Setting up emummc in a nutshell (mostly for linux)
- update atmosphere to 0.9.2 on your microsd. Also ensure that your microSD is MBR, not GPT (gparted calls this msdos).
- if you want to use an old backup, grab those files, you'll need them. If not, boot into hekate, dump raw gpp and boot0/1.
- combine all files on your pc, in the order of boot0, boot1 and rawnand (cat BOOT0 BOOT1 rawnand.bin.00 rawnand.bin.01 rawnand.bin.02 rawnand.bin.03 rawnand.bin.04 rawnand.bin.05 rawnand.bin.06 rawnand.bin.07 rawnand.bin.08 rawnand.bin.09 rawnand.bin.10 rawnand.bin.11 rawnand.bin.12 rawnand.bin.13 rawnand.bin.14 > emummc.bin). Resulting file should be 31276924928 bytes unless you modded your console with a larger (or a smaller) emmc (if you don't know what this is about, then you haven't modded yours).
- create a fat32 partition on your microsd of the same size as the resulting file you just created (can be a bit bigger, do it a bit [100MiB or so] bigger if you want to be safe), dd the combined file to it with