Hacking Question Problems after reducing USER partition on emummc

Epoxyc

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Hi!
I've been running Atmosphère on emummc on 8.1 without any problem.
Since I don't have anything installed on my emummc, it is a waste of 32GB, I wanted to get the space back by reducing the USER partition.
I decided to rebuild a smaller emummc:
- Found an old 8.0.1 backup (a dd of the emummc partition is not recognized as a valid image, too lazy to make a new backup from Hekate).
- Made a new rawnand.bin (cat BOOT0 BOOT1 rawnand.bin.* > emunand.bin) from it.
- Used this script: https://gist.github.com/ckurtz22/5748f3f761e0a546675f2720a1e5e486 to reduce the size.
- I set USER to 1.0GB (python resize-user.py emunand.bin 1.0 prod.keys).
- Deleted my emummc partition and created a new one slightly bigger than the resized emunand.bin.
- Used dd to write it to the new partition and changed the first sector in emummc.ini.
- It boots normally.

After booting, I am on 8.0.1 as expected, but I notice some slowdowns, the switch freezes quite often for few seconds and I cannot launch any of my games.
I update to 8.1 with Choixdujour to be sure it's not due to the firmware. Same problem, error 2002-1002 when I try to launch a game, even after a reinstall.
I am currently writing back my old emummc image on the SD.

Any idea on what could be the problem?
Does Atmosphere work well with a non-default size USER partition? Is 1.0GB too small?
Have I missed something in the partitioning setup (partition alignment, etc..)?

Thank you in advance.

Edit: Everything works as before after I restored the image, any idea about how to reduce the size?
 
Last edited by Epoxyc,

Epoxyc

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I have seen a few posts on the internet about that, so I thought it was possible and despite the slowdowns and the errors when launching games the system seemed to work fine.
May I ask at which level is the limitation?
 

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