I tried to start the container but it shows me the following:
~# lxc-start -n d9lxc
lxc-start: tools/lxc_start.c: main: 366 The container failed to start.
lxc-start: tools/lxc_start.c: main: 368 To get more details, run the container in foreground mode.
lxc-start: tools/lxc_start.c: main: 370 Additional information can be obtained by setting the --logfile and --logpriority options.
~# lxc-start -n d9lxc -F
lxc-start: conf.c: instantiate_veth: 2669 failed to attach 'vethRCGOWL' to the bridge 'bt0': Operation not permitted
lxc-start: conf.c: lxc_create_network: 2962 failed to create netdev
lxc-start: start.c: lxc_spawn: 1088 Failed to create the network. lxc-start: start.c: __lxc_start: 1346 Failed to spawn container "d9lxc". lxc-start: tools/lxc_start.c: main: 366 The container failed to start. lxc-start: tools/lxc_start.c: main: 370 Additional information can be obtained by setting the --logfile and --logpriority options.