[Mageia-dev] Freeze Push: e2fsprogs

[Anssi Hannula]

05.05.2012 19:42, Colin Guthrie kirjoitti:
> 'Twas brillig, and David Walser at 05/05/12 17:15 did gyre and gimble:
>> Colin Guthrie wrote:
>>> This is why the kernel will automatically does the sync for you every 12
>>> minutes when an ntp daemon is running. This is the recommended method.
>>
>> How does the kernel know when an ntp daemon is running in user space?  Does it work with chrony, or only ntpd?
> 
> I don't know the internals. It works with either chrony or ntpd.
> 
>>> So unless we have a proper frame of reference, (user set time, ntp
>>> protocol time) then there should be no manual sync.
>>
>> Does the kernel then sync the hwclock when you change the time manually, including with rdate or ntpdate?
> 
> It won't do it automatically when doing that. It's really up to whatever
> tool changes the date/time to do that as needed I think.

And how could such a tool know if RTC should be set to UTC or local time?

.. or are we expected to patch them to parse /etc/sysconfig/clock for that?


Well, I guess the tool could detect that by looking at the RTC/sysclock
offset as well, though seems a bit hacky...

What is the expected "right way" to do it, if systemd policy is to not
sync on shutdown?

-- 
Anssi Hannula