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How to recover GRUB after Microsoft Windows Installation ?
I
have been asked so many times by the linux newbies "How to
recover GRUB after installing XP or windows 7 ?".
To
make the Linux booting after installing windows on the other
partition, we need to re-install the GRUB again. You need a Ubuntu
bootable pendrive or live CD for this purpose. Boot your system with this pendrive or live CD. Open
command line terminal (Application-> Accessories-> Terminal). I
am assuming that windows is on first partition and Linux's "/"
on second partition. Run the following command.
$
sudo mount /dev/sda2 /mnt
$
sudo grub-install --root-directory=/mnt /dev/sda
The
above commands will install GRUB. Now boot your system with the
HardDisk. When the system is booted up open the terminal and run the
following command.
$
sudo update-grub2
The
above command will add an entry for windows operating system in
the grub config file.
