Ensure you have a pre-cfw CLEAN NAND backup if you want to use sysnand for online

File based EmuMMC is working but if you use FAT32 it is very limited and heavily bottlenecked, if you decide to use exFAT then it is very unstable and can corrupt your SD card easily; as of now use partition based as file based is very slow/unstable!!

Rewriting guide with NYX in mind alongside quad boot files for that.


Pre-Setup [Win/Linux]

Spoiler

• Dump your NAND via hekate or use a clean dumped nand(you need to dump BOOT0/BOOT1 and rawnand) ENSURE AUTORCM IS TURNED OFF!
• Merge these into one file using:
  
  Linux cmd:
  cat BOOT0 BOOT1 rawnand.bin.00 rawnand.bin.01 rawnand.bin.02 rawnand.bin.03 rawnand.bin.04 rawnand.bin.05 rawnand.bin.06 rawnand.bin.07 rawnand.bin.08 rawnand.bin.09 rawnand.bin.10 rawnand.bin.11 rawnand.bin.12 rawnand.bin.13 rawnand.bin.14 > emummc.bin
  
  Windows cmd:
  copy /b BOOT0+BOOT1+rawnand.bin.00+rawnand.bin.01+rawnand.bin.02+rawnand.bin.03+rawnand.bin.04+rawnand.bin.05+rawnand.bin.06+rawnand.bin.07+rawnand.bin.08+rawnand.bin.09+rawnand.bin.10+rawnand.bin.11+rawnand.bin.12+rawnand.bin.13+rawnand.bin.14 emummc.bin
• If you are using a single file dumped nand then:
  Linux cmd:
  cat BOOT0 BOOT1 rawnand.bin > emummc.bin

Windows cmd:
copy /b BOOT0+BOOT1+rawnand.bin emummc.bin

Setting up EmuMMC[Linux]

Spoiler

1. Format your SD, clear any partitions and etc.
2. Create your normal partition (MAKE SURE IT IS FAT32 AND 32K CLUSTER).
3. Leave enough space to fit the NAND image.
4. Make that last partition FAT32 aswell
   
5. Identify the partition address */dev/xxx
6. Use this command to write your complete emummc image to the EmuNand partition we made earlier:
   sudo dd if=<your_emummc_bin> bs=512M of=<Step 5, partition add> status=progress
7. Once this is done download the latest AMS and Hekate.
8. Download the EmuMMC config and create a folder named "emummc" then paste it there..
9. Use a tool like GParted to find the first sector of the partition holding the EmuNAND
10. Convert the value from step 8 to hexadecimal > just google <number> to hexadecimal ; it should give out a number such as 0x1039 and etc; IF on the case that it gives one like say 800 then it'll be 0x800.
11. SOMETIMES EmuMMC may not work fully with "0x" infront of the sector, it's hit & miss.
    
12. edit the config file in emummc with this value.

Setting up EmuMMC[Windows10]

Spoiler

Install tools:

• https://www.partitionwizard.com/partitionmanager/sd-partitions.html (Has freeware installer at the end, ensure you untick the box)
• https://uranus.chrysocome.net/linux/rawwrite/dd-0.4beta1.exe (Copy this into the folder where you made your complete EmuMMC image, rename it to dd)

Steps:

• Using the partition tool, delete all partitions on the sd (all data on the sd will be gone)
• Create the first partition at the start of the table, make this a Fat32 32K Cluster partition, leave 31GB at the end of the table.
• Format the end partition as FAT32 aswell, cluster size does not matter.
• 
• Using CMD cd into the folder where you have your emuMMC files and dd.
• Figure out what partition you will specificy to DD by using running the cmd dd --list
• 
• As you can see K: is my EmuMMC partition and it is linked to \\?\Device\HarddiskVolume19, this is the disk we will write to via DD.
• Using the CMD dd if=<your_emummc_bin_path> bs=512M of=<Disk we identified on previous step> --progress image your EmuMMC onto the last partition.
• Once the last partition has your EmuMMC, start setting up AMS and Hekate, download Atmosphere CFW and Hekate.
• Copy AMS + Hekate onto your SD
• Download the EmuMMC config and create a folder named "emummc" then paste it there.
• Find your first sector by using the disk tool, right click your EmuMMC partition > properties > partition info > first physical sector.
• Convert the number to hexadecimal by going on google and searching <Number> to hexadecimal ; a value such as 0x492A3900 or etc will show.
• SOMETIMES EmuMMC may not work fully with "0x" infront of the sector, it's hit & miss.
• Open emummc folder on your sd then open the config and paste the hexadecimal number over the existing one.
• Launch hekate then atmosphere, if it is all done right you should be in EmuMMC

Dual/Triple/Quad boot[L4T Ubuntu/Lakka, Stock-Sys, EmuNand]

Spoiler

Rewrite in progress

Notes:

• No I won't sit you through this, the process is already laid out there.
• If you decide to use exFAT I won't really help.
• You can do the partitioning and file merging on windows but I don't know any tool to write the image to a specific partition.
• There is NO such thing as *Cleaning* your NAND, if you don't have a clean backup then bad luck, you can maybe get away with clearing logs if you haven't been online for a long time but even then I wouldn't suggest it; should've made a clean NAND backup, I won't guide you through any of that.

