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I'm trying to get a VM time synced with a 64-Bit Windows 8 host upon host shutdown and startup. Linux Integration Services is installed on the virtual machine and all integration services are enabled and running. The issue is that when the host is gracefully shutdown, the VM is suspending rather than shutting down itself. When the host is then powered on, the guest resumes from it's suspended state and the guest's time is off by the time that the host was powered off. The only way that I can get the VM to match the host is if I have the "Automatic Stop Action" in Hyper-V Manager set to "Turn Off" which isn't good for the database. I'm experiencing this on CentOS 5.6 and CentOS 5.8.

Thank you

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  • Have you tried: hardanswers.net/correct-clock-drift-in-centos-hyper-v ?
    – Brian
    Commented Aug 18, 2013 at 5:34
  • I have not tried this as the issue is with the VM not shutting down gracefully. "Shut down the guest operating system" is selected as the Automatic Stop Action in Hyper-V Manager. I have no time drift, just that when the host shuts down... the VM is being saved instead of shutting down itself. When I manually shut down and then start the guest the time is synced perfectly with the host. Also, it should be noted that viewing messages in /var/log indicate that the guest is not starting or shutting down with the host. I do appreciate the response.
    – amateurstanding
    Commented Aug 21, 2013 at 0:18

1 Answer 1

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It sounds like you dont have the Hyper-V integration services installed. That allows time synchronization between the guest and the host.

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