys!

  2. #2
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    Re: Install Ubuntu with Windows 8

    I don't run windows, but try here

    http://www.googlubuntu.com/results/?...ch&cof=FORID:9

  3. #3
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    Re: Install Ubuntu with Windows 8

    Quote Originally Posted by jerrrys View Post
    Thanks. I've read many of these sites. Most don't reference the Windows 8 Bootloader which is a different animal from previous versions of Windows.

  4. #4
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    Re: Install Ubuntu with Windows 8

    good luck

  5. #5
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    Re: Install Ubuntu with Windows 8

    From what I've read, the BOOTMGR used in Win8 is very different from the one used in Win7 -- which may be why that os_prober doesn't see it (if, in fact, that is the case).

    The BOOTMGR is so different, in fact, that if you choose (in a dual boot Win7 & Win8 PC) to make Win7 the default, you not only get the OLD BCD look and feel back, you can not then later get the new one back! At least, that is the way it was with Win8 DP.

    The only SAFE way to mess around with the new BOOTMGR would be to use the latest EasyBCD Beta version from NeoSmart Technologies.

    I call that SAFE because it allows you to make a backup of the existing BCD (the working one) before you make any changes. That will allow you to get a working BCD back if anything goes wrong.
    Ubuntu 14.04, Mint 17; MS Win 8.1.
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  6. #6
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    Re: Install Ubuntu with Windows 8

    I think the new boot loader is the UEFI version. But the BIOS version is similar to Windows 7. Are both Windows installs in primary partitions?

    If booting from BIOS with MBR partitioning I think this still applies.

    To get each MS to have its own boot loader make a second primary partition and set its boot flag on, then install the 2nd product in it. Multibooters, Pictures here worth 1000+ words
    http://www.multibooters.co.uk/multiboot.html
    A user who installed two windows & it worked to boot from grub directly
    http://ubuntuforums.org/showthread.php?t=1271600

    Best to Install Ubuntu and run boot_info script so we can see what it has done.

    Boot Repair:
    https://help.ubuntu.com/community/Boot-Repair
    You can repair many boot issues with this or post the link to a run of boot info script so we can see your exact configuration.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  7. #7
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    Re: Install Ubuntu with Windows 8

    Quote Originally Posted by oldfred View Post
    I think the new boot loader is the UEFI version. But the BIOS version is similar to Windows 7. Are both Windows installs in primary partitions?

    If booting from BIOS with MBR partitioning I think this still applies.

    To get each MS to have its own boot loader make a second primary partition and set its boot flag on, then install the 2nd product in it. Multibooters, Pictures here worth 1000+ words
    http://www.multibooters.co.uk/multiboot.html
    A user who installed two windows & it worked to boot from grub directly
    http://ubuntuforums.org/showthread.php?t=1271600

    Best to Install Ubuntu and run boot_info script so we can see what it has done.

    Boot Repair:
    https://help.ubuntu.com/community/Boot-Repair
    You can repair many boot issues with this or post the link to a run of boot info script so we can see your exact configuration.
    Both versions of Windows are on a Primary Partition. I think you are saying I need to use Gparted which I loathe and after formatted set the boot flag and then reinstall Windows 8. I find Gparted incredibly slow. I really would prefer not to mess around with the two installations of Windows if at all possible.

    By the way, that user used XP and 7. The previous post indicated and I have read as well that the BOOTMGR is quite different from Windows 7 and Windows 8, so the "XP" method does not work with Windows 8.
    Last edited by chazdg24; March 14th, 2012 at 07:56 PM.

  8. #8
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    Re: Install Ubuntu with Windows 8

    I have a dual boot of Windows 8 and Ubuntu 12.04 and I boot them from a headless PC (no monitor no keyboard nor mouse). I had absolutely no problem with booting, first installed Windows 8 and afterwards Ubuntu 12.04 and it worked out of the box. I first did get the grub menu and afterwards the Windows 8 menu. In your case you should be able to select Windows 7 or 8 in the second menu. In the windows 8 menu it even offered to boot Ubuntu, but that might be a left-over from a 3rd party boot manager I played with for some time to get a headless boot.

    Recently I re-installed Windows 8 the BETA, since originally I used the developer's preview. I had to put grub back in the mbr and update-grub again, but again no real problem. Everything worked as expected.

    The PC I use, is an relatively old AMD Athlon 3200+, 64 bits with 1 GB of memory and there was no problem with the BIOS.

    I had to do some other tricks to allow a headless dual boot but that is another story.
    Last edited by BertN45; March 14th, 2012 at 08:38 PM.
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  9. #9
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    Re: Install Ubuntu with Windows 8

    You should not have to reinstall. It just is Windows combines boot files into one active (boot flag) partition. The second Windows has no boot files so grub cannot directly boot it.

    Many times moving boot flag with Disk Utility or Windows command line make active and then running repairs recreates the boot files.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  10. #10
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    Re: Install Ubuntu with Windows 8

    Quote Originally Posted by oldfred View Post
    You should not have to reinstall. It just is Windows combines boot files into one active (boot flag) partition. The second Windows has no boot files so grub cannot directly boot it.

    Many times moving boot flag with Disk Utility or Windows command line make active and then running repairs recreates the boot files.
    Just to be clear, Ubuntu is not currently installed, only Win 7 and then Win 8 with Win 8's bootloader running the show. I'm determined to make this happen with Ubuntu 12.04!

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