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I had Windows 7 32 bit on my existing system, but I am planning to install Ubuntu alongside it. So, I just decided to do a fresh installation of both the operating systems.

When I insert the Windows 7 DVD, I can create 3 partitions at maximum, with one being the one where Windows 7 will be installed.

I just wanted to know – do I need to keep some un-partitioned space for Ubuntu to install?

By "unpartitioned space" I mean the space left after creating 3 partitions for Windows 7. I have a 500 GB HDD, so the three partitions I would be creating are 120 GB, 120 GB and 120 GB. The rest is shown as some logical drive, is that unpartitioned space?

Can I install Ubuntu over there? I am pretty sure the space shown as logical won't be available as drives when I log into Windows 7.

Is that space lost or can I use that to install ubuntu?

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Why are you going dual-boot when free Virtual Machine hypervisors such as VirtualBox and VMWare player are available? –  Mike Pennington May 31 '12 at 9:37
    
@MikePennington Because a virtual machine never provides the same performance as a natively running system? That is really not the question here. –  slhck May 31 '12 at 9:37
    
@slhck, with the built-in virtualization on modern CPUs, the virtualization penalty is generally less than 5% unless you are dealing with heavy Network or Disk IO. My question is valid, since VM solutions are much more flexible than a dual-boot scenario –  Mike Pennington May 31 '12 at 9:39
    
I would like to have it installed normally with dual boot. Not a big fan of Virtual Machine to be honest. –  CRM Junkie May 31 '12 at 9:44
    
@CRMJunkie - Yes you need to safe a portion of your HDD for Linux –  Ramhound May 31 '12 at 11:48

1 Answer 1

I just wanted to know – do I need to keep some un-partitioned space for Ubuntu to install?

Yes

By "unpartitioned space" I mean the space left after creating 3 partitions for Windows 7. I have a 500 GB HDD, so the three partitions I would be creating are 120 GB, 120 GB and 120 GB... Can I install Ubuntu over there?

Yes, use the unpartioned space after installing your NTFS partitions for Win7. The ubuntu install CD will guide you and put GRUB on the MBR. GRUB will allow you to switch between windows and linux after POST. The Ubuntu Dual Boot page may be of assistance as well.

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So the space stated as logical will be actually used for ubuntu, right? –  CRM Junkie May 31 '12 at 9:55
    
Yes –  Mike Pennington May 31 '12 at 10:00

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