[CentOS] Strange issue with system time being off

[Russell Jones]

Also in case it wasn't clear, I have ran "hwclock --systohc" after
"date" shows the correct time.



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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>>
>> --
>> Craig White ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ craig.white at ttiltd.com
>> 1.800.869.6908 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ www.ttiassessments.com
>>
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