update-rc.d(8) enables or disables services, while the ordering of services is handled by insserv(8), and can be customized by editing the LSB header of the service and setting/adding:
In oldest versions, i can do something like this to determine the order:
update-rc.d myservice start 95 2 3 4 5 . stop 70 0 1 6 .
But after Ubuntu 14, i tried this Ubuntu 16.04 (4.4.0-31-generic):
update-rc.d myservice defaults 95 70
And doesn't work, always creates the order defined in the header:
sudo find /etc/ -name ???myservice | sort
Also al try:
update-rc.d myservice defaults any_text_wath_you_want lalala
Ands seems like ignores all the text after "defaults". I don´t know wath it do when my installation order, I do not think that orders previously installed services.