I'm running ClearOS 6.6 on Hyper-V Server 2012 R2. Prior to 2012 I had been running ClearOS (5.2 and later 6.x) on Hyper-V Server 2008.

Is it possible for you to use the latest version of Hyper-V and ClearOS? When I was running ClearOS on 2008 I know I ran into a number of different compatibility problems (you can find if you search the forums). Microsoft made improvements in the integration between Hyper-V and Linux in the more recent releases so if possible I think you'd save yourself a lot of trouble by getting on the most current versions of both Hyper-V and ClearOS. Over the last few years there were also improvements in how the Linux kernel was integrating with Hyper-V ... another reason I'd recommend being current.

I can't speak to the particular error you're getting. I did run into some problems related to using the Hyper-V console. When I was running ClearOS 6.5 and it upgraded to 6.6 I had no problems with the Hyper-V console. But when I re installed 6.6 on Hyper-V I find that the Hyper-V console is blank. I've been able to work around that problem so I haven't tried to find a solution for it. The error you mentioned might be a variation of this problem I ran into?

From the Hyper-V console you could try entering Alt-F2 which should take you from the ClearOS GUI interface (which seems to have occasional problems being seen in the Hyper-V console and thus cause a blank console screen) into the Linux command line. Depending upon your technical skills you might be able to fix your ClearOS problems from there?

For me the blank Hyper-V console simply meant I had to ensure the Ethernet configuration in ClearOS was setup correctly (which I could correct from Alt-F2). Once that was done I was able to use the web interface to connect to ClearOS and complete the configuration.

Hope this has been of some use to you.

I'm having the exact same error with 6.7 Community under Hyper-V on Server 2012R2; Was there any resolution for this issue?

Given that so many people are running this option under Hyper-V, why is there such a dearth of support for such a configuration?

Why having so much trouble running this on hyper-v? Download http://downloadns.citrix.com.edgesuite.net/10175/XenServer-6.5.0-xenserver.org-install-cd.iso and try again !