root@OWRT-DEV:/# lxc-start -n myBUSTER --foreground --logpriority TRACE
lxc-start: myBUSTER: cgroups/cgfsng.c: cg_legacy_set_data: 2824 No such file or
directory - Failed to setup limits for the "devices" controller. The controller
seems to be unused by "cgfsng" cgroup driver or not enabled on the cgroup hierar
chy
lxc-start: myBUSTER: cgroups/cgfsng.c: cgfsng_setup_limits_legacy: 2873 No su
ch file or directory - Failed to set "devices.deny" to "a"
lxc-start: myBUSTER: s
tart.c: lxc_spawn: 1828 Failed to setup legacy device cgroup controller limits
lx
c-start: myBUSTER: start.c: __lxc_start: 1999 Failed to spawn container "myBUSTE
R"
lxc-start: myBUSTER: tools/lxc_start.c: main: 308 The container failed to star
t
lxc-start: myBUSTER: tools/lxc_start.c: main: 314 Additional information can be
obtained by setting the --logfile and --logpriority options
REF :
https://github.com/openwrt/packages/issues/15433#