Some further looking at the systemd side, Bionic no longer carries the override conf (disable-with-time-daemon.conf) in favor of updating each client's systemd unit to use:
Conflicts=systemd-timesyncd.service Conflicts will ensure that the target service is stopped if the current unit is started. So, if ntp or chrony unit were to start, it would stop timesyncd. This is roughly equivalent, however, it does leave timesyncd unit enabled. This means that if something starts systemd-timesyncd.service, it would stop the ntp or chrony service. There may be additional work on each of the time packages to *disable* timesyncd unit when installed such that it won't start. This may not be possible to prevent users from starting timesyncd manually. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1749722 Title: NTP: take into account systemd-timesyncd where present Status in cloud-init: In Progress Status in systemd package in Ubuntu: New Bug description: Currently, the NTP module configures ntpd during cloud-init install by installing and configuring ntpd. ntpd competes with systemd-timesyncd on systemd distros like Ubuntu Xenial. Ideally the NTP module should configure systemd-timesyncd where present, falling back to ntpd where not present. This stops two separate daemons (ntpd and systemd-timesyncd) competing with each other to set the time, where systemd-timesyncd (on Ubuntu at least) has an internal hardcoded compiled in timeserver to fall back on if no timeserver is configured (which is bad, but what can you do). The competing timeserver behaviour is invisible when the machine can see the net, but logs this error constantly when the machine cannot see the net: systemd-timesyncd[527]: Timed out waiting for reply from 91.189.94.4:123 (ntp.ubuntu.com). To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1749722/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
