Emunand from Sysnand to SD Card

namoi

Junior Member
Jan 1, 2020
13
3
France
Ok, I am pissed of with myself a lot.
I am usually extremely careful and have managed to kept my Sysnand 4.0.1 untainted... until yesterday.

To make it simple, I needed to start from fresh, but this time genius me wanted to shrink my emunand to the minimum size.

Knowing that the only practical way to do it is to create it in sysnand, I did it.
Then Genius me proceeded to move it to the sdcard via the sx payload option.
Genius me then deleted the Sysnand Emunand as it won't be needed (always via SX payload option).
Then Genius me booted to custom firmware... assuming that moving the emunand to the sd then deleting the old one from the sysnand would be enough...
I then updated via choix and DISABLED as usual the AutoRCM feature as I am on emunand and don't like AutoRCM because of the potential battery drain....

Well I was deeply f**ked when I later realized looking at my SD card that the Emutendo folder wasn't here... I just had updated my sysnand to 9.1.0 without autoRCM which means fuses burn... meh....

So I cleaned the mess as far as i could using Haku33 tool and a Recovery Mode + Initialyze. I am currently in the process of performing backup of this "more or less" clean 9.1.0 Nand (knowing my switch never was connected to Internet) and deleting my now useless preciously kept pristine 4.0.1 backup...

So... I would like to know where I f**ked. What should I do to create a 5GB emunand in sysnand THEN move it to the SD card and use it as the effective Emunand.

Thanks for any insight as I don't want to go through this pain a second time
 

Hackerjac

The Minifigure
Staff member
Troll Eating Dogs
Jun 2, 2010
1,332
108
Denmark
Iirc you can't boot a resized emunand from SD card
 

optantic

VIP Member
May 2, 2010
622
48
Suggestion: you could install your most favorite or frequent play games to emunand storage there is no need to waste time doing all those resizing stuff
 

Alchemy.Gaming

Staff member
Top TX Brass
Mar 11, 2019
184
43
US
Suggestion: you could install your most favorite or frequent play games to emunand storage there is no need to waste time doing all those resizing stuff
I second this. There's really no need to be resizing your emuNAND when it only takes up less than the 5GB you want it to be. When you install to "System storage" while in emuNAND, you are actually installing to the 25+ GB of free space on that NAND image you put on the SD card. No reason to not use that space.
 

namoi

Junior Member
Jan 1, 2020
13
3
France
Thanks, but the idea was to move the resized emunand BACK to the SD Card. But tbh I still don't know how to do it safely.
I know how to move it to the SD, I know how to delete it from the Sysnand (all via SX payload options), but I don't know how to activate the moved emunand in the SD Card.
 

imprezgc8

Bannnnnn-Kai!
Staff member
Troll Eating Dogs
Nov 26, 2007
2,424
138
The Cloud
SD's are pretty cheap atm. While it is "wasted" space if you don't install anything within it, it's not that big a deal.

If you really must have a smaller emunand, the only way I can think of to do it (and it will take more time than it's worth imo), make a fresh clean backup of you sysnand if you can (or just a fresh one) -> Create an emunand of your desired size on your sysnand with the SX Bootloader-> use the migrate feature in the SX Bootloader to move it to your SD card -> restore you clean nand if you are even able to make a clean nand backup.

Should work fine, but again the amount of time wasted doing this is not really worth the 32gb "wasted" space on your SD.
 

namoi

Junior Member
Jan 1, 2020
13
3
France
That is what I did in the first place but the migrated Emunand didn't kicked in after I deleted the one from the Sysnand.

Well ultimately I ended by creating the Emunand in the Sysnand and kept it here as I don't go online anyway. It is faster too and NXMtp, which I heavily use, seems to be much more stable.

Thanks guys :D