make sure script is executed as root

install

@@ -13,6 +13,11 @@
 # https://github.com/armbian/config/blob/master/debian-software
 # https://forum.openmediavault.org/index.php/Thread/25062-Install-OMV5-on-Debian-10-Buster/
 
+if [[ $(id -u) -ne 0 ]]; then
+ echo "This script must be executed as root or using sudo."
+ exit 99
+fi
+
 declare -l codename
 declare -l omvCodename
 declare -l omvInstall=""