If we get Grub rescue error message or Grub bootloader not showing to boot into Linux operating system, this method will help to solve all those problems. In this video we will see how to install grub bootloader manually.
Comments to install grub bootloader :
sudo mount /dev/sdax /media (where sdax x = linux partition number)
sudo mount /dev /media/dev
sudo mount /sys /media/sys
sudo mount /proc /media/proc
sudo grub-install /dev/sda
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