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Old 09-16-2002, 09:26 PM   #1
frkstein
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Linux vs. Winblows: Prize the Clock


An internal struggle is going on with my machine. I dual boot and everytime I switch between OS's the system clock gets thrown off. Each time I go from Linux to Windows to Linux, the clock loses 4 hours. How can I stop this?
 
Old 09-16-2002, 09:31 PM   #2
DavidPhillips
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set the localtime in linux and windows the same
 
Old 09-16-2002, 09:53 PM   #3
frkstein
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Nope...

I tried adjusting my Linux clock to the correct time. I rebooted, went into the Bios clock to confirm that it had the right time, which it did. I then let it boot into windows. It also had the correct time. I rebooted, checked the Bios clock again, also correct. Let it boot into Linux, -4 hours. I have my system setup for EDT, which should be correct. What is causing the conflict?
 
Old 09-16-2002, 11:30 PM   #4
KnightAbel
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I'd like to know as well

it offset me negative two hours once. only once though, rebooting took care of it.
 
Old 09-17-2002, 02:38 AM   #5
DavidPhillips
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it's likely that the hardwareclock is set to something other than localtime

---SLACKWARE---

run timeconfig

it will set the link in /etc/localtime

and set the proper setting in /etc/hardwareclock

Last edited by DavidPhillips; 09-17-2002 at 02:58 AM.
 
Old 09-17-2002, 02:41 AM   #6
DavidPhillips
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---SLACKWARE---

if you don't have timeconfig

echo localtime > /etc/hardwareclock

date 09170241

Last edited by DavidPhillips; 09-17-2002 at 02:57 AM.
 
Old 09-17-2002, 02:46 AM   #7
DavidPhillips
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the above is for slack



redhat is different

see the file /etc/sysconfig/clock

set the ZONE="your/zone", UTC=false, and ARC=false


also run hwclock

[root@Firedragon root]# hwclock
Tue 17 Sep 2002 02:44:33 AM CDT 0.043256 seconds

Last edited by DavidPhillips; 09-17-2002 at 02:52 AM.
 
Old 09-17-2002, 02:58 AM   #8
Ztyx
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You haven't set up your clock to automatically sync with a time-server somewhere?
 
Old 09-17-2002, 03:00 AM   #9
DavidPhillips
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Also Mandrake is the same as redhat


However instead of a link in /etc/localtime

Redhat and Mandrake copy the zone file to /etc/localtime

you can replace it with a link if you want so it can be confirmed where it points.

Last edited by DavidPhillips; 09-17-2002 at 03:03 AM.
 
Old 09-17-2002, 03:06 AM   #10
DavidPhillips
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One other thing

[root@Firedragon root]# ls /usr/share/zoneinfo/US
Alaska Arizona Eastern Hawaii Michigan Pacific
Aleutian Central East-Indiana Indiana-Starke Mountain Samoa


you would set /etc/sysconfig/clock to look like this

UTC=false
ARC=false
ZONE="US/Eastern"

Last edited by DavidPhillips; 09-17-2002 at 03:07 AM.
 
Old 09-17-2002, 03:14 AM   #11
DavidPhillips
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you can cp /usr/share/zoneinfo/US/Eastern /etc/localtime

or rm /etc/localtime; ln -s /usr/share/zoneinfo/US/Eastern /etc/localtime
 
Old 09-17-2002, 03:20 AM   #12
DavidPhillips
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In Redhat you can also use

setup
 
Old 09-18-2002, 11:53 AM   #13
frkstein
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No luck

Well, I tried everything suggested. I made sure that the hardware clock is set to the correct time. The BIOS clock is showing the correct time, windows clock shows the right time. But when I bring up Linux, the time is always -4 hours. Any other suggestions on how to fix this?
 
Old 09-18-2002, 12:56 PM   #14
Ztyx
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You could make a script which sets the clock +4 hours everytime you start linux, and the opposite when it shuts down...
It's a bad fix, I know, although it's better than nothing.
 
Old 09-20-2002, 07:19 PM   #15
DavidPhillips
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what is your timezone,
what do you get from the date command,
what do you get from the hwclock command


Last edited by DavidPhillips; 09-20-2002 at 07:20 PM.
 
  


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