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Thread: Windows 8 Is Not in my Grub

  1. #1
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    Feb 2011
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    Windows 8 Is Not in my Grub

    I have Windows 8 CP installed on my laptop as well as Ubuntu, but Windows 8 will not appear in my Grub menu, meaning I cannot boot from it.

    I tried updating my Grub, and doing a Boot Repair, but it did not work.

    How could I add it to my Grub in Ubuntu?

    I'll add more information if you request it.

  2. #2
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    Jan 2007
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    Re: Windows 8 Is Not in my Grub

    So you have run "sudo update-grub" and also clicked the "Recommended repair" button in the Boot Repair app?

    If so, the next step is to run the boot info script from Boot Repair and either post the link or the contents of the file it generates. It will provide us with details of your system's boot files as well as what Boot Repair has already tried to do.
    GRUB2

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  3. #3
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    Re: Windows 8 Is Not in my Grub

    Quote Originally Posted by drs305 View Post
    So you have run "sudo update-grub" and also clicked the "Recommended repair" button in the Boot Repair app?

    If so, the next step is to run the boot info script from Boot Repair and either post the link or the contents of the file it generates. It will provide us with details of your system's boot files as well as what Boot Repair has already tried to do.
    I still have the link from the Boot Repair. I wrote it down,

    http://paste.ubuntu.com/1143508/

    If it helps, Windows 8 is on /dev/sda3

  4. #4
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    Feb 2011
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    Re: Windows 8 Is Not in my Grub

    Is there any more information you need? :I

  5. #5
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    Re: Windows 8 Is Not in my Grub

    Thanks for posting the link.

    I looked at the file but I'm not a Windows user.

    You have the folders and files I would normally look for (/boot, /boot/bcd, and winload32.exe). However, in addition to not being a Windows user, I haven't seen a RESULTS.txt which has a working Windows 8 upgrade in it so I can compare it. So although I can find the files, I don't know if they are on the proper partition or not.

    Hopefully a Windows user familiar with 8 will see your post.

    The only question I have is 'What happens when you try booting the Grub Windows entries - especially the second one)?
    GRUB2

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  6. #6
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    Re: Windows 8 Is Not in my Grub

    Quote Originally Posted by drs305 View Post
    Thanks for posting the link.

    I looked at the file but I'm not a Windows user.

    You have the folders and files I would normally look for (/boot, /boot/bcd, and winload32.exe). However, in addition to not being a Windows user, I haven't seen a RESULTS.txt which has a working Windows 8 upgrade in it so I can compare it. So although I can find the files, I don't know if they are on the proper partition or not.

    Hopefully a Windows user familiar with 8 will see your post.

    The only question I have is 'What happens when you try booting the Grub Windows entries - especially the second one)?
    All I had to do was boot into the second one labeled as a Windows' Recovery Environment? O_e

    I kinda feel stupid that I didn't try that. I tried the first one, but you know, it was actually the recovery environment so I didn't bother trying the second one (I thought since I have had a different version of Windows in the past, it was just that old recovery partition).

    Just one last question, how could I go about changing the labels in the Grub menu? Because that's labeled incorrectly so I'd like to change it.

  7. #7
    Join Date
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    Ubuntu 14.04 Trusty Tahr

    Re: Windows 8 Is Not in my Grub

    With Vista the os-prober used to reverse the recovery & boot partition label confusing everyone. It now looks like with Windows 8, it is just calling everything recovery. Not sure what it sees to know the difference as script does not show anything.

    Customizer is the easiest way, but I have used drs305's manual instructions from before customizer existed.
    HOWTO: Grub Customizer Updated for grub 1.99
    http://ubuntuforums.org/showthread.php?t=1664134
    http://www.ubuntugeek.com/grub-custo...-included.html
    The Grub 2 Guide - drs305 also link to grub customizer
    http://ubuntuforums.org/showthread.php?t=1195275

    WARNING for Windows 8 Dual-Booters
    http://ubuntuforums.org/showthread.php?t=1953674
    It defaults shutdown to a hybrid hibernation/off state for fast boot
    But then files may be corrupted similar to Windows 7 Hibernation:
    http://superuser.com/questions/14472...te-w-dual-boot
    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.







  8. #8
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    Re: Windows 8 Is Not in my Grub

    I'd probably use Grub Customizer as well, as it is an easy to use GUI app. It does however rewrite some of your Grub files, so another method is just to create a custom menu. Both options are in oldfred's links.

    I'm glad you found out it works, and now I have a working RESULTS.txt for Win 8, so it's all good.

    When you don't have any other questions about this issue please mark the thread SOLVED via the 'Thread Tools' link near the top right of the first post.

    Happy Ubuntu-ing !
    GRUB2

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  9. #9
    Join Date
    Feb 2011
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    79

    Re: Windows 8 Is Not in my Grub

    Alright, thanks for the assistance. I'll mark it as solved.
    Now my dual-boot is working perfectly.

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