server date time change on every boot

niraj.vara · 05-01-2013, 06:07 AM

HI

I have centos 5.8 everytime when I reboot the system Its time get change to MST or other zone.

then I manually do it by

cp /usr/share/zoneinfo/Asia/Calcutta /etc/localtime

and its showing the IST time.

what sud i required to do solve this issue. !!!

Habitual · 05-01-2013, 07:50 AM

Quote:

Originally Posted by niraj.vara

what sud i required to do solve this issue. !!!

Spell all your words, all the time here when you post.

I don't think cp works but I believe this will:
terminal >

Code:

mv /etc/localtime /etc/localtime.bak 
ln -sf /usr/share/zoneinfo/Asia/Calcutta /etc/localtime

and then

Code:

date

if it's correct. reboot and check it.

IF this is a virtualized host, there may be other bits we'd have to "flip" (further instructions).
If you have rebooted and it doesn't keep, then is this a virtual host?

http://www.centos.org/modules/newbb/...topic_id=12589
http://www.linuxtopia.org/online_boo...time-zone.html

niraj.vara · 05-01-2013, 08:09 AM

HI

Its not a virtual system.

when I have different zone rather than IST afte reboot then I just do the following

cp /usr/share/zoneinfo/Asia/Calcutta /etc/localtime

and it changed with the current IST time.

Habitual · 05-01-2013, 08:12 AM

Quote:

Originally Posted by niraj.vara

HI

Its not a virtual system.

when I have different zone rather than IST afte reboot then I just do the following

cp /usr/share/zoneinfo/Asia/Calcutta /etc/localtime

and it changed with the current IST time.

So, is it fixed or not? I'm busy.If you just

Code:

ln -sf /usr/share/zoneinfo/Asia/Calcutta /etc/localtime

you wouldn't have to cp every time you rebooted.

lleb · 05-01-2013, 12:04 PM

Quote:

Originally Posted by niraj.vara

HI

I have centos 5.8 everytime when I reboot the system Its time get change to MST or other zone.

then I manually do it by

cp /usr/share/zoneinfo/Asia/Calcutta /etc/localtime

and its showing the IST time.

what sud i required to do solve this issue. !!!

is the time correct for MST after the reboot? If not then you might want to look at the CMOS battery on the motherboard. it very well could be dead or dying thus require replacement. not a hard thing to do on most systems.

John VV · 05-01-2013, 12:11 PM

also check if Network Time Server is being used
on the unsupported CentOS 5.8 it is by default
-- PS. 5.8 is unsupported , time up upgrade to CentOS 5.9

set NTS to the time zone you need

lleb · 05-01-2013, 04:27 PM

Quote:

Originally Posted by John VV

also check if Network Time Server is being used
on the unsupported CentOS 5.8 it is by default
-- PS. 5.8 is unsupported , time up upgrade to CentOS 5.9

set NTS to the time zone you need

yup a simple yum -y update will resolve that issue.

John VV · 05-01-2013, 05:36 PM

if you are using the 6x repo ( /6x/$basearch/os/ )a normal update( or upgrade ) will do
but if you are using the default 6.3 ( $releasever/$basearch/os/) in the yum repo line then

Code:

su -
yum releasever=6.4 upgrade

is needed

lleb · 05-01-2013, 06:37 PM

Quote:

Originally Posted by John VV

if you are using the 6x repo ( /6x/$basearch/os/ )a normal update( or upgrade ) will do
but if you are using the default 6.3 ( $releasever/$basearch/os/) in the yum repo line then

Code:

su -
yum releasever=6.4 upgrade

is needed

with the CentOS releases if they are running 5.x or 6.x just a standard yum update will bring you fully to the most current release of that version. so from 5.8 up to 5.9 without issue same goes for 6.3 up to 6.4 without issue.

there might be some issue if you are running RHEL with that type of update, but not with CentOS as it is not a 100% fork of RHEL

sangfroid · 05-02-2013, 09:15 AM

it must be dead cmos battery.... try replacing it ....that would be the first thing i would do