Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

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

share|improve this question
You should not just "assume" grub2. – RolandiXor May 8 '11 at 2:08
10.04 came with GRUB2 by default (for fresh installations) so it's safe to assume that's what he's using. – htorque May 8 '11 at 7:27
up vote 1 down vote accepted

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

sudo update-grub2

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

share|improve this answer
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 8 '11 at 1:39
Then the only idea i can get is restoring the windows bootloader manually (you can find the way here 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 8 '11 at 1:51

Run Boot Info Script From a Live-CD or USB and post the results.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.