CLICK HERE FOR EMUMMC CONFIG

DISCLAIMER: I am not resposible for you killing your switch, bricking it from the failure to make a NAND backup; I am in no way obliged to provide you personal support nor am I obliged to do anything else; I'm not resposible for you messing up your SD Card either.



Windows guide:

 

[lordelan]

Make youe EmuMMC, make some free space before it which'll be the ext4 using DiskGenius to resize the FAT32 partition

Alright so basically

Make youe EmuMMC

First step: Create emuEMMC with SX OS bootmenu?

make some free space before it which'll be the ext4

So I free up some space (32 gb) before that emuEMMC partition so Ubuntu can format it as EXT4 later?
But the problem is (as far as I know), that if I flash the Ubuntu.img to the card with Etcher it will completely wipe it (including my emuEMMC partition which I just created before).
Or do you know a way around this?

 

[TariqSoftDev]

Alright so basically

First step: Create emuEMMC with SX OS bootmenu?

So I free up some space (32 gb) before that emuEMMC partition so Ubuntu can format it as EXT4 later?
But the problem is (as far as I know), that if I flash the Ubuntu.img to the card with Etcher it will completely wipe it (including my emuEMMC partition which I just created before).
Or do you know a way around this?

You want to take out img 1 from the sd image then write that to the partition.

 

[laz305]

Need some help. Just got a 400gb card and split it and made a 110gb partition. But now I wanna change it to 30gb instead. How do I do that? Cuz when I select format the card it says it’ll all be unallocated and i don’t want that.

 

[lordelan]

You want to take out img 1 from the sd image then write that to the partition.

I see. I pull the files out of the img with some tool and manually put them on that EXT4 partition.
Will try, thanks!

--------------------- MERGED ---------------------------

Need some help. Just got a 400gb card and split it and made a 110gb partition. But now I wanna change it to 30gb instead. How do I do that? Cuz when I select format the card it says it’ll all be unallocated and i don’t want that.

Use DiskGenius or partition magic.

 

[lordelan]

You want to take out img 1 from the sd image then write that to the partition.

Hey, short question
If I...

1. write the L4T img to another SD card with Etcher
2. insert that SD into my Linux computer
3. copy everything from the EXT4 partition of the SD to a temporary folder
4. insert my 400 gb SD into my Linux computer
5. create an EXT4 partition before my emuEMMC partition with GParted
6. copy everything from my temporary folder to the newly created EXT4 partition
7. resize my FAT32 partition to the max with DiskGenius

... would that work?
Or would I have to make the EXT4 image bootable somehow with GParted or DiskGenius?

Sorry to bother you like this.

 

[laz305]

Ok got it working so now my question I think I figured out but need confirmation is I copied everything over from old card to new and when in system emuNAND it doesn’t see the games so I have to reinstall them?

--------------------- MERGED ---------------------------

Also I make a backup of my cartridge can I go online with that without being banned? Can they tell the difference?

 

[lordelan]

Ok got it working so now my question I think I figured out but need confirmation is I copied everything over from old card to new and when in system emuNAND it doesn’t see the games so I have to reinstall them?

You got what working?
emuNAND and Ubuntu on the same sd? If yes, please share your steps.
I'm creating my emuNAND right now from SX OS boot menu.

I think you don't need to install anything again. I hope you backed up all files from your SD card before?
If yes, just take what's inside the backed up Nintendo folder and put that into the Emutendo folder on SD (I guess that's what it was called). Should do the job.

Also I make a backup of my cartridge can I go online with that without being banned? Can they tell the difference?

There are many reports of people not getting banned with it, but:
It's risky and if you plan on installing the dump as an NSP I would highly recommend not to as NSP installations will get you banned in most cases.
Mounting the XCI in SX OS and playing online with that might be fine, but at least you're using a CFW which can also lead to a ban anytime so I wouldn't bother with that tbh but it's up to you.

 

[laz305]

Ok wow now toggle emuMMC just messed me up I can’t get back into Atmos. How do I disable the toggle?

 

[laz305]

Ok wow now toggle emuMMC just messed me up I can’t get back into Atmos. How do I disable the toggle?

Ok somehow I was able to disable it in hekate. I’m done trying to use this. To complicated for me lol

 

[lordelan]

Ok somehow I was able to disable it in hekate. I’m done trying to use this. To complicated for me lol

Oh sad to hear that you gave up on this.

@TariqSoftDev
I created an emuNAND from SX OS (which I can boot into) and my card now looks like this (screenshot from Easus Partition Master):

Where should I create the EXT4 partition for Ubuntu? On spot 1, 2 or 3?
And with which tool should I do that?

