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I installed Ubuntu 10.04 about a week ago and have been able to dual boot between it and Windows 7 without any difficulty. A few days ago I went to boot windows and it wasn't in GRUB's menu. Per another question, I installed startupmanger, but it doesn't seem to offer any options for adding a new OS.

How do I restore Windows 7 to my GRUB2 menu?

Edit: Given that I don't have a /boot/grub/menu.lst I'm assuming I'm using GRUB2

Community
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amccormack
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2 Answers2

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According to ubuntu's wiki you have to run this command

sudo update-grub2

Edit : Here is the page of the wiki i mentioned.

Chriskin
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  • This ran successfully, but did not find the windows . It did find the Windows recovery boot sector, but that was already listed. This computer only has one drive, so its odd that its finding some and not others. – amccormack May 08 '11 at 01:39
  • Then the only idea i can get is restoring the windows bootloader manually (you can find the way here http://kb.acronis.com/content/1507) and then manually restoring grub through the same command as above from a live cd (because windows' bootloader will probably become default when you recover it)

    It's probably not the best way but it's the only one i can think of.

     – Chriskin May 08 '11 at 01:51
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Run Boot Info Script From a Live-CD or USB and post the results.

wojox
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