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Thread: Moving bootloader to another disk

  1. #1
    Join Date
    Mar 2007

    Smile Moving bootloader to another disk

    After some trouble with installing Ubuntu (the automatically installation actually installed to an external hd without my knowledge), I finally made it working yesterday by makeing partitions myself and run the manual installationprocess. I can now boot both Ubuntu and Windows.

    But; When I manually chose the installationpartitions, I missed on the bootloader - which I placed in a wrong hd... That means that I now have to go into bios and choose that drive every time I want to boot into Ubuntu.

    I know I should reinstall, but is there a (simple) way to move that bootloader and merge it into the one on my systemdrive without loosing the opportunity to dualboot?

  2. #2
    Join Date
    Nov 2009
    Mataro, Spain
    Ubuntu 14.04 Trusty Tahr

    Re: Moving bootloader to another disk

    No need to reinstall. Simply boot ubuntu, and in terminal do:
    sudo grub-install /dev/sdX

    using the correct letter for the disk instead of X. That will install it on the MBR of that disk.

    Further more, to double check with which disks grub2 is "connected", you can do:
    sudo dpkg-reconfigure grub-pc

    You should be able to select/unselect disks in the list. You select/unselect with Space bar. You do need to do the grub-install command above first.
    Ubuntu 14.04 LTS 64bit & Windows 10 Pro 64bit

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