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Thread: Boot failure after GRUB 2.0 installation

  1. #11
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    Re: Boot failure after GRUB 2.0 installation

    Then it is (hd0, msdos2)

  2. #12
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    Re: Boot failure after GRUB 2.0 installation

    Quote Originally Posted by schragge View Post
    Then it is (hd0, msdos2)
    Correct. If you need to do the chroot, say so.
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 12.04 LTS 64bit & Windows 7 Ultimate 64bit

  3. #13
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    Re: Boot failure after GRUB 2.0 installation

    Quote Originally Posted by darkod View Post
    Correct. If you need to do the chroot, say so.
    What is chroot? It seems to have lots of uses but how does that apply to boot problems particularly?

  4. #14
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    Re: Boot failure after GRUB 2.0 installation

    By the way, when I got to the command "insmod normal", it says error:unknown filesystem.
    It is ntfs. What now?

  5. #15
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    Re: Boot failure after GRUB 2.0 installation

    Then it is the wrong (Windows) partition. What
    Code:
    grub rescue> set
    says?

  6. #16
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    Re: Boot failure after GRUB 2.0 installation

    Quote Originally Posted by schragge View Post
    Then it is the wrong (Windows) partition. What
    Code:
    grub rescue> set
    says?
    Code:
    prefix=(hd0,msdos2)/boot/grub,
    root=(hd0,msdos2),
    I can post a GParted screenshot if necessary.

  7. #17
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    Re: Boot failure after GRUB 2.0 installation

    Hold on, when we are talking about the ubuntu root partition, that's the root partition of your ubuntu install. It can't be ntfs since it doesn't install on ntfs.

    Is /dev/sda2 where you put win8/win7, or ubuntu?

    The chroot is a procedure to enter inside a linux installation, so any command you run will be like run from within. It can help in a way that it will install its grub2 on the MBR of the disk.
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 12.04 LTS 64bit & Windows 7 Ultimate 64bit

  8. #18
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    Re: Boot failure after GRUB 2.0 installation

    dev/sda2 is Windows 7, which the computer came pre-installed in.
    I have not changed the bootflag location ever since, and installed Win 8 and Ubuntu besides Win 7.

    Now, should I move the bootflag to Ubuntu partition or sth? Or is it enough to set Ubuntu partition as root on grub rescue?

  9. #19
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    Re: Boot failure after GRUB 2.0 installation

    Ok, what do you get after this:
    Code:
    grub> search.file /boot/grub/grub.cfg root
    grub> set prefix=($root)/boot/grub
    grub> set

  10. #20
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    Re: Boot failure after GRUB 2.0 installation

    search.file is an unknown command :/
    But ubuntu is installed on dev/sda7 if that's what you're looking for
    Last edited by dorruk; February 4th, 2013 at 04:14 PM.

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