Here is result of "systemctl status lxc@100.service"
root@dc-218:/data-disk/template/iso# systemctl status
lxc@100.service
●
lxc@100.service - LXC Container: 100
Loaded: loaded (/lib/systemd/system/lxc@.service; disabled)
Drop-In: /usr/lib/systemd/system/lxc@.service.d
└─pve-reboot.conf
Active: failed (Result: exit-code) since Tue 2017-09-12 09:47:30 CDT; 1h 5min ago
Docs: man:lxc-start
man:lxc
Process: 4272 ExecStart=/usr/bin/lxc-start -n %i (code=exited, status=1/FAILURE)
Sep 12 09:47:30 dc-218 lxc-start[4272]: lxc-start: tools/lxc_start.c: main: 366 The container failed to start.
Sep 12 09:47:30 dc-218 lxc-start[4272]: lxc-start: tools/lxc_start.c: main: 368 To get more details, run the container in foreground mode.
Sep 12 09:47:30 dc-218 lxc-start[4272]: lxc-start: tools/lxc_start.c: main: 370 Additional information can be obtained by setting the --logfile and --logpriority options.
Sep 12 09:47:30 dc-218 systemd[1]:
lxc@100.service: control process exited, code=exited status=1
Sep 12 09:47:30 dc-218 systemd[1]: Failed to start LXC Container: 100.
Sep 12 09:47:30 dc-218 systemd[1]: Unit
lxc@100.service entered failed state.
Here is result of "journalctl -xn"
root@dc-218:/data-disk/template/iso# journalctl -xn
-- Logs begin at Tue 2017-09-12 08:47:20 CDT, end at Tue 2017-09-12 10:57:15 CDT. --
Sep 12 10:57:11 dc-218 lxc-start[7859]: lxc-start: tools/lxc_start.c: main: 368 To get more details, run the container in foreground mode.
Sep 12 10:57:11 dc-218 lxc-start[7859]: lxc-start: tools/lxc_start.c: main: 370 Additional information can be obtained by setting the --logfile and
Sep 12 10:57:11 dc-218 systemd[1]:
lxc@100.service: control process exited, code=exited status=1
Sep 12 10:57:11 dc-218 systemd[1]: Failed to start LXC Container: 100.