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:

 

[TariqSoftDev]

when you said "it's the disk we will write" it could mean just the "disk name" like "harddiskVolume19" only. Maybe to be less confusing you could add "all the line, including the slashes and question mark") or "this is the link we will write" instead of disk
that's probably me being too strict on writing guides, but I like providing as much information as possible to prevent user errors. I suppose at worse, dd doesn't write anything and it's not dangerous.


thanks for the SD Card answer. I might just use the same card too.

I'd suggest staying far away from Integral 256G cards are they do not work, no matter what you do that SD is just funky as hell; I'll be sure to add it soon, thank you for your input!

 

[Xen0]

Yep; personally I just removed my vol + strap from my modchip so I Only have to press power + vol up to boot cfw.

That´s really unfortunate... AutoRCM is such a nice thing and using the jig (which works about 1 out of 10 tries) everytime I want to switch to emummc seems really annoying. Hope there will be a way around this anytime soon.

 

[henkp]

when you said "it's the disk we will write" it could mean just the "disk name" like "harddiskVolume19" only. Maybe to be less confusing you could add "all the line, including the slashes and question mark") or "this is the link we will write" instead of disk
that's probably me being too strict on writing guides, but I like providing as much information as possible to prevent user errors. I suppose at worse, dd doesn't write anything and it's not dangerous.
....

I support the vision, could be explained in a bit more detail. First time I wound up with a file called harddiskVolume19 of 32gb in the same folder as the input file

 

[Xen0]

With Nyx now.. Is it possible to boot into stock via hektate/RCM? Or what does the launch stock in Nyx do? Because for me nothing happens.

 

[TariqSoftDev]

With Nyx now.. Is it possible to boot into stock via hektate/RCM? Or what does the launch stock in Nyx do? Because for me nothing happens.

Yes; I'm updating the guide either tonight or tomorrow with different config sets too.

 

[Andre993]

hi guys, i have a problmen when try to lunch dd command

C:\Users\DJAnd\Desktop\altro procedimento>dd if=emummc.bin bs=512M of=\\?\Device\HarddiskVolume73 --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 Operation completed

thanks for help

 

[TariqSoftDev]

hi guys, i have a problmen when try to lunch dd command

C:\Users\DJAnd\Desktop\altro procedimento>dd if=emummc.bin bs=512M of=\\?\Device\HarddiskVolume73 --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 Operation completed

thanks for help

Make sure the drive is not being used nor open, also try using the string including volume for "of="

 

[Andre993]

Make sure the drive is not being used nor open, also try using the string including volume for "of="

i also try with volume string of=\\.\Volume{6d577f00-9b52-11e9-9423-9cad971688b1} but tell me the file is open in other process try to reboot the pc

 

[TariqSoftDev]

i also try with volume string of=\\.\Volume{6d577f00-9b52-11e9-9423-9cad971688b1} but tell me the file is open in other process try to reboot the pc

Close file explorer and etc.

 

[Andre993]

Close file explorer and etc.

didn't find
EDIT: now it's start

 

[Andre993]

i just finish, but now when lunch atmosphere give me this error : fatal error [NXBOOT]couldn't parse boot0: not enough space

 

[TariqSoftDev]

i just finish, but now when lunch atmosphere give me this error : fatal error [NXBOOT]couldn't parse boot0: not enough space

You either didn't merge BOOT0/1 with rawnand dump or you set the offset incorrectly.

 

[Andre993]

You either didn't merge BOOT0/1 with rawnand dump or you set the offset incorrectly.

i think my boot0/1 is corrupted because i try to modified the path (emummc_sector =) with wrong numbers and atmosphere give me the error: couldn't find the EmuMMC or eMMC folder
and i merge all backup nand with this path copy /b BOOT0+BOOT1+00+01+02+03+04+05+06+07 emummc.bin

 

[TariqSoftDev]

i think my boot0/1 is corrupted because i try to modified the path (emummc_sector =) with wrong numbers and atmosphere give me the error: couldn't find the EmuMMC or eMMC folder
and i merge all backup nand with this path copy /b BOOT0+BOOT1+00+01+02+03+04+05+06+07 emummc.bin

Try doing it via Hekate Nyx; make a 31.9GB partition then use Nyx to make the EmuMMC; it'll use what's on Sys to do it.

