[ale] Forcing NTPD to set time

[deritchie at earthlink.net]

RTC issues with VMWare can often be resolved with the installation of Vmware tools.
Sent via BlackBerry from T-Mobile

-----Original Message-----
From: Chris Fowler <cfowler at outpostsentinel.com>

Date: Mon, 21 Apr 2008 10:14:16 
To:Jeff Lightner <jlightner at water.com>
Cc:ale at ale.org
Subject: Re: [ale] Forcing NTPD to set time


I've seen RTC issues with Vmware when running multiple virtual machines.
Maybe this is in the free versions like player and server?

On Mon, 2008-04-21 at 10:00 -0400, Jeff Lightner wrote:
> You wouldn't really want it to correct regardless of diff.  It can have
> disastrous results on some running things (especially databases).
> 
> In normal running with ntp setup it shouldn't get to that big a
> difference so you probably want to find out why it is such a difference.
> 
> One thing I've noticed on dual boot setups is that Windoze and Linux
> deal with the hardware clock differently if you've turned on UTC time in
> the BIOS.  It might be similar for VMWare if the virtual machines are
> Windoze.
> 
> I'd recommend:
> 1) Reboot server go into BIOS setup.
> 2) Turn OFF UTC in BIOS clock settings.
> 3) Boot up the VMWare
> 4) Set the system time manually with the date command.
> 5) Start NTP and insure it updates.  (See ntpdate command for quick
> update.)
> 5) Set the hardware clock time with the hwclock command.
> 6) Start the virtual machines and insure they have the correct time.
> 
> -----Original Message-----
> From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of
> Chris Fowler
> Sent: Monday, April 21, 2008 9:13 AM
> To: ale at ale.org
> Subject: [ale] Forcing NTPD to set time
> 
> I've got a VM running at our of our developer's house and I see it can
> access the RTC.  I believe he has more than one VM running on that
> server.   I also see that NTPD will NOT correct the time.  Here is what
> I do in rc.local on that machine to get the time correct
> 
> /etc/init.d/ntpd stop
> /usr/sbin/ntpdate pool.ntp.org
> /etc/init.d/ntpd start
> 
> I've noticed on some machines that ntpd will complain that the diff is
> so bad the time must be corrected manually.  Is there an option to force
> ntpd to set the time regardless of diff?
> 
> Chris
> 
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