[mythtv-users] Real-time-clock question.

[Chris Anderson]

Thanks for the info, but I think that my bios uses system time, not
utc. I tried setting it with

hwcloc --syslocal utc, and it was off my a few hours, when I re
booted. So I just set it again.

Hopefully the system will boot. This is the first time for this to happen.

But thanks for the help.

On 9/27/06, Bryan Bennetts <bbennetts at blueyonder.co.uk> wrote:
> On Wednesday 27 Sep 2006 17:05, come se fosse antani wrote:
> > the only problem I found is for the BIOS configured to use UTC instead
> > of localtime; in such case, you have to tell your linux box your BIOS
> > is using UTC.
>
> Not necessarily, you can just set you 'mythsettime' script to do the necessary
> conversion from localtime to UTC.  Mine is like this (there is no doubt an
> easier way)...
>
> stella ~ # cat /usr/bin/mythsettime
> # $1 is the redundant --settime switch
>
> # Set the hardware clock to system time here, cause it knackers the alarm
> # functionality.
> hwclock --systohc
>
> # Write the time to myth.time (why - I dunno)
> sudo date -d "1970-01-01 $2 sec" +"%F %H:%M:%S" > /home/mythtv/myth.time
>
> # Now convert that to UTC time (cause I want UTC on the mobo and BST/GMT
> locally)
> sudo date -d "1970-01-01 $2 sec" +"%F %H:%M:%S" > /proc/acpi/alarm
>
> Note if you are lucky enough to have a system where setting the h/w clock
> knackers the alarm func. you need to configure your ntp stuff to not update
> the clock and then rely on the mythsettime script to do it.
>
> Note : I have this hasn't been tested through a summer/winter time change yet
> so it could cease to work correctly.
>
> HTH, Bryan.
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