Can't boot after disk error 12.10

Posted by user1189907 on Ask Ubuntu See other posts from Ask Ubuntu or by user1189907
Published on 2012-11-10T16:48:49Z Indexed on 2012/11/10 17:17 UTC
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grub2

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boot-failure

Lately, I've been having Ubuntu crashing randomly.. it goes into read only mode, but once I restart it's working again.

Today it happened again and I had to manually shut the computer down.

Now I'm not able to boot anymore. I get the following when turning the computer on:

error: unknown filesystem

And I'm left at "grub rescue".

I booted from the Live CD and installed "boot-repair". When I run it it says "no os has been found on this computer", it gives me no option to carry out any fixes.

Boot Repair generated the following output which shows some errors: http://paste.ubuntu.com/1348224/

Any idea on how to fix this?

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