Same issue here on clean 16.04 install. Only happens on wifi devices doesnt seem to affect wired devices. NFS mounts setup via fstab. Unmounting NFS shares before shutdown allows the system to shutdown.
-- 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/1594658 Title: diskless setup with nfs mounted home hangs on shutdown/reboot Status in nfs-utils package in Ubuntu: Confirmed Status in systemd package in Ubuntu: Confirmed Bug description: Ubuntu 16.04 fresh install hangs when shutting down. The system is diskless PXE-booted with a couple of nfs mounted directories including homedir. As I have no persistent storage whatsoever, I don't have any logs, but in debug-shell, running journalctl -f I can see that it hangs at [ *] (1 of 2) A stop job running for Raise Network Interfaces (10s / 1min 30s)Jun 20 20:23:05 $hostname kernel: nfs: server $nfs-ip-address not responding, still trying Jun 20 20:23:05 $hostname kernel: nfs: server $nfs-ip-address not responding, still trying Jun 20 20:23:14 $hostname kernel: nfs: server $nfs-ip-address not responding, still trying Jun 20 20:24:08 $hostname kernel: nfs: server $nfs-ip-address not responding, still trying Second job in "(1 of 2)" is thermald, turning it off does not fix the problem. Also, this counter "(10s / 1min 30s)" stops visually updating. server $nfs-ip-address is not responding, because, all network interfaces are already down at this point. I am not exactly sure why this happens. Looks like there is a wrong ordering of shutdown of systemd services, which bring down interfaces before something nfs-related, but I am not sure if that's the reason of hanging. Workaround that fixes the problem: In /lib/systemd/system/networking.service comment following line: ExecStop=/sbin/ifdown -a --read-environment To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1594658/+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
