How to restore the Ubuntu grub bootloader (9.10 and beyond)?

First you need to find out what your drives are called. You can do this by going to a terminal and typing:

Code:

sudo fdisk -l

From that you need to find the device name of your Ubuntu drive, something like “/dev/sda5″.
So, still in the terminal, type:

Code:

sudo mkdir /media/sda5 sudo mount /dev/sda5 /media/sda5

And then, to reinstall the grub:

Code:

sudo grub-install --root-directory=/media/sda5 /dev/sda

Push enter and you’re done! Of course you need to replace “/dev/sda5″ and “/dev/sda” with what you found in the fdisk output.