Develop Bugs

How to fix the "0" folder?

Hi I flashed CM 10.1 with twrp, but was created the "0" folder in my sd card. Somebody know how can I fix this problem?
Sent from my Galaxy Nexus using xda app-developers app

Googling helps when trying to find answers...
There are a lot of guides on how to "fix" this. If done CORRECTLY you will have only one 0 folder. You also need to update your recovery to the latest version.
Sent from my Galaxy Nexus using Tapatalk 2

If you are not going to give meaningful help, perhaps it would be better not to say anything.
Sent from my SAMSUNG-SGH-I747 using xda premium

Altaman said:
If you are not going to give meaningful help, perhaps it would be better not to say anything.
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
The irony.
OP. It's a 4.2 thing. Not a problem. Use the search in the future there are dozens of threads about this.

Altaman said:
If you are not going to give meaningful help, perhaps it would be better not to say anything.
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
Give a man a fish and he'll eat for a day. Teach a man to fish...
Sent from my Nexus 7 using Tapatalk 2

Altaman said:
If you are not going to give meaningful help, perhaps it would be better not to say anything.
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
I DID help you.
I WAS going to leave it at the Google part. However, I left it up to you do your own work instead of spoon feeding you.
Sent from my Galaxy Nexus using Tapatalk 2

this isn't a problem as such, this is just a new feature in 4.2.1. so if you create another users a folder called 1 will be created and so on, this is just the user-space of that particular user.

use TWRP recovery

darkshot said:
Hi I flashed CM 10.1 with twrp, but was created the "0" folder in my sd card. Somebody know how can I fix this problem?
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Like the others said it's not necessary an error.
It would be an error if you flash another ROM and you end up with "Emulated/0/0" folder struckture.

For 4.2 roms, Install CWM recovery 6.0.2.3
Backups made after the instilation will be in data/media/clockworkmod.
To see the backup when you usb connect to a computer, you need to move the backup to data/media/0/clockworkmod.
The data/media/0 folder would have already been generated and is your new SD card directory.
CMW now has .tar back ups set as default. This means no more blobs folder and a complete backup is made.
You can select to save using the blobs folder method if you prefer.
So keep in mind if you have a backup using the blobs method that you want to restore, you may have to restore it before installing the latest version of cwm or switch between the .tar and dup methods (untried by me)
D3VIOUS runs a clockworkmod revovery thread on the development section, read the last 3-4 pages and your pretty much set.

darkshot said:
Hi I flashed CM 10.1 with twrp, but was created the "0" folder in my sd card. Somebody know how can I fix this problem?
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
it isnt a "problem" the sdcard format changed in 4.2 due to the multi-user feature being added.. now you have 2 choices
1. flash the latest twrp and you will only have that one "0" folder
2. use the guide linked in my sig to revert back to the old sdcard format and get rid of the "0" folder

