What does 'update the system' mean for you? On Fri, Apr 17, 2020 at 6:10 AM www <ouyangxuan10@xxxxxxx> wrote: > > > I mean that this configuration can be preserved, even after I update the system, this function can be saved. > > thanks, > Byron > > > > > At 2020-04-17 18:06:15, "Kevin P. Fleming" <kevin@xxxxxxx> wrote: > >Both of those changes will stop the service from being started, even > >when the system is rebooted. You don't need to run these commands > >every time, running them one time will change the system configuration > >and the service will no longer be started. > > > >On Fri, Apr 17, 2020 at 2:52 AM www <ouyangxuan10@xxxxxxx> wrote: > >> > >> hi Kevin , > >> > >> Thank you very much for you help. But how can I save this way of closing time synchronization by command after system boot up? After I update the system, the first time I start it, time synchronization is still enabled by default. It's not appropriate if I close it alone every time. So when I need it start every time, this function is off. > >> > >> > >> thanks, > >> Byron > >> > >> > >> > >> > >> > >> At 2020-04-16 18:28:30, "Kevin P. Fleming" <kevin@xxxxxxx> wrote: > >> >There is no need to modify systemd. > >> > > >> >$ systemctl disable systemd-timesyncd > >> > > >> >That command will stop the systemd-timesyncd service from being > >> >started. It may also be necessary to mask it: > >> > > >> >$ systemctl mask systemd-timesyncd > >> > > >> >On Thu, Apr 16, 2020 at 6:22 AM www <ouyangxuan10@xxxxxxx> wrote: > >> >> > >> >> Dear all, > >> >> > >> >> I want to ask a question,How to modify systemd so that the NTP function is disabled when systemd is first started? > >> >> > >> >> The default state of systend is to synchronize time from NTP. We can use timedatectl command to disable NTP synchronize time. But if I flash the system, the NTP synchronize time function will auto enable. so I want modify the systemd and disable NTP synchronize time in default state. > >> >> > >> >> thanks, > >> >> Byron > >> >> > >> >> > >> >> > >> >> > >> >> _______________________________________________ > >> >> systemd-devel mailing list > >> >> systemd-devel@xxxxxxxxxxxxxxxxxxxxx > >> >> https://lists.freedesktop.org/mailman/listinfo/systemd-devel > >> > >> > >> > >> > > > > _______________________________________________ systemd-devel mailing list systemd-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/systemd-devel