I have no idea why it comes up so far off,  but do you have setupntp in
your postscripts.  At least that should help realign it over time.
It does assume you have setup the MN as a ntp server.

Lissa K. Valletta
2-3/T12
Poughkeepsie, NY 12601
(tie 293) 433-3102





From:   Russell Jones <[email protected]>
To:     <[email protected]>
Date:   08/09/2012 05:59 PM
Subject:        Re: [xcat-user] Time issues with some stateless IBM nodes






On 09.08.2012 16:51, Russell Jones wrote:


 Hi all,

 I am having an issue with time on some CentOS 5.2 dx360 M2 nodes.
 Whenever the node boots up, it's system time is consistently 5 hours, to
 the second, behind the hardware clock. In addition, it states at the top
 during bootup "Could not access the hardware clock via any known
 methods", and then right after that sets the system time to be exactly 5
 hours behind the hardware clock.

 Details:

 * BIOS clock is set to local time properly, and maintains its time
 between reboots / power cycles.

 * /etc/localtime is set to Chicago properly

 * /etc/sysconfig/clock contains the following:
 TIMEZONE="America/Chicago"
 UTC=false
 ARC=false

 * /etc/adjtime contains the following:
 0.0    0    0
 0
 LOCAL



 I've ran out of ideas on what is getting left behind that could be
 confusing the system clock. The site table's timezone is set to
 "America/Chicago" as well. I am unsure if this is a CentOS or xCAT
 configuration issue. Any brainstorming ideas on what I could try would
 be greatly appreciated.

 Thanks!



Thought I would add in what the output looks like when this issue occurs:

At boot:

SELinux:  Disabled at runtime.
type=1404 audit(1344531308.511:2): selinux=0 auid=4294967295 ses=4294967295
INIT: version 2.86 booting
                Welcome to  CentOS release 5.3 (Final)
                Press 'I' to enter interactive startup.
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access
method.
Setting clock : Thu Aug  9 11:55:08 CDT 2012 [  OK  ]



In the OS:

[root@system ~]# date
Thu Aug  9 11:56:05 CDT 2012

root@system ~]# hwclock
Thu 09 Aug 2012 04:56:08 PM CDT  -0.333130 seconds

[root@system ~]# hwclock --debug
hwclock from util-linux-2.13-pre7
Using /dev/rtc interface to clock.
Last drift adjustment done at 0 seconds after 1969
Last calibration done at 0 seconds after 1969
Hardware clock is on unknown time
Assuming hardware clock is kept in local time.
Waiting for clock tick...
/dev/rtc does not have interrupt functions. Waiting in loop for time
from /dev/rtc to change
...got clock tick
Time read from Hardware Clock: 2012/08/09 16:56:14
Hw clock time : 2012/08/09 16:56:14 = 1344549374 seconds since 1969
Thu 09 Aug 2012 04:56:14 PM CDT  -0.756991 seconds



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