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Thread: BOOTMGR is missing - ONLY when reboot and external HD is on

  1. #1
    Join Date
    Jan 2010
    Beans
    422

    BOOTMGR is missing - ONLY when reboot and external HD is on

    I formatted my external HD earlier using NTFS. Now, for some reason, when I reboot my machine while my external HD is turned on, it gives me an error saying "BOOTMGR is missing" and it tells me to press ctrl + alt + del to restart...

    Did I format my external HD using the wrong filesystem or something?

  2. #2
    Join Date
    May 2007
    Beans
    52

    Re: BOOTMGR is missing - ONLY when reboot and external HD is on

    You need to change your boot device order.

    Go to BIOS (at power on)

    Locate Boot Device Order
    Move order and put first internal HDD
    USB or external HDD should be after.

    When you boot, bios will look for internal disk first.

  3. #3
    Join Date
    Jan 2010
    Beans
    422

    Re: BOOTMGR is missing - ONLY when reboot and external HD is on

    Blah, simple. Can't believe I missed that, heh. Thanks.

  4. #4
    Join Date
    May 2007
    Beans
    52

    Re: BOOTMGR is missing - ONLY when reboot and external HD is on

    You're welcome.
    Good it was simple
    BOOT errors are scary if unexpected.

  5. #5
    Join Date
    Jan 2010
    Beans
    422

    Re: BOOTMGR is missing - ONLY when reboot and external HD is on

    Indeed. Especially when it comes to linux

  6. #6
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: BOOTMGR is missing - ONLY when reboot and external HD is on

    But Bootmgr is a Windows 7/Vista file.
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  7. #7
    Join Date
    Jan 2010
    Beans
    422

    Re: BOOTMGR is missing - ONLY when reboot and external HD is on

    Quote Originally Posted by oldfred View Post
    But Bootmgr is a Windows 7/Vista file.
    Yes, but since I forgot about the boot sequence, I thought maybe GRUB wasn't working anymore and thought maybe it didn't format the entire drive like it was supposed to.

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