/etc/init/mounted-dev.conf is in mountall 2.53.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29  | # mounted-dev - Populate /dev filesystem
#
# Populates the /dev filesystem from /lib/udev/devices once the temporary
# filesystem mount is in place.
description	"Populate /dev filesystem"
start on mounted MOUNTPOINT=/dev
env MOUNTPOINT=/dev
env container
env LIBVIRT_LXC_UUID
task
script
    # With the /run transition, shm lives there now, but eglibc still looks in
    # /dev/shm. So create a symlink there
    [ -e /dev/shm ] || ln -s /run/shm /dev/shm
    
    if [ "${TYPE}" != "devtmpfs" ]
    then
	cd "${MOUNTPOINT}"
	/sbin/MAKEDEV std fd ppp tun
	# lxc and libvirt containers have set up their own console and ttys
	if [ -z "$container" -a -z "$LIBVIRT_LXC_UUID" ]; then
		/sbin/MAKEDEV console
	fi
    fi
end script
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