Hacking Backup (and transfer) emuMMC?

[suloku]

Hello,
I have a working emummc (partition based) in a 128 gB card. I'd like to transfer it to a 400gB card and I can't seem to find a way to dump the emummC so I can inject it on my new card.

I've been using DD for windows to dump the partition, but the dumped file doesn't have the correct file size, it is 29 gB and it should be 29.2 gB. I can't seem to find the problem. I've checked via hexadecimal and the dump seems to be correct, it's just not complete for some reason.

My ultimate goal would be to have the following setup:
- Sysnand: 4.1 (clean backup, my fuses are still 4.1 compatible)
- EmuMMC 1 (partition based): clean updated nand for online purposes and cart/eshop games (I know this is not ban proof, but it's the closest to it)
- EmuMMC 2 (partition based): offline "dirty" nand with no worries about nsp, using homebrew, amiibo etc.

Also I'd like to know if it does make any sense to keep sysnand in 4.1 if I'm not going to use pegaswitch as long as I update trough choidujoir. If a coldboot solution finally comes all I'd need to do is backup my current nand, transfer to emummc to keep using it and restore my clean 4.1 backup right? Or will I somehow lose my chance to downgrade to a clean 4.1?

Thanks

 

[MichaelShawJr]

Put the old SD card in ur computer, and make a RAW image of it, then burn the image to your new sd card. Thats what I did and everything worked.

I used this program: https://hddguru.com/software/HDD-Raw-Copy-Tool/

At the first screen where it says source, click the drive that contains your old sd card. For the target, select the one that holds your new sd card. (if you have a way of connecting 2 micro sd cards)

If you can only use 1 sd card, select the source as your old sd card and the target send it to a file. Then when it's done, put the new sd card and put the file as the source and your new sd card as the target.