--- Install / Repair Ubuntu / Ach Linux efi boot! ! ! (Including dual-boot)

https://www.cnblogs.com/congbo/archive/2012/09/20/2688795.html

https://blog.csdn.net/one_six_mix/article/details/53749851

In addition to the red part of the other processes, and the former has not changed! 

grub-install --target=x86_64-efi --efi-directory=/boot/efi

update-grub

 

http://www.mintos.org/skill/rescue-efi-grub.html