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Re: System clock problem

On Mon, Jan 05, 2009 at 10:20:30PM +0100, ?meric Maschino wrote:
> Hi Gang and Happy New Year!
> For several kernel builds now (I don't remember exactly when this first
> appeared), I'm getting the following error at boot time:
> Setting the system clock.
> Cannot access the Hardware Clock via any known method.
> Use the --debug option to see the details of our search for an access
> method.
> Unable to set system Clock to: Mon Jan 5 13:40:36 CET 2008 (warning).
> hwclock --debug gives the following output:
> hwclock from util-linux-ng
> hwclock: Open of /dev/efirtc failed, errno=2: No such file or directory.
> No usable clock interface found.
> Cannot access the Hardware Clock via any known method.
> Is this a known issue on Debian ia64? I can't find a bug report.
> I've tried to insert the efirtc module, but it doesn't seem to exist on
> current linux-image-2.6-mckinley build. The only rtc-related drivers that I
> can find on my system are:
> emeric@longspeak:~$ ls /lib/modules/2.6.26-1-mckinley/kernel/drivers/rtc/
> rtc-ds1307.ko  rtc-ds1742.ko   rtc-m48t86.ko   rtc-r9701.ko     rtc-v3020.ko
> rtc-ds1374.ko  rtc-fm3130.ko   rtc-max6900.ko  rtc-rs5c348.ko   rtc-x1205.ko
> rtc-ds1511.ko  rtc-isl1208.ko  rtc-max6902.ko  rtc-rs5c372.ko
> rtc-ds1553.ko  rtc-m41t80.ko   rtc-pcf8563.ko  rtc-s35390a.ko
> rtc-ds1672.ko  rtc-m48t59.ko   rtc-pcf8583.ko  rtc-stk17ta8.ko
> Should I insert one of those to fix this issue?
> I've experienced a clock-related issue in the past with Fedora ia64 (
> https://bugzilla.redhat.com/show_bug.cgi?id=182597 and
> https://bugzilla.redhat.com/show_bug.cgi?id=182598 for details), but it was
> due to SELinux IIRC. I don't run SELinux on my Debian installation.
> Any input? Thanks.

Ah - this is actually because the common config has switched to
RTC_CLASS drivers, and that cause the other rtc drivers to be
disabled (including efirtc).

I've got a simple rtc-efi module working, I'll try and get it

dann frazier

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