On Mon, Feb 6, 2012 at 1:46 PM, Dale <[email protected]> wrote: > [email protected] wrote: >> Hi, >> >> to get the correct system time I use ntp-client in the boot process. >> Furthermore in /etc/conf.d/hwclock I set: >> >> # Set CLOCK to "UTC" if your Hardware Clock is set to UTC (also known as >> # Greenwich Mean Time). If that clock is set to the local time, then >> # set CLOCK to "local". Note that if you dual boot with Windows, then >> # you should set it to "local". >> clock="UTC" >> >> # If you want to set the Hardware Clock to the current System Time >> # (software clock) during shutdown, then say "YES" here. >> # You normally don't need to do this if you run a ntp daemon. >> clock_systohc="YES" >> >> # If you want to set the system time to the current hardware clock >> # during bootup, then say "YES" here. You do not need this if you are >> # running a modern kernel with CONFIG_RTC_HCTOSYS set to y. >> # Also, be aware that if you set this to "NO", the system time will >> # never be saved to the hardware clock unless you set >> # clock_systohc="YES" above. >> clock_hctosys="NO" >> >> # If you wish to pass any other arguments to hwclock during bootup, >> # you may do so here. Alpha users may wish to use --arc or --srm here. >> clock_args="" >> >> In the kernel config file I had set: >> >> CONFIG_RTC_HCTOSYS=y >> CONFIG_RTC_HCTOSYS_DEVICE="rtc0" >> >> I would exspect that after a reboot of the system which system time is >> correctly set via ntp-client that the hwclock and system time only >> differ in a small amount of time. >> >> But: >> solfire:/home/mccramer>hwclock >> Mon Feb 6 19:05:11 2012 -0.172569 seconds >> solfire:/home/mccramer>date >> Mon Feb 6 18:49:37 CET 2012 >> solfire:/home/mccramer> >> >> Is there anything else which I have to tweak to acchieve what I want? >> >> Thank you very much in advance for any help! >> >> Best regards, >> mcc >> >> PS: I need a correct hwclock since I want to wake the system via the >> hwclock. >> >> >> >> > > > I ran into some issues when I rebooted and I had to set both > clock_systohc & clock_hctosys to yes. That worked for me at least. One > sets the BIOS at shutdown and the other loads from the BIOS when > rebooting. > > Yours may need something else but if nothing else works, try that.
I think he's trying to depend on the kernel keeping the hw clock in sync with the sw clock, and that part's not working for some reason. It's a reasonable thing to desire, since an unplanned or ungraceful shutdown could miss the sw-to-hw step. -- :wq
