Nintendo Switch 32G -> 256G Upgrade Steps for MacOS

switchEMMCUpgradeSteps.txt

Based on this: http://www.nathanbunn.com/NandUpgradeSteps/
using this: https://github.com/ihaveamac/ninfs
and using this: https://github.com/rajkosto/memloader

Using native MacOS tools + NinFS and memloader on the switch.

- Make Backup of 32G NAND
    Use Hekate
- Install 256G NAND
- Restore boot0/1 backups with hekate
- Restore rawnand backup with memload + macOS
    inject hekate > load > payload > memloader > choose emmc > 
    `$ cat /Volumes/NX/backup/XXXXXXX/restore/rawnand.bin.* | sudo dd of=/dev/rdiskX bs=1m`
- ### # Change X to right physical disk form here on out
- Mount the switch NAND presented by memloader
    Use NinFS with sudo
    Running: ['/Applications/ninfs.app/Contents/MacOS/ninfs-bin', 'nandhac', '-f', '/dev/rdiskX’, '/Users/Shared/NAND’, '--keys', '/Users/Shared/keys.txt', '-o', 'allow_other']
    Only need `bis_key_0X` in key file.
    Mount USER.img
- Copy contents out of User partition
    `$ rsync -a -v --progress "/Volumes/NO Name/" ~/backup/ `
    eject disk image
- fix GPT table, move backup to end of disk
    `$ sudo gpt -r show /dev/diskX`
    `$ sudo gpt -r show -l /dev/diskX`
    `$ sudo gpt recover /dev/diskX`
- Resize partition
    `$ sudo gpt remove -i 11 /dev/diskX`
    `$ sudo gpt add -b 5488640 -i 11 -s 483065852 -t 2B777F63-E842-47AF-94C4-25A7F18B2280 /dev/disk3`
- make new FAT32 file system
    mount/unmount the user.dmg again, should show as /dev/diskZ (/dev/diskX+1)
    `$ mount /dev/disk4`
    `$ sudo newfs_msdos -F 32 -v USER -b 16384 /dev/diskZ`
- Restore content
    mount user.dmg again,  should show as /dev/diskZ (/dev/diskX+1)
    `$ rsync -a -v --progress ~/backup/ /Volumes/USER/`