Android 4.2.x File Structure Thread

Hey Guys,
So After all of the recent questions and concerns I have seen and answered, I have decided to make a thread to help users understand the new file structure of android 4.2.x. I hope this will help those of you with questions and concerns and make for a smoother transition from 4.1.x and touch wiz roms.
I will break this into three categories........
First I will explain what the file system is and why it is present and how it affects you......
Second is if you haven't yet but are planning on making the jump to 4.2.x.
Third will be if you have already made the jump without doing your homework. (For those of you wondering where your files are, wondering why your sd card was formatted, or cant find your recovery backups..... This section is for you!!)
Section 1.)
What is the new file system and what the hell is this /0 folder?
With Android 4.2, Google introduced multiple users as a new feature. In order to accommodate multiple users, Google is now giving each user their own folder for storage. What happens is 4.2 uses an emulator to make different users and uses the /0 folder as the default users storage on the sd card. It doesn't recognize anything on the root of the sd card only whats in /0. To support multi-user capabilities this will be the norm... for each user, there will be a sequentially numbered folder in /data/media (/data/media/0, /data/media/1)...
And for each user, within Android, this will be symlinked to /sdcard & /storage/sdcard0... for user 1, /sdcard = /storage/sdcard0 = /data/media/0... for user 2, /sdcard = /storage/sdcard0 = /data/media/0...
These are emulated storage points... /data/media/0 = /storage/emulated/0, /data/media/1 = /storage/emulated/1
Without root access, each user will just see /sdcard/ and will not be able to access the other emulated storage points...
In the recovery mode, however, /sdcard is mapped to /data/media which is why you need to navigate to the "0" folder to see your files!
So in order to access your internal storage files they will be in data/media/0. So for example to access the backup location In titanium backup after you flash navigate to data/media/0/TitaniumBackup. (Thanks to ktetreault)
That being said, If you already flashed a 4.2 rom without preparation, your files aren't lost they are just inaccessible they are just not in the proper place for 4.2 to see them.
So now that we have all the technical stuff out of the way...... Lets get into how to either prevent or fix this issue.
Section 2.)
Preparing to flash a 4.2 rom from a touch wiz rom or an aosp 4.1.x based rom.
Okay, so you have touch wiz or aosp 4.1.x of some sort and your ready to try out the goodness of 4.2?
First backup your ext sd card to your pc or if a pc is unavailable (and your willing to take a risk) use a file explorer on your phone such as Es file explorer from the market to transfer the contents of the ext sd card to your internal sd card. I highly suggest avoiding using the phone as some hiccups can occur. I have done it successfully myself but have heard others who have lost their files during transfer because they left the app while it was transferring. If you do use this method DO NOT LEAVE THE APP UNTIL THE FILE TRANSFER IS COMPLETE.
Second Format your ext sd card so we have a clean slate to work with as this will help tremendously to avoid any headaches.
Third Install the latest recovery of your choice. The reason for this is that the older recoveries are not updated for 4.2 and will continuously create a new /0 folder every time you flash a new rom. Follow the instructions to install in the applicable thread.
Thanks to naddict for posting the links.... These are all flashable zips thru recovery
TWRP 2.4.1.0 - http://d-h.st/9cL
CWM 6.0.2.3 - http://d-h.st/jbT
CWM Touch 6.0.2.3 - http://d-h.st/8A9
Fourth Flash the 4.2 rom of your choosing per the instructions of the developers OP in their thread.
Set your phone up as usual and then restore the files from your backup on your pc or move them back from the internal sd card using es file explorer again. Keep in mind that the /0 folder is your new sd card storage. Now you are good to go and enjoy the new features and benefits of 4.2 and not have to search for your files :good:
Section 3.)
Okay so you got overly excited and flashed a 4.2 rom........ OMG!!! All my files are gone!!!! I can't restore any backups and all my precious files have disappeared!! Why was my sd card formatted?????
Relax.... Your files didn't go any where they are exactly how you left them you just can't see them.....
I will walk you thru 4 easy steps to get your files back and put you back on track.
First Make sure you have the latest recovery of your choice. If needed refer to the links posted in section 1. If you don't do this you will see a duplicate /0 folder created every time you flash a new 4.2 rom.
Second You won't be able to find your backups thru recovery. The easiest method I found is to download any touch wiz rom. Wipe your phone completely and then flash the touch wiz rom you downloaded. Reboot and go thru the setup and what not.
Third Now install es file explorer or the app of your choice. Next copy everything from the root of the sd card into the /0 folder that 4.2 had created oh so nicely for you.
Fourth Reboot into recovery and re-flash the 4.2 rom you began with. After going thru the initial rom setup you will see that are of your files are back intact and ready for you to access.
Hopefully this has helped those of you with questions and concerns about upgrading to 4.2.x. If i missed anything please feel free to let me know and ill include it here or address any further questions.
Thanks to:
Sundawg of TBD
Koush Of CWM
Team Win
And All of the devs on xda
Hope I have helped if so feel free to press thanks!!

