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'm trying to install Ubuntu as secondary OS on my laptop. I have Windows 8 already installed on my laptop.

Now, I know how to run Ubuntu from USB drive, I created addition partition and formatted it to EXT4.

So I'm ready to install.

Now, 'Device for boot loader installation:' displays:

/dev/sta ATA HITACHI (750 GB)
/dev/sta1 Windows 8 (loader)
/dev/sta6 Ubuntu 12.04 (12.04)

I tries choosing Ubuntu 12.04 partition but it doesn't even let me to pick which OS to install and goes straight to Windows 8.

Which partition I must choose to be able to pick which OS to boot from? Preferably, set up so Windows 8 will be at first place, and Ubuntu on second.

Any ideas? I don't want to mess up anything if I pick something wrong.

share|improve this question
Choosing /dev/staa doesn't do the trick. :( – HelpNeeder Nov 20 '12 at 2:24
Choose something that doesn't overwrite Windows MBR.. I chose /dev/sta and now I'm stuck with trying to rebuild Windows MBR.. I'd choose /dev/staX/ where X is the device/partition of your Ubuntu installation, I haven't confirmed if it doesn't overwrite Windows MBR but it should be safer than choosing /dev/sta – Petrus K. Mar 13 '15 at 19:02
up vote 24 down vote accepted

Here's an example that could help you out:

Installation type

Under "Device for boot loader installation":

  • if you choose dev/sda, it will use Grub (Ubuntu's boot loader) to load all systems on this hard drive.
  • if you choose dev/sda1, Ubuntu need to be manually added to drive's boot loader after installation. (for example, you previously have Windows installed on another partition of this drive, you'll need manually add Ubuntu into mbr)


These two could also be relevant to your question:

share|improve this answer
Please accept the answer so others can see that this is solved. – Jo-Erlend Schinstad Nov 20 '12 at 1:23
As to a note, I accepted this answer as it probably would be a proper solution for such problem, although, I encountered another problem that made me unable to choose proper device as I described here:… – HelpNeeder Dec 12 '13 at 12:42

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.