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 one hdd with Ubuntu 12.04, and now I added another one for windows (because I wanna play Day Z =p).

The problem is that the windows installer says it can't partition the hdd (unknown reason).

So I want to use Ubuntu's disk utility to format/partition the hdd, but I don't know exactly what to do (for example, which filesystem does windows 7 need?). Can you help me on this?

share|improve this question
You added a another one!!! you mean a new hdd?! or just a partition?! – user61928 Oct 12 '12 at 8:36
@maythux a new hdd – ChocoDeveloper Oct 12 '12 at 17:15

Hello Chocodeveloper,

you need a partition in FAT - otherwise the Windows-Installer cannot recognize - where to put Windows into. When you dont want to rebuild completely from new and want to keep the Ubuntu - Installation, then you need a live-CD as tool like "knoppix" - and some knowledge about commands: fdisk, cfdisk, mkdosfs (you can find explanations with e.g. man fdisk - in the shell/terminal).

share|improve this answer

Sorry for my inconvenience. Have overseen - that Windows has the spleen always to install and always to boot as first OS on the first partition or harddisk.

share|improve this answer

To use the Ubuntu installation disc:

  1. Insert the Ubuntu installation disc into the CD-ROM and boot the PC with it. During the boot-up process, select “Try Ubuntu without installation".
  2. From the dash, search for Disk Utility.
  3. Choose the HDD in you want to install windows at and then format choosing NTFS as File system.

    Disk Utility

  4. Now restart your PC and install Windows to the new partition (HDD).

    Also you can use GParted to do that.

    You can install GParted by

    sudo apt-get install gparted

    For more info about GParted, check its manual.

share|improve this answer
Sidequestion: Are these all actual physical SSDs listed there? – cauon Oct 12 '12 at 8:53
No its just some mess i did it before – user61928 Oct 12 '12 at 9:04
i change the image for not making confusions for others later – user61928 Oct 12 '12 at 9:08
up vote 0 down vote accepted

I had two separate problems:

  • This particular disk (western digital caviar blue 1tb) uses a different block size, and the disk utility was adding the wrong offset at the beginning of the partition. So I installed gparted, created the partition with it (I used NTFS by the way), and it worked fine.
  • Windows won't install itself unless the target partition is in a disk that is set to boot up first, and it won't tell you why either.

Now I only need to add Windows to grub so I can use both OS.

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.