Use Boot Repair to fix your bootloader.
- Boot Ubuntu from a LiveCD or Live USB
- Connect to the internet
- Open a terminal, and add the Boot Repair PPA
sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update
- Install Boot Repair
sudo apt-get install -y boot-repair && boot-repair
- Launch and use, see https://help.ubuntu.com/community/Boot-Repair#Using_Boot-Repair for more details
Source: grub2 – After update, get “error: file not found.” followed by “grub rescue> _” – Ask Ubuntu
grub2 – After update, get “error: file not found.” followed by “grub rescue> _” – Ask Ubuntu was last modified: July 13th, 2017 by