[SOLVED] system clock has its own will

wimbo · Last edited by wimbo on Tue Sep 14, 2004 3:46 pm; edited 1 time in total

hello,

my system clock just doens't want to display the right time. whenever i adjust it, the next day it's earlier (or sometimes) later on my computer than in real life. i'm getiing a bit tired of this.
:cry:

what can i do?

greetz,

wimbo

NeddySeagoon · Posted: Fri Sep 10, 2004 4:58 pm Post subject:

wimbo,

Do you dual boot with Windows?
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NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

wimbo · Posted: Fri Sep 10, 2004 5:07 pm Post subject:

no. i work only with gentoo. always booting the same kernel (2.6.

greetz,

wimbo

drescherjm · Posted: Fri Sep 10, 2004 5:10 pm Post subject:

I have the same problem on all my gentoo boxes. If I don't sync with a time server my clock drifts like 30 minutes (behind) in three days.
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John

My gentoo overlay
Instructons for overlay

weltraumfahrer · Posted: Fri Sep 10, 2004 5:25 pm Post subject:

Hi,

fls · Posted: Fri Sep 10, 2004 5:30 pm Post subject:

can you please post the output of

NeddySeagoon · Posted: Fri Sep 10, 2004 5:37 pm Post subject:

wimbo,

The PC contains two clocks. The BIOS clock, which actually has a pretty good crystal, so it keeps good time. This maintains the time while the PC is off.

When the PC is on, the OS reads the time from this source, then uses the much poorer CPU clock to keep time. Its an interrupt dtiven service and its possible to lose interrupss, which equates to lost time ticks. That doesnt account for your clock being fast ever.

Linux, thinks it knows the time better then the BIOS, and it sets the BIOS clock to system time as it shuts down. This makes the BIOS time wrong. The fix as others have said, is to run ntp as a cron job to sync your time with a time server.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

drescherjm · Posted: Fri Sep 10, 2004 7:54 pm Post subject:

I thought that was the problem as I actually worked on this very problem about 10 years ago on a different unix based os.

wimbo · Posted: Fri Sep 10, 2004 9:25 pm Post subject:

wimbo · Posted: Fri Sep 10, 2004 9:28 pm Post subject:

[quote="weltraumfahrer"]Hi,

wimbo · Posted: Fri Sep 10, 2004 9:31 pm Post subject:

tarkus · n00b Joined: 08 Jul 2004 Posts: 27

emerge ntp && rc-update add ntpd default && rc-update add ntp-client default

I think there's a /etc/conf.d entry too...

wimbo · Posted: Tue Sep 14, 2004 3:01 pm Post subject:

seems still to be a problem. seems that ntpd is running, but it's adjusting my clock to UTC instead of CEST.

greetz,

wimbo

wimbo · Posted: Tue Sep 14, 2004 3:45 pm Post subject:

i solved it! i made a symlink in /etc/localtime to my timezone. (thought i did it that while installing, but may be i forgot)

thx all

wimbo