Thank you for taking the time to write this. This should help a lot of people.
Sent from my SGH-T999 using Tapatalk 2

WhoWhere said:
Thank you for taking the time to write this. This should help a lot of people.
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
No problem. I was answering this a few times recently and I know I was baffled at first. As well I didn't see any other threads regarding this so I figured it may help.
Sent from my SGH-T999 using Tapatalk 2

If i am currently on a 4.1 ROM and don't have an external sd(i only have the internal storage), will the new 4.2 file system affect me when i flash a 4.2 ROM?
So far i have backed up apps+data with titanium backup, and im ready to flash liquid smooth ROM using twrp. I just want to know if after flashing my internal storage contents will still be there and i will be able to restore apps with tb.

Outstanding guide, good work!
Sent from my SGH-T999 using xda premium

This should help a lot of people, nice work! I will add this to the FAQ.

chromium96 said:
If i am currently on a 4.1 ROM and don't have an external sd(i only have the internal storage), will the new 4.2 file system affect me when i flash a 4.2 ROM?
So far i have backed up apps+data with titanium backup, and im ready to flash liquid smooth ROM using twrp. I just want to know if after flashing my internal storage contents will still be there and i will be able to restore apps with tb.
Click to expand...
Click to collapse
No you shouldn't be affected bud I would only suggest getting an sd card just to backup anything important in case of a freak error during flashing or accidental wiping of internal sd.
Sent from my SGH-T999 using Tapatalk 2

Towle said:
This should help a lot of people, nice work! I will add this to the FAQ.
Click to expand...
Click to collapse
Thanks i appreciate you including it in your thread.
Thetenthdr said:
Outstanding guide, good work!
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Thanks a lot took me a little while to get it all together.
Sent from my SGH-T999 using Tapatalk 2

chromium96 said:
If i am currently on a 4.1 ROM and don't have an external sd(i only have the internal storage), will the new 4.2 file system affect me when i flash a 4.2 ROM?
So far i have backed up apps+data with titanium backup, and im ready to flash liquid smooth ROM using twrp. I just want to know if after flashing my internal storage contents will still be there and i will be able to restore apps with tb.
Click to expand...
Click to collapse
Yes, but you will have to set the backup location In titanium backup after you flash to data/media/0/TitaniumBackup
Sent from my SGH-T999 using xda premium

ktetreault14 said:
Yes, but you will have to set the backup location In titanium backup after you flash to data/media/0/TitaniumBackup
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Thanks for informing I'll add that to the op as well.
Sent from my SGH-T999 using Tapatalk 2

this was of great help
When I went to 4.2.1 I did not understand the file system change. I had to use my backup phone for 5 days before I finally got my SMSand MMS and Launcher Pro restored.
Then I wiped and flashed again and it created a new "0" directory. I have been afraid to do anything but dirty flash since.
This finally explains it all and I feel confident in wiping again.
Thank you so much.

GeneLM said:
When I went to 4.2.1 I did not understand the file system change. I had to use my backup phone for 5 days before I finally got my SMSand MMS and Launcher Pro restored.
Then I wiped and flashed again and it created a new "0" directory. I have been afraid to do anything but dirty flash since.
This finally explains it all and I feel confident in wiping again.
Thank you so much.
Click to expand...
Click to collapse
No problem bud that's why I created the thread to help everyone understand and to give you guys a place to ask.
Sent from my SGH-T999 using Tapatalk 2

You rock, thx for the info, looks like it was a lot of work but good idea after so many posts asking about the same thing

lordazoroth said:
You rock, thx for the info, looks like it was a lot of work but good idea after so many posts asking about the same thing
Click to expand...
Click to collapse
No problem it was my pleasure. Hopefully will cut the redundancy lol
Sent from my SGH-T999 using Tapatalk 2

If you are missing your /sdcard/download/ file:
Go to: /mnt/shell/emulated/download/
+Bound for Valhalla!

