Windows not shown in Grub after installing 12.10

Posted by rowanquigley on Ask Ubuntu See other posts from Ask Ubuntu or by rowanquigley
Published on 2012-10-28T09:40:52Z Indexed on 2012/10/31 17:14 UTC
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Filed under:

boot

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grub2

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dual-boot

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Windows

I just installed 12.10 alongside Windows 7. I split my partition into two because disk reader during the installation didn't recognize Windows 7 as being installed on the computer. It installed correctly and I restarted only to find out it wasn't recognized in Grub also and booted straight to Ubuntu.

I read this post and thought of using boot-repair would be fine but I gain this error:

gpt detected. 
Please create bios-boot partition (>1MB, unformed filesystem, bios_grub flag). 
This can be performed via tools such as Gparted. 
Then try again.

I've no idea what it means or what to do next. Suggestions would be appreciated and I have lost my Windows installation disk and I really don't want to have to go looking for it.

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