I installed my ubuntu 14.04 in pc alongside with win 10. Then I restart my pc and when i want to boot ubuntu, open me the window and there is:

GNU GRUB version 2.02 beta2-9ubuntu1.3

Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. Anywhere esle TAB lists possible device or file completions.


Please help


This will require a Live Ubuntu Media (CD/DVD/USB, the same you used to install Ubuntu). Boot from it in the "Try without installing" option. Open a terminal windows and run the following commands:

sudo mount /dev/sdaX /mnt

replacing X with your Ubuntu's partition number.

sudo grub-install /dev/sda --root-partition=/mnt
sudo chroot /mnt
sudo update-grub

Reboot and GRUB should be OK.

  • If you're running update-grub, I'd guess at least /dev should be mounted in the chroot. – muru Jan 1 '16 at 23:27

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