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Thread: Changed partition type, computer won't boot. "GRUB Error 17"

  1. #21
    Join Date
    May 2007
    Location
    STL, MO
    Beans
    1,283
    Distro
    Kubuntu Karmic Koala (testing)

    Re: Changed partition type, computer won't boot. "GRUB Error 17"

    You can try to backup your partition onto the external. You need to figure out which disk is the external with
    Code:
    sudo fdisk -l
    then run
    Code:
    sudo dd if=/dev/sda2 of=/dev/sdX
    substitute the X.

    That was a typo in my earlier post. It should be /dev/sda. That dd command will take a long time, and it won't give you any feedback about how far along it is. Just backup your mbr and run the parted command from my earlier post.

  2. #22
    Join Date
    Nov 2009
    Beans
    12

    Re: Changed partition type, computer won't boot. "GRUB Error 17"

    Thank you for your consistent aid, jbrown.
    I ran the "sudo dd if=/dev/sda2 of=/dev/sdf1" command and the output was this:
    "ubuntu@ubuntu:~$ sudo dd if=/dev/sda2 of=/dev/sdf1
    2+0 records in
    2+0 records out
    1024 bytes (1.0 kB) copied, 0.0149586 s, 68.5 kB/s"

    Does that look correct to you..? I don't think it should say 1024 bytes. It didn't take long at all, either. D:

  3. #23
    Join Date
    May 2007
    Location
    STL, MO
    Beans
    1,283
    Distro
    Kubuntu Karmic Koala (testing)

    Re: Changed partition type, computer won't boot. "GRUB Error 17"

    It's not reading enough data, so we need to manually set what needs to be copied. This may not be accurate, but it's what you posted from fdisk earlier.
    Code:
    sudo dd if=/dev/sda of=/dev/sdf1 skip=1275 count=23700
    I'm not sure that's large enough. Was your Vista partition really small (like 6GB)?

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