root@localhost:~# snappy install /tmp/wifid_1.3_armhf.snap
Installing /tmp/wifid_1.3_armhf.snap
2016/03/25 16:46:08.773598 security.go:557: [/sbin/apparmor_parser -r --write-cache -L /var/cache/apparmor /var/lib/snappy/apparmor/profiles/wifid.sideload_cli_LThFpTJBfPSW] failed
2016/03/25 16:46:08.773737 security.go:733: Failed to load AppArmor policy for cli: exit status 1
:Cache read/write disabled: interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.)
Warning: unable to find a suitable fs in /proc/mounts, is it mounted?
Use --subdomainfs to override.
2016/03/25 16:46:08.773826 security.go:780: Failed to generate policy for app cli: exit status 1
2016/03/25 16:46:08.786051 security.go:557: [/sbin/apparmor_parser -r --write-cache -L /var/cache/apparmor /var/lib/snappy/apparmor/profiles/wifid.sideload_daemon_LThFpTJBfPSW] failed
2016/03/25 16:46:08.786186 security.go:733: Failed to load AppArmor policy for daemon: exit status 1
:Cache read/write disabled: interface file missing. (Kernel needs AppArmor 2.4 compatibility patch.)
Warning: unable to find a suitable fs in /proc/mounts, is it mounted?
Use --subdomainfs to override.
2016/03/25 16:46:08.786300 security.go:780: Failed to generate policy for app daemon: exit status 1
Name                Date       Version          Developer
canonical-pi2       2016-02-02 3.0              canonical
canonical-pi2-linux 2016-03-07 4.3.0-1006-6     canonical
hello               2016-03-04 IOFJANcJUFcT     sideload 
ubuntu-core         2016-03-07 16.04.0-13.armhf canonical
ulogcatd            2016-02-29 INcOORXgeaYG     sideload 
wifid               2016-03-18 LThFpTJBfPSW     sideload