Valhalla_ said:
If you are missing your /sdcard/download/ file:
Go to: /mnt/shell/emulated/download/
+Bound for Valhalla!
Click to expand...
Click to collapse
Yup that will work but quite an annoying work around Lol that's why I showed you guys how to prevent this or fix it so this won't be needed every time you need a file
Sent from my SGH-T999 using Tapatalk 2

Great work, very informative and easy to read...
Sent from my SGH-T999 using xda premium

unk2009 said:
Great work, very informative and easy to read...
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Hey, quick question, I bounced off another ROM onto liquidsmooth without updating my recovery and ended up with an extra '0' folder, can I move my files out of there and delete it safely?

lordazoroth said:
Hey, quick question, I bounced off another ROM onto liquidsmooth without updating my recovery and ended up with an extra '0' folder, can I move my files out of there and delete it safely?
Click to expand...
Click to collapse
Yup no problem just delete the innermost one without your files and you will be good to go.
Sent from my SGH-T999 using Tapatalk 2

rawdaddymagraden said:
Yup no problem just delete the innermost one without your files and you will be good to go.
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
Pimp, thx a bunch!

[Q] urgent quistion regarding wicked rom please help

].I'm sorry if any of these are dumb question but I'm kinda new to this but if you could please help me it would be greatly appreciated.. so I have wicked rom downloaded to my phone and I believe it is dl to the internal sd. So when I do the wiping that is required to do before flashing... the rom will still be on the internal sd after wipe correct? Also I have the t999 sgs3 but it is unlocked for att. It will still be unlocked right? And when I flash the rom I still put T-Mobile in the set up? Also one more thing how do I know if my phone is ics. Or jb cause I have the v8 jb downloaded I'm sry for all the question I just wanna be 100% before I do this

I'll try to answer a few of them which i can
*wiping won't delete rom files from internal sd
*it'll still be unlocked
*check android version in settings - about 4.0.4 = ics 4.1.x/4.2.x=jb
AFAIK

nikufellow said:
I'll try to answer a few of them which i can
*wiping won't delete rom files from internal sd
*it'll still be unlocked
*check android version in settings - about 4.0.4 = ics 4.1.x/4.2.x=jb
AFAIK
Click to expand...
Click to collapse
Thanks alot bro and mines a 4.1.1

Wait and one more thing so sry. My backup is also saved to the internal sd it'll still be there to right? Using cwm

DJAK5150 said:
Wait and one more thing so sry. My backup is also saved to the internal sd it'll still be there to right? Using cwm
Click to expand...
Click to collapse
Performing a factory reset formats everything but the /data/media/ directory, which contains your internal storage.
Sent from my SGH-T999 using xda premium

LuigiBull23 said:
Performing a factory reset formats everything but the /data/media/ directory, which contains your internal storage.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Ty.. I hope I don't mess this up

DJAK5150 said:
Ty.. I hope I don't mess this up
Click to expand...
Click to collapse
If you're worried about losing any if your important content, including your nandroid backups, I recommend either transferring your content to a flash drive or to your pc that way you'll always have it and know where to look for it in case anything were to go wrong on your phone. You can also upload your content to a cloud but that can take a bit more time. If this helped please hit thanks as it really does help my status here on XDA.
Sent from my SGH-T999 using xda premium

LuigiBull23 said:
If you're worried about losing any if your important content, including your nandroid backups, I recommend either transferring your content to a flash drive or to your pc that way you'll always have it and know where to look for it in case anything were to go wrong on your phone. You can also upload your content to a cloud but that can take a bit more time. If this helped please hit thanks as it really does help my status here on XDA.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
How do I tranafer it to my comp? With sgs3 toolbox?

