The 'lxc-init' (a lightweight init process used by lxc-execute in place of
upstart etc) tries to mount /dev/shm during startup. If that fails (for
instance /dev/shm does not exist) then it aborts execution and returns -1. This
is unreasonable as very few applications actually need /dev/shm.
Signed-off-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>