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This question already has an answer here:

enter image description hereBasically, I messed up my partitions and decided to do a full re-install of both Windows XP and Ubuntu 11.10 (I know that 11.10 is outdated, but I was planning to do an update to 12.04 as soon as I got everything happened). Here is a sequence of what I did:

  1. Installed Windows XP onto 20gb of hard-drive space

  2. Installed Ubuntu 11.10 onto the remaining 10 gb of space using the advance setup option where I partitioned: (1gb swap, 200mb /boot, and 8.8gb / , (see screenshot))

  3. Trouble struck, when I rebooted, grub2 didn't show Windows XP under my boot options.

  4. I ran sudo update-grub but it still didn't find windows

  5. I opened gparted and added the 'boot' flag to my windows xp partition (I was getting desperate and didn't know what to do)

And now, I'm stuck with only Ubuntu, and I don't want to have to re-install both Ubuntu and Windows to get grub working again.

Please note, I have seen How to boot Windows XP (no GRUB menu is shown)? and Add windows to my boot menu but I couldn't find anything useful.

Thanks a lot,

DevNewb

marked as duplicate by karel, Fabby, Thomas, Charles Green, Eric Carvalho Aug 31 '18 at 19:39

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • The first link contains a useful link for the Boot Info Script. You should use it and let us see the results. – mikewhatever Sep 24 '13 at 11:43
  • Ok, the results are at: paste.ubuntu.com/6149731 – Moose Sep 24 '13 at 11:50
  • It doesn't make sense, because I did pretty much the same thing when I first installed ubuntu, but it doesn't work now... – Moose Sep 24 '13 at 11:57
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    Not sure how you've done it, but I see two problems: Windows boot files are missing, and /dev/sda is a logical partition. Pretty sure it wouldn't work in such a setup, even if you could somehow load it. Don't think you can solve it without a reinstall. – mikewhatever Sep 24 '13 at 13:03
  • OK... I will restore the windows mbr and see if it boots, if not I'll just reinstall :P – Moose Sep 24 '13 at 14:25
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boot-repair is probably your best option. Here's how you can use it.

  1. Boot into Ubuntu
  2. Open a terminal and run sudo apt-get update && sudo apt-get install boot-repair
  3. Open boot-repair
  4. Use choose the Recommended Repair
  5. Follow the instructions you are given
  6. Reboot once boot-repair is done
  7. Profit!
  • It doesn't work because it doesn't support Ubuntu 11.10.... I need to wait till next month to download 12.04 because of my Internet package... – Moose Sep 24 '13 at 11:53

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