Ok I got ext3 on a USB. I flash my box with 8.0. I put the USB on the USB slot. Then turn the on. It would show matricom then LE but after that it would go black and just stay black. I use easeUS partition and labeled it libreelec_disk.
Edit lucky I just left it on it took a couple of minutes then krypton loaded up. Now I gotta figure the ssh. Thanks for your work koprajs!
Edit got to run the command through ssh thanks for your help koprajs. I only have one problem. I can't get my keyboard to work. It uses a dongle that plugs into USB it worked before but it don't now.