NTP switch in gnome-control-center is broken

Kalev Lember kalevlember at gmail.com
Mon Sep 29 14:00:56 UTC 2014


On 09/29/2014 03:32 PM, Michael Catanzaro wrote:
> Hi,
> 
> Let's decide what to do about
> https://bugzilla.redhat.com/show_bug.cgi?id=1136905
> 
> Long story short: timedated no longer supports NTP clients other than
> timesyncd (the new systemd NTP client). Oversimplifying, the chrony
> developers say that chrony is better than timesyncd, and the systemd
> developers say that timesyncd is better than chrony.
> 
> We need to remove chrony from the default install and figure out what to
> do for users upgrading to F21 (if we do not uninstall chrony, the switch
> will be broken), or patch out the change to timedated, or build systemd
> without timedated and provide our own implementation of it, or patch
> gnome-control-center.

As I understand it, it's a systemd 216 change and as such only affects
rawhide. F21 has systemd 215. No need to panic, not just yet :)

Also, rtcm and I both tried systemd timesyncd NTP support a month ago on
F21 and couldn't get it to actually sync or do anything useful while it
worked fine with chrony. It looked like the newer rawhide systemd 216
had a bunch of fixes in that area though. Some of those might have been
backported to F21 in the mean time, but I'd still prefer playing the
safe card here and sticking with chrony for F21 -- unless we get a
systemd rebase to 216 and are forced to change this, of course.

-- 
Kalev


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