Hello, I have a similar issue, related to cgroups as well: after a recent update, I cannot start my LXC containers anymore.
This is how I generally start one of my LXC containers, called arch: # lxc-start -n arch I add the -F switch to get the following more detailed error log: lxc-start: arch: cgroups/cgfsng.c: cg_legacy_set_data: 2678 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 hierarchy lxc-start: arch: cgroups/cgfsng.c: cgfsng_setup_limits_legacy: 2745 No such file or directory - Failed to set "devices.deny" to "a" lxc-start: arch: start.c: lxc_spawn: 1896 Failed to setup legacy device cgroup controller limits lxc-start: arch: start.c: __lxc_start: 2074 Failed to spawn container "arch" lxc-start: arch: tools/lxc_start.c: main: 306 The container failed to start lxc-start: arch: tools/lxc_start.c: main: 311 Additional information can be obtained by setting the --logfile and --logpriority options I tried tinkering a little with the cgroups-related options in my container configuration, but that had zero impact on the error message. - Sergiu
