Asp.net 5 DNX and DNU not working on Windows Server 2008 R2

I have successfully installed the dnvm commands given here https://github.com/aspnet/home

.

Now I'm trying dnvm upgrade

, but somehow it doesn't work for me. I am getting the latest version from nuget and I can see that it is being generated in my folder .dnx\runtimes

. See below:

C:\Users\Administrator>dnvm upgrade
Determining latest version
Downloading dnx-clr-win-x86.1.0.0-beta4 from https://www.nuget.org/api/v2
Installing to C:\Users\Administrator\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta4
Adding C:\Users\Administrator\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta4\bin to process PATH
Adding C:\Users\Administrator\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta4\bin to user PATH

Updating alias 'default' to 'dnx-clr-win-x86.1.0.0-beta4'

C:\Users\Administrator>dnu

C:\Users\Administrator>

C:\Users\Administrator>dnx

C:\Users\Administrator>

C:\Users\Administrator>dnvm list

Active Version     Runtime Architecture Location                     Alias
------ -------     ------- ------------ --------                     -----
  *    1.0.0-beta4 clr     x86          C:\Users\Administrator\.dnx\runtimes default

      

        
        
        
      

    

dnvm upgrade

works fine? but nothing happens when I type the command dnu

, dnx

, dnu restore

. What am I missing? I am doing this on Windows Server 2008 R2..Net framework 4.5.2.

Update

I just tried to get the latest unstable working environment. When used, the beta6-12085

command dnu

returns an error:dnx.win32.dll could not be loaded. Last error: 87

C:\Users\Administrator>dnvm upgrade -u
Determining latest version
Downloading dnx-clr-win-x86.1.0.0-beta6-12085 from https://www.myget.org/F/aspnetvnext/api/v2
Installing to C:\Users\Administrator\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta6-12085
Adding C:\Users\Administrator\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta6-12085\bin to process PATH
Adding C:\Users\Administrator\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta6-12085\bin to user PATH
Updating alias 'default' to 'dnx-clr-win-x86.1.0.0-beta6-12085'

C:\Users\Administrator>dnu
dnx.win32.dll could not be loaded. Last error: 87