You may want to start using the actual build/image file intended for the Raspberry 2/3, and not the file intended for Intel x86-64 machines.We also now have a fancy installer which can do the hard work for you: LibreELEC USB-SD Creator! – LibreELEC
SWEET! Thanks so much...worked like a charm... 
I am going thru installing LibreELEC-Generic.x86_64-7.0.2.img on my RPi 3b and keep getting this in terminal
Ralphs-Mac-mini:~ BERTS$ sudo dd if=LibreELEC-Generic.x86_64-7.0.2.img of=/dev/rdiskx bs=4mdd: LibreELEC-Generic.x86_64-7.0.2.img: No such file or directoryRalphs-Mac-mini:~ BERTS$ sudo dd if=LibreELEC-Generic.x86_64-7.0.2.img of=/dev/rdisk3 bs=4mdd: LibreELEC-Generic.x86_64-7.0.2.img: No such file or directoryRalphs-Mac-mini:~ BERTS$
It downloaded to the downloads folder on my MAC...not sure where terminal needs to locate it or if I need to move it...
Any help would be greatly appreciated...
