Grub failure after cat removed USB drive

Posted by user76270 on Ask Ubuntu See other posts from Ask Ubuntu or by user76270
Published on 2012-07-11T02:24:30Z Indexed on 2012/07/11 3:23 UTC
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grub2

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I had a perfectly working Ubuntu Server system with U12.4 and Server installed and was setting up the mail system.

When I was absent from my computer room my cat (furry type) apparently got to play with a USB dongle on an extension cable and removed it. The system went berserk and now will not boot. I ran Ubuntu 12.4 on the install disk and the directory structure and every thing appears to still be on the drives.

How do I recover the GRUB boot section without the system repartitioning everything and wiping everything else? Please I am a total newb when it comes to Linux errors and fixing them.

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