This guide will show you how to fix EmuELEC Installation Error (Failed to Mount Core…).
You will need to ensure that your SD card has enough space and that it is working correctly, which means it is not corrupted. You have to open the EMu on your PC in your C drive, then copy the slowemmc.dtb file and paste it into the USB drive connected to your PC, which has the EmuElec setup. Right-click on it and click on Rename, and the file’s name should be dtb.image.
Then you need to right-click on the USB drive, click on Eject, and try installing it again. If you are still facing the issue, you have to change your SD card, or you can use another compatible box and run through the first installation phase. Once done, you need to set the correct dtb file and boot up. It will completely fix your issue.
