Stop items from running on startup

On the MyCloud you can add commands to a file called /CacheVolume/user-start that will run on startup. This is useful for things like stopping programs from running. So I added items to this file I don’t want running.

Is there a similar file or script that exists on MCM or can one be created?

FWIW this is what I have in the script on the MyCloud
/etc/rc2.d/S85wdmcserverd stop
/etc/rc2.d/S86wdphotodbmergerd stop
/etc/rc2.d/S92wdnotifierd stop
/etc/rc2.d/S20winbind stop
/etc/rc2.d/S85twonky stop
/etc/rc2.d/S60mDNSResponder stop
/etc/rc2.d/S95wdAutoMount stop
/etc/rc2.d/S20nfs-common stop
/etc/rc2.d/S20nfs-kernel-server stop
/etc/rc2.d/S20restsdk-serverd stop
/etc/rc2.d/S61upnp_nas stop

If it is possible with the WD My Cloud I see no reason why it would not work with the WD My Cloud Mirror. However, device-specific adjustments would need to be made. Hopefully an experienced User will be able to assist.

After a little more research I’ve found out a few things:

MCM uses Busybox
Busybox does not use runlevels like other versions of linux
Usually in Busybox any script in /etc/init.d will be run on startup
If you put a script in the /etc/init.d directory it will be erased during MCM reboot (at least that is what happened to me)

Can anyone verify that MCM rebuilds the system directories during a reboot?