If you are planning to use this drive only on the XU4, i would recommend formatting the drive to EXT4 with 1 partition. You can do this during 1st run setup by selecting “yes” to “dedicated USB drive setup”.
now the next problem the autoboot option automatically goes to dietpi-cloudshell instead of lxde.
Kodi and LXDE: Desktop are not implemented yet on the Odroid XU4 image. You can run LXDE: Vnc server.
Regarding the autoboot options:
Make sure LXDE: VNC server is installed in DietPi-Software, then select that as the autoboot option. If this is still not being applied after a reboot, please could you send me a bugreport so I can check your settings:
As far as i know, its not possible. I believe its a hardware limitation:
Reboot the board with HDMI cable disconnected and you should see already information going to the 2.2” LCD.
JAVA8 on dietpi possible?
Yes:
apt-get install oracle-java8-installer
to able to run custom application unicentosPOs (requires JAVA8) as autoboot ?
From dietpi-config > autoboot. Select "Console: Automatic login. "
Then you can add the command to run the program in /root/.bashrc after /DietPi/dietpi/login