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Thread: Installing dual boot Precise (12.04) alongside Windows 7

  1. #21
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    Ubuntu 14.04 Trusty Tahr

    Re: Installing dual boot Precise (12.04) alongside Windows 7

    One way or the other, you seem to be booting the ubuntu cd in EFI mode, so it tries to install grub-efi instead of the standard grub-pc. Of course, it fails since you are not running EFI boot.

    Boot with the cd in live mode and try this in terminal:
    Code:
    sudo mount /dev/sda6 /mnt
    sudo mount --bind /proc /mnt/proc
    sudo mount --bind /dev /mnt/dev
    sudo mount --bind /sys /mnt/sys
    sudo chroot /mnt
    Just in case, purge grub2 and reinstall it:
    Code:
    apt-get remove --purge grub-pc grub-common
    apt-get install grub-pc
    update-grub
    grub-install /dev/sda
    Exit chroot and unmount all:
    Code:
    exit
    sudo umount /mnt/sys
    sudo umount /mnt/dev
    sudo umount /mnt/proc
    sudo umount /mnt
    Restart and keep your fingers crossed.
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 14.04 LTS 64bit & Windows 10 Pro 64bit

  2. #22
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    Xubuntu 15.04 Vivid Vervet

    Re: Installing dual boot Precise (12.04) alongside Windows 7

    Darko,

    Something is missing. When I enter the command
    sudo chroot /mnt
    I get the message:
    bash: groups: command not found
    Then, if I try
    apt-get remove --purge grub-pc grub-common
    there is an error:
    bash: apt-get: command not found

    How should I proceed?

    Kevin

  3. #23
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    Re: Installing dual boot Precise (12.04) alongside Windows 7

    In the BIOS there is an option
    Run UEFI Application..
    and in the System Setup section, under Boot Order, there were a bunch of devices under UEFI Boot Sources and some more under Legacy Boot Sources. I disabled the UEFI bunch, and will try the installation again.

  4. #24
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    Re: Installing dual boot Precise (12.04) alongside Windows 7

    Quote Originally Posted by kjaspan View Post
    In the BIOS there is an option
    Run UEFI Application..
    and in the System Setup section, under Boot Order, there were a bunch of devices under UEFI Boot Sources and some more under Legacy Boot Sources. I disabled the UEFI bunch, and will try the installation again.
    That should do it. Let us know.
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 14.04 LTS 64bit & Windows 10 Pro 64bit

  5. #25
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    Re: Installing dual boot Precise (12.04) alongside Windows 7

    No, alas, it just booted into Windoze again.

    Here is the output of BootInfo:
    http://paste.ubuntu.com/1041352/

    I await responses with bated breath.

    It seems to me, unskilled though I am in this regard, that there is a fork in the road where we encounter UEFI, supported both by Intel and AMD but does Grub support it???

    Will Boot Repair or EasyBSD fix this???

  6. #26
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    Arrow Re: Installing dual boot Precise (12.04) alongside Windows 7

    Quote Originally Posted by kjaspan View Post
    Here is the output of BootInfo:
    http://paste.ubuntu.com/1041352/
    IMHO it was a bad idea to separate /usr, /tmp, /opt, /srv, /var, /usr/local but not /boot, it's useless and only complicates your problem.
    If i were you, i would:
    1) create a 1Go separate /boot, at the start of the disk (inside the first 137GB of the disk).
    2) reinstall Ubuntu with this separate /boot, and without separate /usr, /tmp, /opt, /srv, /var, /usr/local (/home can be ok).

    Remarks:
    - your BIOS is setup in EFI mode, but as Windows is not installed in EFI, and the disk is not GPT, I would first try to install without EFI (and without BIOS-boot partition), but with the separate /boot as described above.
    - today Boot-Repair doesn't recognize separate /usr, but I plan to fix it this week

  7. #27
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    Re: Installing dual boot Precise (12.04) alongside Windows 7

    Merci, Yann(ick?), your English is excellent.

    I created /boot in /dev/sda3 and specified the boot loader to be placed there. I hope that's what you meant. Otherwise I just created a swap area, / and /home and am installing now. I hope to have an answer before you switch out the lights.

    A bientot,

    Kevin

  8. #28
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    Arrow Re: Installing dual boot Precise (12.04) alongside Windows 7

    Salut
    Quote Originally Posted by kjaspan View Post
    I created /boot in /dev/sda3
    You can try like this, but it may fail because sda2 ends at 200GB of the disk, and the BIOS limit is generally 137GB.
    If it fails, you will need to place your /boot partition just before or just after your current sda1.

  9. #29
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    Re: Installing dual boot Precise (12.04) alongside Windows 7

    Yann,
    You were right, alors, it failed. I will try your latest suggestion though I cannot see how to put /boot at the beginning or end of /dev/sda1. But I did specify the boot loader to go in /dev/sda. We shall see, but I don't have a high level of confidence.

    Kevin

  10. #30
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    Re: Installing dual boot Precise (12.04) alongside Windows 7

    That failed, too. Here is the output of Bootinfo:
    http://paste.ubuntu.com/1041660/
    I am going to take a chance and run Boot Repair now. What the heck, it's been 3 days and counting with this problem! As you can see grub is in /dev/sda6, which doesn't help.

    Boot repair says the boot of my PC is in EFI mode but no EFI partition was detected. I may want to retry after creating an EFI partition (FAT32, > 200M, start of disk, boot flag). Perhaps I should put /boot there?

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