DJAK5150 said:
How do I tranafer it to my comp? With sgs3 toolbox?
Click to expand...
Click to collapse
micro usb? most common and basic way to transfer content.
Sent from my SGH-T999 using xda premium

Better yet how do I get into my external sd card so I can delete stuff to make room to save a nandroid to it

DJAK5150 said:
Better yet how do I get into my external sd card so I can delete stuff to make room to save a nandroid to it
Click to expand...
Click to collapse
/mnt/extSdCard/
pretty straightforward
Sent from my Nexus 4 using xda premium

What's that mean

DJAK5150 said:
What's that mean
Click to expand...
Click to collapse
Open up any root browser and navigate to mnt > extSdCard
As it shows, that is your external sd card
Sent from my Nexus 4 using xda premium

LuigiBull23 said:
Open up any root browser and navigate to mnt > extSdCard
As it shows, that is your external sd card
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
So it shows that I have a back up I made with twrp so would I beagle to use that back up even if I'm using cwm

DJAK5150 said:
So it shows that I have a back up I made with twrp so would I beagle to use that back up even if I'm using cwm
Click to expand...
Click to collapse
No. Nandroids are recovery dependant. You would need to revert back to TWRP in oder to restore that backup and vice versa if a backup was made in CWM. Install GooManager from the Play Store, hit menu, then select "Install Openscriptrecovery" to flash the latest TWRP.
Sent from my SGH-T999 using xda premium

DJAK5150 said:
Better yet how do I get into my external sd card so I can delete stuff to make room to save a nandroid to it
Click to expand...
Click to collapse
You can either delete them from a file explorer from storage/extSdCard or just pop your SD card into a micro SD adapter if you have one and delete files from your computer
Sent from my SGH-T999 using xda premium

re: Samsung android training
serio22 said:
You can either delete them from a file explorer from storage/extSdCard or just pop your SD card into a micro SD adapter if you have one and delete files from your computer
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
How much are you getting paid for all this? LOL

LuigiBull23 said:
No. Nandroids are recovery dependant. You would need to revert back to TWRP in oder to restore that backup and vice versa if a backup was made in CWM. Install GooManager from the Play Store, hit menu, then select "Install Openscriptrecovery" to flash the latest TWRP.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
But don't I have to use cwm to flash wicked?

DJAK5150 said:
But don't I have to use cwm to flash wicked?
Click to expand...
Click to collapse
You can use CWM or TWRP. What he's saying is you cannot recover a TWRP backup through CWM or vice versa.
So if you plan to use CWM, make a backup with CWM so you can recover in case something goes wrong. Your TWRP backup will not work with CWM.
Wicked is a great rom, it's what I use everyday.
Sent from my SGH-T999 using xda app-developers app

[Q] TWRP issues

I have searched around and cant find a answer for this. Its probably something simple that Im overlooking.
When I DL a rom,theme, or whatever when I go into my recovey 2.5.5.0. its not there. NONE of my internal memory folders show up. The SD card memory is there.
Now I use FX file Exploerer....so to flash anything I must move the zip to the "O" folder and put it in downloads. Why isnt my internal memory not showing up? Its a real pain to have to keep moving files when the internal memory has them and it should show in recovery.
Am I missing something here?

Ummm...no suggestions?
Sent from my SGH-T999 using xda premium

alloycowboy said:
Ummm...no suggestions?
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Does it work with CWM?

re: sdcard/external sdcard
alloycowboy said:
I have searched around and cant find a answer for this. Its probably something simple that Im overlooking.
When I DL a rom,theme, or whatever when I go into my recovey 2.5.5.0. its not there. NONE of my internal memory folders show up. The SD card memory is there.
Now I use FX file Exploerer....so to flash anything I must move the zip to the "O" folder and put it in downloads. Why isnt my internal memory not showing up? Its a real pain to have to keep moving files when the internal memory has them and it should show in recovery.
Am I missing something here?
Click to expand...
Click to collapse
The 0 folder is the virtual sdcard (internal sdcard) and there is no need to use it at all, it has the exact same contents as /sdcard.
But don't think of it as a "duplicate" of some kind, it's a virtual partition so you really do not have any duplicate files or folders.
With your file manager navigate to the / root of the phone and there you will see /sdcard which is the default/normal internal sdcard,
If you want to check the external sdcard you would navigate to /storage/extsdcard .
The reason for this is that starting from v4.1.2 of the Jellybean firmware all future Jellybean firmwares are
mulit-user capable just like when you log into windows 7/8 which has the ability to handle more than one user
with security in mind.

