Hacking Help with EmuMMC size

[FlamboyantMonkey]

For context I have a 120gb SD card which I used to mod my switch and have since downloaded things onto it. Everything went smoothly but I wanted to download more and realized that I am out of storage already, i realized that my EmuMMC file is taking up almost 60gb on my sd card. (also I made my EmuMMC a raw file and not a partition on my sd card)

I want to know what to do with my EmuMMC file because its taking up an absurd amount of space considering i already have a small sd card. I dont care about going online and would rather have the most space on the SD card. I know the EmuMMC file is a copy of SyMMC and was worried about simply deleting it or moving it to my pc to free up space.

Can someone help me find a way to make the file smaller or let me know if/how i can remove it.

Edit: to make matters worse I just realized that I always boot into SYSMMC CFW and that when I try to boot into EMUMMC CFW it crashes to a 2002-4373 error code in atmosphere. This makes me think wiping and creating a whole new EmuMMC might be the method. Please consider this as well.

 

[Earthshine]

First off, are you downloading nsp files to your sd card? Secondly, if so, are you deleting them after installing? Also, when you say "have since downloaded things onto it......wanted to download more" do you mean you are using the Switches sd card for other purposes too? If so, I would very strongly advise against that if you're removing the sd card from the Switch often and putting it back in. The sd card readers are very fragile and it will break from removing the sd card over and over.

If you no longer want emuMMC and want to use sysMMC for "backups", you can simply delete it because you created it as file based. Just update your hekate_ipl.ini file to remove the option to boot to emuMMC.

 

[FlamboyantMonkey]

I am downloading games to my switch by using tinwoo and NS-USBloader. I use the sd card only for the switch.

Post automatically merged: Dec 21, 2025

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So since i don't boot into emuMMC i can just delete it? Are there any other options i need to apply in hekate, such as disable EmuMMC?

 

[Earthshine]

I am downloading games to my switch by using tinwoo and NS-USBloader. I use the sd card only for the switch.

Post automatically merged: Dec 21, 2025

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So since i don't boot into emuMMC i can just delete it? Are there any other options i need to apply in hekate, such as disable EmuMMC?

Yes, since you created file based emuMMC you can just delete it. You can disable in Hekate if you wish but I do not think it is necessary. I think it may auto-disable if there is no emuMMC but I could be remembering incorrectly. Keep in mind also, that you aren't going to gain any extra space for installing games by removing emuMMC. Your card is still the same size. Once you install all the same stuff you had to sysMMC, you'll still have the same amount of space left on the card.

 

[FlamboyantMonkey]

. Keep in mind also, that you aren't going to gain any extra space for installing games by removing emuMMC. Your card is still the same size. Once you install all the same stuff you had to sysMMC, you'll still have the same amount of space left on the card.

hm, I was under the impression that the EmuMMC was a copy of everything on the sysmmc so instead of having 2 files which are both 60gb and essentially the same thing I would only have one, freeing up 60gb. I know the size of the card won’t increase because it’s a set 120gb with no partitions, but it should have an extra 60gb since I’m deleting a file of that size. Right?

Also, will deleting the emuMMC effect the games downloaded at all?

Sorry for the questions, I’m new to this and don’t want to mess up anything! Thanks a ton!

 

[Hayato213]

You can resize it if you want but there is only so much you can do with 128GB card, if you need more space get a larger card simple as that.

 

[Earthshine]

hm, I was under the impression that the EmuMMC was a copy of everything on the sysmmc so instead of having 2 files which are both 60gb and essentially the same thing I would only have one, freeing up 60gb. I know the size of the card won’t increase because it’s a set 120gb with no partitions, but it should have an extra 60gb since I’m deleting a file of that size. Right?

Also, will deleting the emuMMC effect the games downloaded at all?

Sorry for the questions, I’m new to this and don’t want to mess up anything! Thanks a ton!

You don't need to keep everything on both the sysMMC and the emuMMC. You only need it on one or the other. For example I play all of my online games on sysMMC and all backups with offline play on emuMMC. Depending on your usage, you can delete one of them from the MMC of your choice. Only the initial emuMMC is a copy of the sysMMC, after that games install to one or the other. Not both. One game is not taking double the space unless you intentionally do so.

If you delete the emuMMC it will delete anything you installed to it.

You don't need to apologize for anything.

 

[FlamboyantMonkey]

You don't need to keep everything on both the sysMMC and the emuMMC. You only need it on one or the other. For example I play all of my online games on sysMMC and all backups with offline play on emuMMC. Depending on your usage, you can delete one of them from the MMC of your choice. Only the initial emuMMC is a copy of the sysMMC, after that games install to one or the other. Not both. One game is not taking double the space unless you intentionally do so.

If you delete the emuMMC it will delete anything you installed to it.

You don't need to apologize for anything.

Thank you so much! Your advice worked perfectly, I deleted the file and everything still works. Time to download smash bros and make use of that sweet sweet space