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I am getting this grub rescue error no filesystem thing. I have read a lot of threads on this issue, but those solutions are not working. I tried live CD, and changed the booting option from hard disk to CD ROM, but still I get the same grub rescue error.

I have two operating systems, the other one is Windows 7. I formatted some part of my hard drive during which GRUB might have lost some files. I get that, but now what should I do? Please tell me how to deal with this thing:

Error: unknown filesystem.
grub rescue>
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marked as duplicate by jokerdino Sep 2 '13 at 15:02

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

If you believe you have done as you mentioned in the above question then you will have to use either CD or USB to recover your OS. – Tarun Aug 21 '13 at 6:53

Did you try below link..

or can you provide more information regarding your GRUB ... some snapshoot...

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