Made groups to add user to when not Fedora into a variable with an if statement to add 'netdev' to that list if the OS is Debian, due to elementaryOS not having the 'netdev' group

post-inst.sh

@@ -97,10 +97,16 @@ else
 		groupadd --gid 108 lpadmin
 	fi
 
+	groups='audio,cdrom,dip,floppy,plugdev,sudo,video,dialout,lpadmin'
+
+	if [[ "${ID}" == 'debian' ]]; then
+		groups+=',netdev'
+	fi
+
 	usermod \
 		-a \
 		-G \
-		audio,cdrom,dip,floppy,netdev,plugdev,sudo,video,dialout,lpadmin \
+		${groups} \
 		${username}
 fi