I installed Ubuntu to spare raw partitions using VirtualBox, and have managed to get it to boot up and get it fully working in VirtualBox.

Now I want to be able to boot it natively too. My current/host OS is Ubuntu. My host Grub menu can't seem to detect the new Ubuntu install on the other partitions so I can't select the new Ubuntu to boot natively. Otherwise I can boot into my current/host OS fine.

Is there a way where I can get Grub to auto detect or reconfigure itself to detect the new Ubuntu OS on the other partitions?

Thanks

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Have you run sudo update-grub? – emb1995 Jun 16 '11 at 16:53
Just saw your comment after I found the solution, yes that was the command that fixed it. Thanks. – cwc Jun 17 '11 at 10:30
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Fixed it. Had to do

sudo update-grub

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