Sign up ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

I am trying to install Ubuntu 12.10 on a hard-drive that is separate from the one Windows 7 is on. I have two drives in my computer and the second is unused and blank.

However, when I go to install Ubuntu and select the Something Else option, I get kind of paranoid. Last time I did this, it wiped my Windows drive and still installed in the second drive. I do now want a repeat of that.

If someone could give me instructions on dual booting Ubuntu with Windows 7 using two hard-drives that would be great.

share|improve this question

2 Answers 2

You have to select the correct hard drive. Windows is almost certainly on sda and you will want to install on sdb. Install grub into the first hard drive.

If you do not know which drive has windows, use gparted.

share|improve this answer

You can use BIOS to select other HDD as primary, then install Ubuntu on it. Then from BIOS you can easily switch in between HDDs and boot into Windows or linux

share|improve this answer
The question is about setting up partitions on a second hard disk drive for the installation of Ubuntu. Selecting a HDD as primary has nothing to do with how a drive is partitioned and switching between HDDs in BIOS to boot either Windows/Linux is a moot point as grub should be able to handle both Windows and Linux even if they are on separate drives, providing they were both installed in UEFI or Legacy mode. – Michael Lindman Mar 22 at 19:57

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.