I have this problem as well, or at least a related one. On my system systemd resolves the cycle by disabling NetworkManager, so I have no internet until I systemctl start NetworkManager. Here's the relevant section of the log:
Feb 04 12:17:32 Behemoth systemd[1]: network-online.target: Found ordering cycle on network-online.target/start Feb 04 12:17:31 Behemoth mtp-probe[583]: bus: 2, device: 4 was not an MTP device Feb 04 12:17:32 Behemoth systemd[1]: network-online.target: Found dependency on NetworkManager-wait-online.service/start Feb 04 12:17:33 Behemoth nvidia-persistenced[684]: Started (684) Feb 04 12:17:32 Behemoth systemd[1]: network-online.target: Found dependency on basic.target/start Feb 04 12:17:33 Behemoth nvidia-persistenced[684]: Failed to query NVIDIA devices. Please ensure that the NVIDIA device files (/dev/nvidia*) exist, and that user 121 has read and write permissions for those files Feb 04 12:17:32 Behemoth systemd[1]: network-online.target: Found dependency on paths.target/start Feb 04 12:17:33 Behemoth nvidia-persistenced[684]: The daemon no longer has permission to remove its runtime data directory /var/run/nvidia-persistenced Feb 04 12:17:32 Behemoth systemd[1]: network-online.target: Found dependency on cups.path/start Feb 04 12:17:33 Behemoth nvidia-persistenced[684]: Shutdown (684) Feb 04 12:17:32 Behemoth systemd[1]: network-online.target: Found dependency on sysinit.target/start Feb 04 12:17:32 Behemoth systemd[1]: network-online.target: Found dependency on nbd-client.service/start Feb 04 12:17:32 Behemoth systemd[1]: network-online.target: Found dependency on network-online.target/start Feb 04 12:17:32 Behemoth systemd[1]: network-online.target: Breaking ordering cycle by deleting job NetworkManager-wait-online.service/start This is a regression from 15.04 to 15.10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1487679 Title: Breaking ordering cycle by deleting job nbd-client.service/start To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nbd/+bug/1487679/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
