Op donderdag 7 december 2017 14:08:56 CET schreef Freek de Kruijf:
> Op donderdag 7 december 2017 01:05:18 CET schreef Stefan Brüns:
> > On Wednesday, December 6, 2017 11:58:16 PM CET Freek de Kruijf wrote:
> > > Op woensdag 6 december 2017 15:58:38 CET schreef Brüns, Stefan:
> > > > On Mittwoch, 6. Dezember 2017 15:23:19 CET Freek de Kruijf wrote:
> > > > > In Raspbian I noticed a packet always included in the image called
> > > > > fake-
> > > > > hwclock. I used the tar.gz file together with a .spec file to
> > > > > generate
> > > > > this
> > > > > packet for openSUSE distributions for systems without a Real Time
> > > > > Clock.
> > > > > 
> > > > > The description is:
> > > > > Some machines don't have a working realtime clock (RTC) unit, or no
> > > > > driver
> > > > > for the hardware that does exist.
> > > > > fake-hwclock is a simple set of scripts to save the kernel's current
> > > > > clock
> > > > > periodically (including at shutdown) and restore it at boot so that
> > > > > the
> > > > > system clock keeps at least close to realtime. This will stop some
> > > > > of
> > > > > the
> > > > > problems that may be caused by a system believing it has travelled
> > > > > in
> > > > > time
> > > > > back to 1970, such as needing to perform file system checks at every
> > > > > boot.
> > > > > 
> > > > > On top of this, use of NTP is still recommended to deal with the
> > > > > fake
> > > > > clock
> > > > > "drifting" while the hardware is halted or rebooting.
> > > > > 
> > > > > Hope this is accepted to be included.
> > > > 
> > > > Does this offer anything beyond what systemd-timesyncd offers?
> > > 
> > > Don't know. I would expect, if this does the same as this package, by
> > > default to be included in images for systems without a Real Time Clock.
> > > I
> > > did not notice such a inclusion, but I struggled with dates Jan 1, 1970
> > > after starting a Raspberry Pi using openSUSE, before NTP finally set the
> > > time proper. This packet sets the time very early in the boot process so
> > > times are beyond times last used before the system went down, at least
> > > after a proper shutdown. After a crash this time might be off less than
> > > one
> > > hour.
> > 
> > systemctl-timesyncd is not enabled by default (probably it should on e.g.
> > the RPi images).
> 
> It definitely should. I made a bug report on it:
> https://bugzilla.suse.com/show_bug.cgi?id=1071763

My latest test with this service on a Rasberry Pi 3B, with tha latest aarch64 
image, shows that it is not working. After a reboot the journal always starts 
with date/times Oct 26 14:29:36 and only after NTP becomes active, which is 
after the network is active, the date/time becomes the current time.

For now fake-hwclock does a better job.

-- 
fr.gr.

Freek de Kruijf
member openSUSE
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