- Boot from Ubuntu Live CD - any Ubuntu distribution is okay to use for as long as you get access to linux terminal or bash shell.
- Run command "sudo fdisk -l" - this is to find out where your Linux distribution is located or installed. For instance, in the image below, my Linux is installed on sda1.
- Run command "sudo mount /dev/sda1 /mnt" - this is to tell Grub that your primary Linux is installed on such location. It should be pretty strait forward.
- Run command "sudo grub-install --root-directory=/mnt/ /dev/sda" - this is to re-install/restore your Grub2 menu with option to boot to your Windows 7 operating system.
- Reboot your system either on GUI or bu running commands(eg. sudo shutdown -r now). You can already remove the Live CD now.
- After reboot, you should update Grub2 by running command "sudo grub-update".
Paul Labis: This is a personal blog where everyone can read my experiences, ideas and thoughts about programming, latest gadgets and other information technology related topics, lifestyle and many other stuff I would like to share to the public.
A month ago I decided to dual-boot my laptop with windows 7 and Ubuntu 10.04 version as my main operating system. So I first installed Ubuntu 10.04 then Windows 7 afterwards. After installing Windows 7, ubuntu distribution isn't accessible. I am not sure but I think Windows installation might have wiped out Ubuntu grub.
To be able to recover Grub2 menu along with the option to select either which operating system you want to use, I did the following recovery steps below.
That is all you need to do! Easy isn't it? Unlike other ways, the steps above are simplest because you don't need to edit files.
I hope you find this article helpful and thanks for reading.
Like everyone else, I also did research and all credits to ulyssesonline.