I bought a MiSTer Pre-configured Bundle in January 2022 and sadly am just now getting around to playing with it. I tried to use the Downloader script to update it but it said that my software is older than September 2021 so I would need to follow the instructions here to update it:
https://github.com/MiSTer-devel/mr-fusion
I downloaded and unzipped the image and used the following command to copy it to the SD card which completed without error:
dd if=mr-fusion-v2.7.img of=/dev/sdb status=progress
I booted the MiSTer with the card inserted and I got the blue screen and splash screen as expected but nothing from the system after that. After rebooting I don't get the blue screen and splash screen any more. Does anyone know what went wrong or how to fix it?