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Thread: Unable to boot into Windows 8

  1. #1
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    Unable to boot into Windows 8

    I'm using a w530 with an extra mSATA 16GB SSD, and installed Ubuntu 13.04 onto the mSATA drive.
    The main SSD (480GB) has Windows 8 on it with BitLocker enabled.
    After performing an UEFI installation of ubuntu via a USB drive, GRUB boots directly into Ubuntu, so I ran boot-repair as per this post.
    The pastebin results are here.
    Now upon boot, I get a few options, inculding Windows 8, but upon selecting them, I get the error
    Code:
    disk hd1,gpt2 not found
    Ubuntu boots just fine.
    If anyone has any suggestions, I'll be more then willing to try them
    Thanks!
    Last edited by matthew5025; June 23rd, 2013 at 01:54 PM.

  2. #2
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    Re: Unable to boot into WIndows 8

    It does not look like you did a UEFI install, although now Boot-Repair has added efi files.

    Both drives have a Windows boot loader in the protective MBR, but sdb is still MBR not gpt. Normally to boot with UEFI drive must be gpt partitioned.

    I have BIOS but use gpt. I have created my gpt partitions with gparted. Under device, create partition table, advanced, choose gpt not the default msdos (MBR) partitioning.
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  3. #3
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    Re: Unable to boot into WIndows 8

    A quick look suggests to me that it is looking at the wrong hard drive.

    IIRC, it starts at 0 so since /dev/sda1 is where Windows is located the correct format for the code is
    disk hd0,gpt2
    I would think hd1 is actually the ext4 partition on your second SSD and therefore it's looking to that for a boot but obviously is not getting any kind of Windows bootloader.

  4. #4
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    Re: Unable to boot into WIndows 8

    Quote Originally Posted by oldfred View Post
    It does not look like you did a UEFI install, although now Boot-Repair has added efi files.

    Both drives have a Windows boot loader in the protective MBR, but sdb is still MBR not gpt. Normally to boot with UEFI drive must be gpt partitioned.

    I have BIOS but use gpt. I have created my gpt partitions with gparted. Under device, create partition table, advanced, choose gpt not the default msdos (MBR) partitioning.
    I don't quite get what you mean, but here's what gparted has to say about the two drives.




    Quote Originally Posted by cincinnatus13 View Post
    A quick look suggests to me that it is looking at the wrong hard drive.

    IIRC, it starts at 0 so since /dev/sda1 is where Windows is located the correct format for the code is
    disk hd0,gpt2
    I would think hd1 is actually the ext4 partition on your second SSD and therefore it's looking to that for a boot but obviously is not getting any kind of Windows bootloader.
    I tried editing the command in grub before boot by pressing 'e' but still get
    Code:
    disk hd0,gpt2 not found

  5. #5
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    Re: Unable to boot into WIndows 8

    Please attach screen shots with paperclip icon in Go Advanced post, not in body.
    Gparted does not show anything more than BootInfo report shows and does not show whether drive is gpt or MBR. Although sometimes the graphical output is easier to see if many partitions.

    If you look at line 68 in BootInfo it says for sda GUID detected. That means it is gpt(GUID) partitioned. There is not entry like that for sdb, so it is MBR(msdos). So that may contribute to the issues. Better if both drives are gpt. See more info on two drive UEFI installs in link in my signature.
    Last edited by oldfred; June 21st, 2013 at 03:56 PM.
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  6. #6
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    Re: Unable to boot into WIndows 8

    Quote Originally Posted by oldfred View Post
    It does not look like you did a UEFI install, although now Boot-Repair has added efi files.

    Both drives have a Windows boot loader in the protective MBR, but sdb is still MBR not gpt. Normally to boot with UEFI drive must be gpt partitioned.

    I have BIOS but use gpt. I have created my gpt partitions with gparted. Under device, create partition table, advanced, choose gpt not the default msdos (MBR) partitioning.
    Quote Originally Posted by oldfred View Post
    Please attach screen shots with paperclip icon in Go Advanced post, not in body.
    Sorry about that

    Quote Originally Posted by oldfred View Post
    Gparted does not show anything more than BootInfo report shows and does not show whether drive is gpt or MBR. Although sometimes the graphical output is easier to see if many partitions.

    If you look at line 68 in BootInfo it says for sda GUID detected. That means it is gpt(GUID) partitioned. There is not entry like that for sdb, so it is MBR(msdos). So that may contribute to the issues. Better if both drives are gpt. See more info on two drive UEFI installs in link in my signature.
    Anyway, I have decided to DBAN my whole computer and start afresh. Would you recommend having a EFI partition on both the WIN8 disk and the Ubuntu one, or is one enough?
    Also, if you have any suggestions on how I should proceed, do share them =)

  7. #7
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    Re: Unable to boot into WIndows 8

    System will boot from one efi partition, but I suggest an efi partition on every drive, just in case later you want to boot it separately. But with your small SSD that may not be as necessary.

    Are you primarily a Windows or Ubuntu user. If Windows you may want to keep the SSD for Windows with the Intel SRT. If Ubuntu then having / (root) on the SSD makes better use of SSD, but since it is small you need all you data on rotating drive.

    I have not installed Windows 8, so I do not know much about it other than all the reports posted. Probably best to let it install to your hard drive and then resize from within Windows. Then install Ubuntu. Both need to be installed in UEFI mode. And how you boot install media is how it installs.
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  8. #8
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    Re: Unable to boot into WIndows 8

    Quote Originally Posted by oldfred View Post
    System will boot from one efi partition, but I suggest an efi partition on every drive, just in case later you want to boot it separately. But with your small SSD that may not be as necessary.

    Are you primarily a Windows or Ubuntu user. If Windows you may want to keep the SSD for Windows with the Intel SRT. If Ubuntu then having / (root) on the SSD makes better use of SSD, but since it is small you need all you data on rotating drive.

    I have not installed Windows 8, so I do not know much about it other than all the reports posted. Probably best to let it install to your hard drive and then resize from within Windows. Then install Ubuntu. Both need to be installed in UEFI mode. And how you boot install media is how it installs.
    Thanks for all your help! I'll try dual boot again once Windows 8.1 Beta is out.
    I'll open another thread if I encounter any problems. Thanks again!

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