Hyper-V microsoft virtual bios: failed to resume

While performing some maintaince on a hyperV host i encountered the following error “microsoft virtual bios: failed to resume” when starting a guest. After this error the guest disappeared from the hyperV gui.

After some troubleshooting (recreating the configuration manually) i noticed that the vmc configuration xml file always gets hosed up (tags in wrong places). bizarro…

then i saw the little trendmicro icon @ the bottom and I disabled the trendmicro services. After this I was able to start guests and edit guests again.

A great sigh of relief later I found this support article : http://support.microsoft.com/default.aspx?scid=kb;EN-US;961804

“ Creating or starting a Hyper-V virtual machine on Windows Server 2008 or Microsoft Hyper-V Server 2008 may fail with error: 0x800704C8 “

You may experience one of the following issues on a Windows Server 2008 system with the Hyper-V role installed or Microsoft Hyper-V Server 2008:
·         When you attempt to create or start a virtual machine, you receive one of the following errors:
·         The requested operation cannot be performed on a file with a user-mapped section open. (0x800704C8)
·         ‘VMName’ Microsoft Synthetic Ethernet Port (Instance ID {7E0DA81A-A7B4-4DFD-869F-37002C36D816}): Failed to Power On with Error 'The specified network resource or device is no longer available.' (0x80070037).
·         The I/O operation has been aborted because of either a thread exit or an application request. (0x800703E3)
·         Virtual machines disappear from the Hyper-V Management Console

This issue can be caused by antivirus software that is installed in the parent partition and the real-time scanning component is configured to monitor the Hyper-V virtual machine files.

So then i configured the trend micro agents to exclude the necessary folders. Should have known this one in advance :-) …….



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