can NOT get checkfs.sh to execute on boot.

[gman8a]

cat /proc/version
Linux version 4.4.77-rockchip-ayufan-118 (root@e4248ef129ba) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) ) #1 SMP Thu Sep 14 21:59:24 UTC 2017

df -h
Filesystem Size Used Avail Use% Mounted on
udev 459M 0 459M 0% /dev
tmpfs 93M 2.8M 90M 3% /run
/dev/mmcblk1p7 6.7G 1.6G 4.8G 26% /
tmpfs 461M 0 461M 0% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 461M 0 461M 0% /sys/fs/cgroup
/dev/mmcblk1p6 100M 43M 57M 43% /boot/efi
tmpfs 93M 0 93M 0% /run/user/0

I tried all method explained on web. Nothing will work.

Reference links:---------------------------
https://unix.stackexchange.com/questions/123963/how-to-force-fsck-at-every-boot-all-relevant-filesystems
https://askubuntu.com/questions/335242/how-to-install-an-init-d-script
https://askubuntu.com/questions/18802/how-to-correctly-add-a-custom-daemon-to-init-d
https://serverfault.com/questions/472030/how-to-list-services-daemons-started-at-boot-and-check-their-loading-order
https://unix.stackexchange.com/questions/308904/systemd-how-to-unmask-a-service-whose-unit-file-is-empty
https://unix.stackexchange.com/questions/123963/how-to-force-fsck-at-every-boot-all-relevant-filesystems
https://askubuntu.com/questions/218/command-to-list-services-that-start-on-startup
https://www.digitalocean.com/community/tutorials/how-to-configure-a-linux-service-to-start-automatically-after-a-crash-or-reboot-part-2-reference
https://www.digitalocean.com/community/tutorials/the-upstart-event-system-what-it-is-and-how-to-use-it
http://www.trcompu.com/Computers/LinNotes/linux-startup.html
https://serverfault.com/questions/290493/what-is-runlevel-s-on-debian-ubuntu-for
https://unix.stackexchange.com/questions/400851/what-should-i-do-to-force-the-root-filesystem-check-and-optionally-a-fix-at-bo
https://blog.ruanbekker.com/blog/2017/12/09/unmask-a-masked-service-in-systemd/
https://www.tecmint.com/fsck-repair-file-system-errors-in-linux/