On Friday, April 11, 2008 at 20:18:10 +0200, Michael Grosser wrote:

>>| # hwclock --rtc=/dev/rtc0 --debug
> hwclock: unrecognized option `--rtc=/dev/rtc0'

Indeed this old hwclock from util-linux-2.12r didn't have this option.
However you can instead make /dev/rtc a symlink to rtc0, temporarily
just for the check.

BTW this old hwclock sets the clock always wrongly: If you want to get
some accuracy from your RTC, upgrade.


> Can a possible reason for this problem be that newer chip sets now
> have a High Precision Event Timer (HPET) instead of a PIT and RTC

Possible and most probable. A working /dev/rtc0 would confirm that it's
your case. More precisely this bug is that the traditional /dev/rtc
kernel driver can initialise HPET in a wrong mode. More on this at
<URL:http://bugzilla.kernel.org/show_bug.cgi?id=7014>.


Alain.



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