I have installed Ubuntu 12.04 in Lenovo G580 laptop. After installed successfully restarted my laptop. "grub not found" message appeared when ever pressed power button. I reinstalled again and installed "grub" by using ""so I realized something problem than removed F12 function key. Now also same error message appearing whenever I pressed power button. Finally I deleted 12.04 version then installed 13.04. Even now also same error message appearing.

Now I am realizing the grub which I installed is making some problem. How can I remove this grub?

My system windows 7 OS also. previously both were working good. help me


I faced the same problem. I expect you have your Live CD/USB with you. Just follow the simple steps and you'll solve it in less than 5 minutes.
How to Repair, Restore, or Reinstall Grub 2 with a Ubuntu Live CD or USB
Note: Remember to replace the blue parts with the relevant partitions.

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  • first, from your liveCD run Gparted.. the corrrect command would be sudo mount /dev/sda1 /mnt Just see in gparted which is the suitable one for you. I had sdb3 for me. Replace XY with the necessary drive characters and you can proceed then. All the best. – Rohitt Vashishtha Oct 4 '13 at 16:23

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