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 have Ubuntu 12.04 as my main OS, but have been thinking of doing some dualbooting, would making a partition specifically for Windows and installing it to that partition mess with GRUB? or Would it be fine?

share|improve this question
up vote 3 down vote accepted

1st option : get a CD including Boot-Repair

The easiest way to use Boot-Repair is to burn one of the following CDs and boot on it.

  • Boot-Repair-Disk is a CD starting Boot-Repair automatically. (English only).
  • Boot-Repair is also included in Ubuntu Secured Remix CDs (multi-languages).

Get boot-repair disk


  • You can also install the ISO on a live-USB.
  • Please note that this ISO is not an official Ubuntu image.

2nd option : install Boot-Repair in Ubuntu

Either add ppa:yannubuntu/boot-repair to your Software Sources via the Software Centre or, for speeds-sake, add it using a new Terminal session:

sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update
sudo apt-get install -y boot-repair && boot-repair

Image of Boot-Repair application

You can run this from terminal sudo boot-repair

share|improve this answer
so with GRUB getting messed up will I have to redo Ubuntu too? – Alex Poulos Mar 6 '12 at 4:31
NO, just repair the GRUB – Ringtail Mar 6 '12 at 4:34
So it wont touch Ubuntu itsself? just the GRUB loader then? – Alex Poulos Mar 6 '12 at 4:47
reading required – Ringtail Mar 6 '12 at 4:51
I read that, I just need to know if because it touches the GRUB that it ONLY touches the GRUB not the 12.04 – Alex Poulos Mar 6 '12 at 6:20

Yes, it will mess it up, but...

If you install Windows 7 / Windows XP, installer will override MBR to point to windows boot menu -- which by the way don't allow you to boot linux.

If you boot some live distro from flashdisk/CD/DVD after succesfull windows install and update GRUB (and edit grub.cfg to point to windows partition) you will be good again.

Note that Windows 8 beta behaves little differently.

share|improve this answer
Thanks for the help man. – Alex Poulos Mar 6 '12 at 4:31

Windows would mess up GRUB, after you install Windows just use a live CD and follow these instructions.

share|improve this answer
Thank you mate. I appreciate your help. – Alex Poulos Mar 6 '12 at 4:31
Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. – Christopher Kyle Horton Mar 6 '12 at 9:46

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.