Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

This question already has an answer here:

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>
share|improve this question

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

1 Answer 1

Did you try below link..

https://help.ubuntu.com/community/Boot-Repair

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

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.