1. Gibreel Abdullah's Avatar
    I installed Windows 10 preview few days back and dual booted it with Ubuntu 14.10.
    When I updated to the latest build of Win 10, Grub was replaced by windows and I can't login to Ubuntu. Does anyone else have the same problem?
    01-24-2015 10:24 AM
  2. xaris93's Avatar
    Try to boot in a live cd of Ubuntu. And install refind, i think it will work :P
    01-24-2015 10:47 AM
  3. Ashalinia's Avatar
    Boot into an Ubuntu live CD/USB, open the terminal, and type the following:​

    sudo grub​

    root (hd0,0)
    (Where the first number is the hard drive containing grub and the second is the partition containing it so the numbers may vary.)

    setup (hd0)
    (Again, change 0 with the hard drive location of grub.)


    Then remove the live CD/USB and reboot. If you need help finding the location of grub, you can try using ​find /boot/grub/stage1 to determine it. Hopefully this helps you.
    01-24-2015 12:14 PM
  4. Gibreel Abdullah's Avatar
    "grubroot" is not a command. At least my terminal does not accept it.
    01-24-2015 12:25 PM
  5. Ashalinia's Avatar
    Sorry, something weird happened with the formatting.

    The commands should be ​sudo grub​, root (hdx, y), setup (hdx), and ​exit. x being the drive grub is located on and y being the partition it's in.

    ​Just to clarify, "sudo grub" and "root" are separate commands and you only need to call sudo once.
    Gibreel Abdullah likes this.
    01-24-2015 04:40 PM
  6. Gibreel Abdullah's Avatar
    Well there was no data worth saving in Ubuntu. So I did a fresh install and Grub was back. Thanx anyway, might use these commands when the next build comes.
    01-24-2015 08:32 PM
  7. Shan Ali Khan's Avatar
    i really done know as Microsoft is open sourcing .NET and many other changes why its not supporting GRUB or linux addition with win10
    01-25-2015 10:19 AM
  8. Bum kailash kumar's Avatar
    me 2 having the same problem
    04-05-2015 01:23 PM

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