[CentOS] timekeeping on VMware guests

aurfalien at gmail.com aurfalien at gmail.com
Wed Oct 14 00:44:18 UTC 2009


I had a similar issue with my Xen VMs, both fully virtualized and para  
virtualized.

I followed these dirs and was able to fix it.

Perhaps its applicable to you?

http://www.linux.org.za/Lists-Archives/glug-tech-0905/msg00271.html


On Oct 13, 2009, at 4:34 PM, Ray Van Dolson wrote:

> On Tue, Oct 13, 2009 at 04:31:03PM -0700, nate wrote:
>> Carlos Santana wrote:
>>> Howdy,
>>>
>>> I am having time-drift issues on my CentOS VM. I had referred to
>>> following documentation:
>>> http://wiki.centos.org/TipsAndTricks/VMWare_Server , however it  
>>> didn't
>>> help. I used kickstart for creating this VM and I am listing  
>>> important
>>> steps in ref to timekeeping issue. Any comments or suggestion  
>>> would be
>>> appreciated.
>>
>> [..]
>>> VMware Tools not installed.
>>
>> You should certainly install vmware tools, and enable time sync to
>> the guest. Also don't run an ntp server in a Vmware VM.
>
> This is what I'd always thought, but the VMware KB link[1] referenced
> in the other reply in this thread seems to indicate that best practice
> is to use NTP + kernel w/ clock/divider options (unless it's new  
> enough
> to not need it) and to *not* use the VMware Tools host time sync.
>
> That said, you should certainly still have VMware Tools installed, it
> just sounds like the host time sync is no longer preferred...
>
> Also note that they recommend you remove the local time source in
> ntp.conf...
>
> Ray
>
> [1] http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1006427
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