Ubuntu 16.04无法关闭电源：poweroff.target已禁用
Ubuntu 16.04不会关机。 当我转到屏幕右上角的图标并单击关机时，它不会关闭。 我shutdown -h now运行shutdown -h now ，这就是我得到的：
tanner@tanner-x151x:~$ shutdown -h now Failed to set wall message, ignoring: Interactive authentication required. Failed to power off system via logind: Interactive authentication required. Failed to start poweroff target: Interactive authentication required. See system logs and 'systemctl status poweroff.target' for details. Failed to open /dev/initctl: Permission denied Failed to talk to init daemon. tanner@tanner-x151x:~$ sudo shutdown -h now [sudo] password for tanner: Failed to start poweroff target: Transaction is destructive. 5ee system logs and 'systemctl status poweroff.target' for details. tanner@tanner-x151x:~$ sudo halt now Too many arguments. tanner@tanner-x151x:~$ systemctl status poweroff.target poweroff.target - Power-off Loaded: loaded (/lib/systemd/system/poweroff.target; disabled; vendor preset: Active: inactive (dead) Docs: man:systemd.special(7)
我不知道为什么会发生这种情况或如何解决这个问题。 任何帮助，将不胜感激。
应该通过输入此命令来启用“poweroff.target”的systemd服务来解决此问题：
systemctl enable poweroff.target
这有点残酷，但你可以尝试：
sudo poweroff -f
答案信用在这里： https ： //askubuntu.com/a/788559/580637