installScript

please use a new SD card if installing on an arm/sbc device.

install the script's prerequisites

apt-get install wget sudo

download script and execute

wget -O - https://github.com/OpenMediaVault-Plugin-Developers/installScript/raw/master/install | sudo bash

a detailed guide is available for this script as well

https://forum.openmediavault.org/index.php/Thread/28789-Installing-OMV5-on-Raspberry-PI-s-Armbian-SBC-s-i386-32-bit-platforms/