Repair grub2 EFI and BIOS mode

Submitted by editor on Sun, 07/31/2016 - 16:51
Question

How to repair a broken grub2 EFI (uEfi) mode and BIOS mode ?

To repair a broken grub boot from a linux live CD/DVD/USB. For the grub2 EFI boot from uEFI mode and BIOS for BIOS mode.

Then install boot-repair tool from PPA

#Add PPA
sudo add-apt-repository ppa:yannubuntu/boot-repair

#Update apt
sudo apt-get update

#Install boot-repair
sudo apt-get install -y boot-repair

#Run boot-repair as sudo
sudo boot-repair

The use the automatic repair (recommended) mode if you are a beginner.

 

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