Ubuntu: How to fix GRUB's “file not found.” error [duplicate]



Question:

I see this:

GRUB loading.  Welcome to GRUB!    error:file not found.  Entering rescue mode...  grub rescue> _  

I tried using the Windows installation disk but it didn't work.

I also tried reinstalling Kali or Debian but they didn't boot to the installation part and it also doesn't want to boot the original operating system.


Solution:1

  • +live boot ubuntu or kali from usb

    • connect to the Internet
    • install bootrepair by using following process:
    • open a new Terminal, then type the following commands (press Enter after each line)

    sudo add-apt-repository ppa:yannubuntu/boot-repair
    sudo apt-get update
    sudo apt-get install -y boot-repair && boot-repair

    +launch Boot-Repair from either : -the Dash (the Ubuntu logo at the top-left of the screen) -or by typing 'boot-repair' in a terminal -Then click the "Recommended repair" button. When repair is finished, note the URL (paste.ubuntu.com/XXXXX) that appeared on a paper, then reboot and check if you recovered access to your OSs.

    If the repair did not succeed, indicate the URL to people who help you by email or forum. [further on boot repair here][1]

    [1]: https://help.ubuntu.com/community/Boot-Repair


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