There is a multi-boot software now on the OpenPLi releases, perhaps installing it from the feeds... ? Don't talk about clones on openpli forum, if you ever post there, and talk about last openpli for DM800HD that is 2.1... if you ever ask something. But better is just read other's posts, and often you find the solution.

See : https://forums.openpli.org/topic/69491-openpli-71-and-openmultiboot/

Admin

P.S.: The Team has no experience here, as we all prefer only one image in the flash and not multiboot at all.