[lxc-users] LXC containers won't start after 15.10 -> 16.04 upgrade

[Daan Willems]

Hi,

I have 15 unprivileged LXC containers, each running from their own
user on the host.

After I upgraded from 15.10 tot 16.04, they won't start anymore:
      lxc-start 20160403212316.178 NOTICE   lxc_conf -
conf.c:lxc_setup:3837 - 'www' is setup.
      lxc-start 20160403212316.178 ERROR    lxc_cgfsng -
cgfsng.c:cgfsng_setup_limits:1690 - No devices cgroup setup for www
      lxc-start 20160403212316.178 ERROR    lxc_start -
start.c:lxc_spawn:1202 - failed to setup the devices cgroup for 'www'
      lxc-start 20160403212316.178 ERROR    lxc_start -
start.c:__lxc_start:1329 - failed to spawn 'www'
      lxc-start 20160403212316.205 INFO     lxc_conf -
conf.c:run_script_argv:367 - Executing script
'/usr/share/lxcfs/lxc.reboot.hook' for container 'www', config section
'lxc'
      lxc-start 20160403212316.707 WARN     lxc_commands -
commands.c:lxc_cmd_rsp_recv:172 - command get_cgroup failed to receive
response
      lxc-start 20160403212321.709 ERROR    lxc_start_ui -
lxc_start.c:main:344 - The container failed to start.
      lxc-start 20160403212321.710 ERROR    lxc_start_ui -
lxc_start.c:main:346 - To get more details, run the container in
foreground mode.
      lxc-start 20160403212321.710 ERROR    lxc_start_ui -
lxc_start.c:main:348 - Additional information can be obtained by
setting the --logfile and --logpriority options.

Any ideas? (Other than migrating to lxd).

-- 
Daan