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 2.13.1.1
> 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
accepted.
--
dann frazier
Reply to: