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Thread: executing grub-install dev/mapper failed

  1. #1
    Join Date
    Oct 2009
    Beans
    5

    executing grub-install dev/mapper failed

    l cant install ubuntu on my dell pc cause of this error after reinstalling windows 7, what can l do?

  2. #2
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: executing grub-install dev/mapper failed

    If you have a mapper, you have RAID or LVM or something that needs drivers that are not normally in the liveCD. The alternative installer has those drivers. You can add the drivers or run this gui which downloads the drivers in the background.

    sudo apt-get install lvm2
    sudo apt-get install mdadm

    Boot Repair -Also handles LVM, GPT, separate /boot and UEFI dual boot.:
    https://help.ubuntu.com/community/Boot-Repair
    You can repair many boot issues with this or 'Create BootInfo' report (Other Options) & post the link it creates, so we can see your exact configuration an diagnose advanced problems.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  3. #3
    Join Date
    Oct 2009
    Beans
    5

    Re: executing grub-install dev/mapper failed

    Boot successfully repaired.

    Please write on a paper the following URL:
    http://paste.ubuntu.com/1203740/

    In case you still experience boot problem, indicate this URL to:
    boot.repair@gmail.com or to your favorite support forum.

    You can now reboot your computer.
    Please do not forget to make your BIOS boot on mapper/isw_dddighfbed_ARRAY0 (1933GB) disk!

    The boot files of [Ubuntu 12.04.1 LTS] are far from the start of the disk. Your BIOS may not detect them. You may want to retry after creating a /boot partition (EXT4, >200MB, start of the disk). This can be performed via tools such as gParted. Then select this partition via the [Separate /boot partition:] option of [Boot Repair]. (https://help.ubuntu.com/community/BootPartition)

  4. #4
    Join Date
    Oct 2009
    Beans
    5

    Re: executing grub-install dev/mapper failed

    now l can choose between windows and linux, but after selecting linux, it appears the ubuntu writing and the pc freezes here

  5. #5
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: executing grub-install dev/mapper failed

    What video do you have? With nVidia I have to use nomodeset on linux line in grub menu.

    How to set NOMODESET and other kernel boot options in grub2
    http://ubuntuforums.org/showthread.php?t=1613132
    https://help.ubuntu.com/community/BootOptions
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







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