Re: Wake-up from suspend time change
On Sat, 2005-05-28 at 11:05 +1000, Benjamin Herrenschmidt wrote:
> On Fri, 2005-05-27 at 17:00 -0700, Adam Done wrote:
> > I have been able to correlate my dates from dual booting into OS X and
> > Linux to have the same date. Now after putting the 15" PB to sleep
> > using 2.6.11.9 kernel my date changes to UTC time and resets its self
> > when rebooted. This is bad because it does through off all my logs
> > until I reset the time manually or reboot. Has anyone else seen this
> > before?
>
> Hrm... Afaik, OS X is agnostic to the timezone stored in the pram (which
> is obsolete). Ideally, you should clear that value to 0 and have the
> real time clock be in UTC.
I had hwclock daemon started when booting into Linux and upon shutdown
and restart it saved the data and noticed that it was set to UTC but
when I booted in OS X (for digital imaging) the time was off by the hrs
from UTC. So I removed the hwclock daemons from starting and then used
hwclock --localtime --hctosys or was it hwclock --localtime --systohc (I
can not remember which one work to get the 2 times in sync but they did
work for that part.)
Now, clearning by resetting the p-ram would get it back to 'normal' but
then how would i set the clock to utc? I am asuming it is by the same
methods I used before.
It looks like in OS X that I can only set the clock to local time zone
or am I mistaken?
> MacOS 9 used to have the real time clock in local time with an offset in
> PRAM, and that did confuse things. With OS X, you should be able to get
> it sane.
>
> Now, how to reset the PRAM value ? Heh, I remember writing a tool for
> that a while ago though I can't find it anymore :) Going to OS 9 if you
> machine supports it and switching OS 9 time zone to UTC would probably
> do the trick too.
I can reset the PRAM using the comand-option-p-r but I do not have OS 9
on my PB since it is only OS X and Linux or can that be done in OS X?
-Adam and many thanks :)
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