At odroids forum they say that Omv4 is broken for odroid xu4 is it right? "I've run Omv4 some time and have not had any significant problems: /?
(odroid forum) : "The kernel is broken on Armbian (on XU4), it had a bunch of stack traces on boot up causing a long (88 seconds +) pause that breaks the mounts. OMV images run on top of Armbian. I'm not sure whose fault it is, just that it's broken and you should use something that works for now. " ?