[CentOS] Strange issue with system time being off

[m.roth at 5-cent.us]

Russell Jones wrote:
> Also in case it wasn't clear, I have ran "hwclock --systohc" after
> "date" shows the correct time.
>
Please don't top post.

Here's a question: run hwclock, then, when you reboot, go into the BIOS,
and see what the time is.

      mark
>
>
> On Thu, Aug 9, 2012 at 3:30 PM, Russell Jones <arjones85 at gmail.com> wrote:
>> Craig,
>>
>> Let me clarify. I correct the time, and both "date" and "hwclock" both
>> show the correct time. I reboot the server and "date" is again 5 hours
>> slow.
>>
>>
>>
>>
>>
>> On Thu, Aug 9, 2012 at 3:22 PM, Craig White <craig.white at ttiltd.com>
>> wrote:
>>> until you set your clock so that 'date' gives the right time, don't
>>> bother doing anything else. Once you get it set, then execute the
>>> hwclock --systohc
>>>
>>> Craig
>>>
>>> On Aug 9, 2012, at 1:08 PM, Russell Jones wrote:
>>>
>>>> Thanks, I tried again, rebooted, still 5 hours off slow. The second I
>>>> do "hwclock --hctosys" the time is fine. That's silly to have to do
>>>> that though, I feel like I am missing a configuration parameter
>>>> somewhere.
>>>>
>>>>
>>>>
>>>> [root at nod705 ~]# date
>>>> Thu Aug  9 10:06:36 CDT 2012
>>>>
>>>> [root at nod705 ~]# hwclock
>>>> Thu 09 Aug 2012 03:06:39 PM CDT  -0.437183 seconds
>>>>
>>>>
>>>> [root at nod705 ~]# cat /etc/sysconfig/clock
>>>> # The ZONE parameter is only evaluated by system-config-date.
>>>> # The timezone of the system is defined by the contents of
>>>> /etc/localtime.
>>>> ZONE="America/Chicago"
>>>> UTC=false
>>>> ARC=false
>>>>
>>>>
>>>>
>>>> [root at nod705 ~]# cat /etc/adjtime
>>>> 0.0     0       0.0
>>>> 0
>>>> LOCAL
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Thu, Aug 9, 2012 at 2:56 PM, Craig White <craig.white at ttiltd.com>
>>>> wrote:
>>>>>
>>>>> On Aug 9, 2012, at 12:33 PM, Russell Jones wrote:
>>>>>
>>>>>> Hi all,
>>>>>>
>>>>>> I am having an issue with some older CentOS 5.3 servers. Every time
>>>>>> the server boots, it gives the error "Cannot access the hardware
>>>>>> clock
>>>>>> by any known method", and then promptly sets the time 5 hours behind
>>>>>> the hardware clock, down to the second.
>>>>>>
>>>>>> After the system is up. "hwclock" works fine. hwclock --debug does
>>>>>> not
>>>>>> show any error at all.
>>>>>>
>>>>>> The hardware clock is configured in local time. /etc/sysconfig/clock
>>>>>> is set to UTC=false and ZONE="America/Chicago". /etc/localtime is a
>>>>>> copy of Chicago's zone file. /etc/adjtime is configured with "LOCAL"
>>>>>> as the third row. I am at a loss as to what is causing this.
>>>>>>
>>>>>> Any assistance is appreciated! Thanks!
>>>>> ----
>>>>> Chicago is GMT +5 if I recall correctly so it would seem that perhaps
>>>>> a previous install used UTC=true to set the hwclock
>>>>>
>>>>> after you get the time set (date -s "08/09/2012 14:54:00" or
>>>>> whatever) then set the hwclock to system time
>>>>>
>>>>> hwclock --systohc
>>>>>
>>>>> Craig
>>>>>
>>>>> _______________________________________________
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>>>>> CentOS at centos.org
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>>>
>>> --
>>> Craig White ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>> craig.white at ttiltd.com
>>> 1.800.869.6908 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>> www.ttiassessments.com
>>>
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