I dont know if this helps but heres a lnk to check out.
http://teamw.in/androidmultiuser
Sent from my SGH-T999 using xda premium

re: very interesting reading... thanks!
DocHoliday77 said:
I dont know if this helps but heres a lnk to check out.
http://teamw.in/androidmultiuser
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Perhaps this is the reason why so many people who have flashed a 4.2.2 CM/AOSP/AOKP rom and for one reason
or another wanted to go back to the Touchwiz 4.1.1/4.1.2 roms kept having all these "error 7's" in twrp and cwm.

Thanks fellas. I will look into this a little further
Sent from my SGH-T999 using xda premium

Wasn't aware 2.5.5.0 was out...

Yes sir it is.
Sent from my SGH-T999 using xda premium

Actually, its 2.5.0.0.
Just fyi.
Sent from my SGH-T999 using xda premium

DocHoliday77 said:
Actually, its 2.5.0.0.
Just fyi.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
my point hidden... Cowboy, you figure it all out yet or you still all confuzzled?

[Q] Need help Clockwork recovery failed backup

Hey guys yesterday i tried to make a backup using clockwork recovery and it failed and now when i check my memory it says 800 free of 12.0 gb.
I dont know what to do there is no file or anything. Should i try to format my card?

killtrippy said:
Hey guys yesterday i tried to make a backup using clockwork recovery and it failed and now when i check my memory it says 800 free of 12.0 gb.
I dont know what to do there is no file or anything. Should i try to format my card?
Click to expand...
Click to collapse
Still need help please! I really dont want to replace my S3 for $125. Im sure something is able to fix it

What version of CWM do you have and what ROM are you running? And did you have that little space left all along or was it only after you tried making a backup?
Sent from my SGH-T999 using xda app-developers app

aussie88 said:
What version of CWM do you have and what ROM are you running? And did you have that little space left all along or was it only after you tried making a backup?
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Im not sure but its not that i tried to backup a stock version of the latest legit ROM from samsung and it failed and phone restarted and now it show like 500 mb's left on my phone. I check all files on the phone and nothing is taking up space all the files on my phone together is like 2gb. not sure whats wrong. I installed a different rom to check if thats a issue with the stock Samsung ROM but nope it still same.
EDIT: I just tried to format the DATA partition which it shows takes up 12GB but didnt do anything.

Well if you're running an older version of CWM, you will have issues with any 4.3 roms, stock or not. I would firstly upgrade to the latest version of CWM, and then if you can, use a root Explorer either on your phone or laptop to see hidden files.
I personally had an issue due to having an older version of CWM, and I had a few gb of data hidden behind a bunch of nested 0 folders.
If you still don't see anything, then maybe a format of the internal SD thru CWM is in order. Hopefully you have/are able to back up all that info before you need to do that tho.
Sent from my SGH-T999 using xda app-developers app

aussie88 said:
Well if you're running an older version of CWM, you will have issues with any 4.3 roms, stock or not. I would firstly upgrade to the latest version of CWM, and then if you can, use a root Explorer either on your phone or laptop to see hidden files.
I personally had an issue due to having an older version of CWM, and I had a few gb of data hidden behind a bunch of nested 0 folders.
If you still don't see anything, then maybe a format of the internal SD thru CWM is in order. Hopefully you have/are able to back up all that info before you need to do that tho.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
I am running the LATEST version of CWM i remembered i checked like 2 weeks ago i can check again but shouldnt be a problem. Ill check right now with root explorer and see if i find any files. I already backed up everything on my SD card.