 

[Andre993]

Try doing it via Hekate Nyx; make a 31.9GB partition then use Nyx to make the EmuMMC; it'll use what's on Sys to do it.

ok i try

 

[lordelan]

Alright, what I've got:

1. A (hopefully) clean 5.1 BOOT0/1 + RAWNAND dump
2. A Switch with Atmo and SX OS, that was offline or used 90DNS ever since I started doing unclean things
   
3. No emuNAND yet
4. A 400 gb micro SD card where many games and homebrews are installed to

What I want to achieve:

1. Turning my current hacky sysNAND into an emuEMMC/emuNAND that can be used by both => Atmo AND SX OS
2. Installing L4T Ubuntu on my micro SD card
3. Using my (hopefully) clean 5.1 BOOT0/1 + RAWNAND dump as sysNAND to play online
4. Having hekate/Nyx with the following 4 entries:
   1. Stock (clean sysNAND)
   2. Atmosphère (emuEMMC)
   3. SX OS (emuEMMC, same as 2. of course)
   4. L4T Ubuntu

As far as I understood my steps to achieve this would be the following, please correct me where I'm wrong:

1. Make a BOOT0/1 + RAWNAND dump of my current setup just in case
2. Copy everything from my SD card into a temp folder on my computer as the SD will be formatted
3. Use Etcher to flash the L4T Ubuntu image to my SD card
   • this will obviously format it and create a FAT32 partition and a Linux partition (EXT4?) with the Linux partition being at the end of my micro SD card
   
4. I resize the FAT32 partition on my computer to the maximum possible size that is left on my 400 gb card and make sure it's FAT32 with 32k cluster size
5. I throw the L4T updates and everything from my computer's temp folder to the FAT32 partition
6. I make sure L4T Ubuntu boots fine and is up to date
7. I boot into SX OS boot menu since I want my emuEMMC to be compatible with it and create a partition based emuNAND from there
   • iirc this should create a partition at the beginning of my micro SD card
   • my SD card should look like this now:
   [<- emuEMMC partition ->][<- FAT32 partition ->][<- Linux partition ->]
8. I adjust some settings in some ini files so Atmo can boot into that emuEMMC as well
   • I'm not sure about what exactly I would have to do here but I'll find out by reading more tuts I guess ... however help is appreciated
   
9. I create the 4 entries I wanted to have in Nyx in my hekate config ini file
10. I make sure both (Atmo and SX OS) can boot into the emuEMMC
11. I restore my (hopefully) clean 5.1 BOOT0/1 and RAWNAND dump (in that order?) to my sysNAND, update it with ChoiDujourNX to 8.1.0 and have fun online

Did I forget something? Any suggestions?

 

[lordelan]

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

Hi Tariq, please continue with this.
I really want to know how I can have

• emuEMMC (that can be used by Atmo and SX OS)
  and
  
• L4T Ubuntu on the same SD card and boot into everything (sysNAND, emuEMMC, L4T) from hekate

 

[TariqSoftDev]

Hi Tariq, please continue with this.
I really want to know how I can have

• emuEMMC (that can be used by Atmo and SX OS)
  and
  
• L4T Ubuntu on the same SD card and boot into everything (sysNAND, emuEMMC, L4T) from hekate

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

 

[lordelan]

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

Holy smoke, that'd be awesome!
I've read a few guides now but both things

• flashing the L4T img to SD
  
  and
  
  
• creating an emuNAND partition from SX OS boot menu

are each wiping the full SD card in the process so I can't figure out how to setup both at the same time.
You'd be my hero!
So if you could write a guide how to setup an emuNAND for both (Atmo and SX OS) and install L4T Ubuntu on the same SD card, you would make my day year!

 

[lordelan]

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

A small hint on how to do the partitioning would be a good start maybe.

 

[TariqSoftDev]

A small hint on how to do the partitioning would be a good start maybe.

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