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I'm trying to install Windows Server 2008 on a Hyper V system. However, I keep getting the error "Windows cannot be installed on this disk" whenever I try to install Server 2008 R2 within Hyper-V

I'm trying to install Windows Server 2008 on a Hyper V system. However, I keep getting the error "Windows cannot be installed on this disk" whenever I try to install Server 2008 R2 in the Hyper-V environment.

I already have three other instances of Windows Server 2008 R2 installed using Hyper-V.

Now I am trying to install two more instances of Windows Server 2008 R2 in this existing Hyper-V environment.

Since I have already used up all of the IDE drives, I am using SCSI for these two new instances of Windows Server 2008 R2 being installed in the Hyper-V environment.

When I click on "(show details)" I receive a message that says "The selected disk is offline. To install the disk Windows needs to bring the disk online."

I believe that this issue is being caused by a SCSI configuration error in the Hyper-V environment.

What do I need to do resolve this issue so that I can load these two new Windows Server 2008 R2 in the Hyper-V environment?
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IT Guy
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IT Guy
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Shreedhar EtteCommented:
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Syed Mutahir AliTechnology ConsultantCommented:
The Disk on which the guest OS will be installed has to be a IDE controller

"Since I have already used up all of the IDE drives, I am using SCSI for these two new instances of Windows Server 2008 R2 being installed in the Hyper-V environment."

Do you mean that you are trying to install on a Physical disk of the host system which is on a scsi controller ?

If YES : Then you would :

a) On the HOST System (Disk manager : start > run > diskmgmt.msc) make the disk offline

You will then be able to  use it on a IDE controller in Hyper-V to install your Guest OS

http://blogs.technet.com/askcore/archive/2008/10/24/configuring-pass-through-disks-in-hyper-v.aspx
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