 

[lordelan]

Alright I'll update the guide today then; just been busy with some stuff recently but I'm free now.

Ok somehow I was able to disable it in hekate. I’m done trying to use this. To complicated for me lol

I figured it out guys. Everything's working great on my end so far. Here's my guide:
https://gbatemp.net/threads/partition-based-emuemmc-and-l4t-ubuntu-on-the-same-sd-card.543956/

 

[doom95]

Wondering if it's possible to use a custom NAND partition as emuMMC. Repo @ m4xw/emuMMC seems to suggest so. Any guides?

 

[NotWilliamJamesSidis]

This is old now but I can't get the hekate tools to work for me and I had this guide working before.

I'm getting an error when i try to use dd, here's my command and the output


C:\Users\aaboa\Desktop\Nintendo Backup>dd if=emummc.bin bs=512M of=\\?\Device\HardDiskVolume6 --progress
rawwrite dd for windows version 0.4beta1.
Written by John Newbigin <[email protected]>
This program is covered by the GPL. See copying.txt for details
Error native opening file: 0 The operation completed successfully

 

[TariqSoftDev]

This is old now but I can't get the hekate tools to work for me and I had this guide working before.

I'm getting an error when i try to use dd, here's my command and the output


C:\Users\aaboa\Desktop\Nintendo Backup>dd if=emummc.bin bs=512M of=\\?\Device\HardDiskVolume6 --progress
rawwrite dd for windows version 0.4beta1.
Written by John Newbigin <[email protected]>
This program is covered by the GPL. See copying.txt for details
Error native opening file: 0 The operation completed successfully

Run it as cmd as admin and ensure nothing is accessing the drive; e.g using file explorer and etc.

 

[NotWilliamJamesSidis]

Run it as cmd as admin and ensure nothing is accessing the drive; e.g using file explorer and etc.

Yea this was the first thing I tried. Maybe I'm reading resmon wrong tho ill give it another shot

update I restarted Explorer and launched it right as I did and it looks like that worked for a bit but got "Error writing file: 87 The parameter is incorrect"

 

[thatrunks]

@TariqSoftDev

Thank you for your guide.
I followed an additional step before it worked for me.
I calculated the hexidecimal value and had to enter it without 0x.
Then I RCM'ed into Hekate and had to use Migrate emuMMC before it could detect the emuMMC partition and it automatically enabled it.

I also have SX OS' emuNAND as first partition, in between the free SD Space (Fat32) and the last partition is emuMMC.

Working great. Thank you!

--------------------- MERGED ---------------------------

This is old now but I can't get the hekate tools to work for me and I had this guide working before.

I'm getting an error when i try to use dd, here's my command and the output


C:\Users\aaboa\Desktop\Nintendo Backup>dd if=emummc.bin bs=512M of=\\?\Device\HardDiskVolume6 --progress
rawwrite dd for windows version 0.4beta1.
Written by John Newbigin <[email protected]>
This program is covered by the GPL. See copying.txt for details
Error native opening file: 0 The operation completed successfully

What I found is that you can also you this command

dd if=emummc.bin bs=512M of=\\.\DRIVELETTERWITHCOLON --progress

So for example (check with dd --list) your emuMMC partition is the D: drive in the Minitool Partition Wizard
the command would be like;

dd if=emummc.bin bs=512M of=\\.\d: --progress

This worked for me.

 

[lordelan]

@TariqSoftDev
Since you're working on some 2 SD adapter, I can go ahead and setup my second SD card with Android now, right?
And one day in the near sweet future, I'll be able to have both up running in my Switch without the need to swap them but by some kind of hardware switch (lol) before each boot, right?

I'm just wondering how you will be creating and selling them ... but at least you're in London and not the US so it's a bit easier for me to order things from you.

 

[willy101]

How much space do I need for the emummc partition? Am i screwed if im on cfw 8.0.1 and only have a clean nand from 3.0.0?

 

[konamicode89]

I have had my eye on this topic for quite a while, aside from the new modchip being released has there been any new developments on multibooting? Is Linux still required? Or have there been at least parts that can be done on windows?

 

[RHOPKINS13]

I have had my eye on this topic for quite a while, aside from the new modchip being released has there been any new developments on multibooting? Is Linux still required? Or have there been at least parts that can be done on windows?

Linux isn't "required" at all. Many of us that use it are really only using it for the dd command anyway. Depending on what you're trying to accomplish, Multiboot works fine using Hekate or Argon-NX. If you're using a payload dongle, many of them support switching between multiple payloads. It's not too difficult to setup a combination of Atmosphere, Linux, Android, etc. on a single microSD card, but I prefer using separate cards. To me it's easier. I have a 400gb card I use with Atmosphere and I've filled it to the brim, I wouldn't want to have to make separate partitions and cram Android or Linux on it as well.