Best way to edit files on the EMMC?

USB burning tool?


USB/SD boot and then mount EMMC?


USB burning tool appears to be one way.

krescue requires the micro SD card and I do not have access to the micro SD card slot. Nor would that be practical to mess with the micro SD every time I need to troubleshoot something.

Thus USB boot and then mounting the EMMC is the only way for me.