I am installing Free-BSD latest version on Microsoft Windows Server 2008 R2 over as an host on Hyper-V which is the virtualization technology comes bundled with the product !!
Hope you know about that !!
I have tried the 
FreeBSD-8.2-RELEASE-amd64-disc1.iso
and
FreeBSD-8.2-RELEASE-amd64-dvd1.iso

both have unsuccessful installation results
I have tried installation a couple of times. The dvd works great and shows all the options.
I have tried the installations with standard, Express and custom installation options.
I am choosing to install it in entire disk.

Then under "Install Boot Manager for drive ad0?"
<I think there is some problem here>
I have tried it a couple of times with all the three options> But none of them works

Under Label : I have chosen "Auto Defaults".

Under Distributions i have chosen:
"Developer", "Kern-Developer" and "User"

Media type:
CD/DVD

and then i click commit 

Everything works up till here:

Then it shows the progress bar, Message : "Extracting base into / directory".



In the end this message is shown:
==============================================
Message
Write Failure on transfer! (wrote -1 bytes of 1425408 bytes)
						      (100%)
==============================================

Now if it goes back to the same screen where it says :
"Choose custom installation options"

It is this time that i got this error!!

Earlier it was once when the write was successful and then i rebooted
the machine but that time it was giving strange error after the reboot
saying that there are no Boot manager

Fix: 

I think that FreeBSD is not able to write the boot partitions onto the
disk or not even anything at all.
How-To-Repeat: Please install the latest version of freebsd on and over Hyper-V on windows
2008 R2 as guests.

I have tried to install version 7 over hyper-V and it goes all fine and
then it reboots well , but there is another problem there : I am unable
to do "startx".

Plz help me because i am a freeBSD fan and i want to use this Operation
system as my base (host) Os in future : Like using it with xen.

Please help me so that i can try my hands on FreeBSD