A cross platform tool to backup rednand from your sdcard.
Run sudo ./unandmgr 8G/32G (your nand size) read/write (read from sd to file of write from file to sd) input (either the sdcards block device in read mode or the path to the backup in write mode) output (either the location wou want to backup youyr sd to in read mode or the sdcards block device in write mode)
sudo ./unandmgr 32G read /dev/sdg ~/rednand.img
to read the rednand to ~/rednand.img on a 32GB wiiu
sudo ./unandmgr 32G write ~/rednand.img /dev/sdg
to write ~/rednand.img onto the sd on a 32GB wiiu
Run make in the projects directory.
or download it from the AUR at https://aur.archlinux.org/packages/unandmanager/
Windows : No
Linux : Yes
MacOS: Yes
The format is a raw copy of sector 2 to the beggining sector of the first fat32 partion