[CentOS] timekeeping on VMware guests

mark m.roth at 5-cent.us
Wed Oct 14 01:58:16 UTC 2009


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.
> 
You want to look at VMware's Best Practices for timekeeping. It says to use 
Linux's NTP, *not* VMware tools.

	mark
> -
> CS.
> 
> -------------------
> # For EL5 virtual machines, Append the following in Grub to help keep
> the clock from drifting
> # and to reduce the interupt requests
> #   32bit: --append="rhgb quiet divider=10 clocksource=acpi_pm"
> #   64bit: --append="rhgb quiet notsc divider=10"
> bootloader --location=mbr
> --md5pass=$1$mXSD1l6mO$BBCk1gYArAATS7dlCQGthN. --append="rhgb quiet
> divider=10 clocksource=acpi_pm"
> 
> %packages --nobase
> # Other packages not listed here
> # ntp was installed
> ntp
> 
> ### Add step-tickers ###
> cat > /etc/ntp/step-tickers <<\EOF2
> 0.centos.pool.ntp.org
> 1.centos.pool.ntp.org
> EOF2
> ### End of step-ticker file ###
> --------------------
> 
> # Applied patch mentioned on CentOS page
> # http://wiki.centos.org/TipsAndTricks/VMWare_Server
> patch --verbose -b -l -i /root/ntp.patch
> 
> --------------------
> 
> VMware Tools not installed.
> 
> --------------------
> 
> Thanks,
> CS.
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> 


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