In https://wiki.archlinux.org/index.php/talk:NFS#NetworkManager-wait- online I found a workaround that works for me (ArchLinux has been using systemd for a long time already):
* create a file /lib/systemd/system/auto_share.service with the following contents: After=NetworkManager-wait-online.service Before=systemd-user-sessions.service * execute the following commands in a terminal: systemctl enable NetworkManager-wait-online systemctl reenable auto_share.service Having done this once, booting and shutdown works fine, even with still mounted cifs shares. It stays the same after system reboot. Even if this workaround will work fine for everyone (?), this bug should be fixed permanently anyhow! -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1577885 Title: 120sec delay during shutdown or reboot with still mounted cifs (via Wifi) Status in network-manager package in Ubuntu: Confirmed Status in systemd package in Ubuntu: Confirmed Bug description: Using Ubuntu 16.04 Desktop with Unity, used the same approach in 14.04 with no issue. I prepare for mounting with the following entry in /etc/fstab my Synology NAS : //192.168.178.61/data /media/server/server_data cifs users,uid=1000,gid=1000,username=xxxxx,passwd=xxxxxx,iocharset=utf8,sec=ntlm,noauto,_netdev 0 After login to unity, I mount it with a bash-script (mount -a) which is called from ~/.config/autostart/myMounts.desktop Doing this, and shuting down or rebooting lead into a very delayed shutdown (round about 2 minutes) Pressing ESC Key, showed that the process stops at the command "umount /media/server ..." I have not tested if this also occurs when I am connected via ethernet. I think it is because the (Wifi)Network is already disabled prior all umounts are done. This issue happens even if I type in a shutdown command into a Terminal or if I choose shutdown form the menue, also if I use the power-button. Failure can be avoided if I umount the network-drives manually previouse to reboot. Interim solution was, to create an alias for "shutdown" like "sh /path/to/umount/script.sh && shutdown" in /etc/bash.bashrc.local. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1577885/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp