A file system is the logical structure to organize (store, retrieve and update) data on a storage device.

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14
votes
1answer
40k views

Android Folder Hierarchy

On Android's root (/), what is the purpose of each folder? I want to learn the folder hierarchy structure. I would like to know the differences between Android 2.3 and 4.x, if they have different ...
23
votes
2answers
154k views

Where Android apps store data?

Could you list all possible directories where Android apps may store data, providing description what kind of data are stored in each directory?
35
votes
3answers
234k views

Where on the file system are SMS messages stored?

Where in the file system are SMS messages stored? I'm using ES File Explorer to browse around but can't seem to find this - is it on the phone or the SD, and where? I have an HTC Wildfire but I ...
10
votes
3answers
41k views

Can't remount /system in rw

I try desesperately to push an app with adb on the /system/app folder (to install the PlayStore on my low cost tablet). So i tried to remount the /system partition with root rights : mount -o ...
20
votes
1answer
37k views

Why did /sdcard/ turn into /sdcard/0/ with 4.2?

I've never seen this before so I'm assuming that it happened when I upgraded to 4.2: I'm fairly certain that /sdcard/ used to take me straight to my sdcard, but now when I go to that path (in CWM ...
15
votes
5answers
15k views

Disable USB charging

For some reasons not related to the battery life, I need to disable the battery charging when a USB host is connected to my phone (a rooted Nexus 4). Taking a look around on the internet (link1, ...
27
votes
6answers
137k views

Check and fix SD card errors within Android itself?

Sometimes my SD card gets "corrupted" and this leads to many read/write errors. Usually, connecting the SD card to the windows 7 and selecting the "Error Checking" (Right click the drive > Tools > ...
7
votes
2answers
60k views

How to prevent Android from creating LOST.DIR on SD card?

After the phone restarts, there is a LOST.DIR folder created on the external SD card. Is it possible not to create this folder if nothing is lost?
8
votes
3answers
89k views

Where can I find the OTA update file?

I'm trying to locate the zip file that contains the OTA update for my Droid Bionic. Right now, its failing to update, and every time it fails it deletes the file and I need to re-download it (takes a ...
6
votes
2answers
21k views

Where are the .apk files of currently installed apps stored on my Android device? [duplicate]

Possible Duplicate: Where in the file system are applications installed? How can I view the .apk files of currenly installed apps on my android phone?
9
votes
4answers
34k views

How can I view the Android internal partition table?

I've rooted my device, put it in recovery mode, and have linked it to PC by adb shell. How can I view the list of storage devices and partitions? Note: fdisk doesn't work.
3
votes
2answers
531 views

Where should I install Toybox?

I own a rooted Samsung Galaxy S Relay 4G running stock Android 4.1.2. If you have Android 6.0 "Marshmallow" or better, then you have Toybox. This is a package of command-line tools, handy for ...
6
votes
1answer
5k views

Android limited to 1 hour video recording?

At the moment, I am using the standard video recording app for video recording. I have found that the recording automatically stops after just 1 hour. Is this a deliberate limitation placed on the ...
0
votes
1answer
1k views

Corrupt SD card formatted as internal storage

So I'm on Marshmallow and have formatted my SD card as internal storage. Its filesystem got corrupt two weeks later for some reason. Plugging it to GParted, I see 16MB of FAT32 and the rest is an ...
44
votes
10answers
74k views

Not all files are visible over MTP

I have LG L5 (e610 model) device with Cyanogenmod 10. When I connect the phone to a computer with Linux (I have mtpfs installed), I can see both internal storage and the SD card. However when I ...
21
votes
4answers
39k views

What's the Android equivalent of /etc/fstab?

Sometimes I really wish they hadn't messed around with Linux so much! I know there's an /etc/fstab in there somewhere, but where? I'd like to mount some partitions with alternative filesystems ...
17
votes
6answers
19k views

Access Android device's file system over Bluetooth or Wi-Fi

I'm looking for a way to access the file system of an Android device (Nexus S) wirelessly, as its USB port has become unfit for anything but charging. Ideally, I'd like the same functionality as ...
11
votes
2answers
14k views

Which files/folders on my SDCard are unsafe to delete manually?

I've had my Droid for nearly a year now, and in the process of installing and uninstalling apps, moving data to and from my SDCard, and all the various things one does with a phone the SDCard has ...
6
votes
3answers
3k views

Is there a way to mount a Windows shared drive so I can access those files on my phone?

I have a shared network drive full of files I want to access from my phone over wifi. Is there a easy way to mount it on my phone? I have a rooted Motorola Milestone.
4
votes
1answer
11k views

Local files revisited: Opening local HTML files (file:///path/to/file) in Chrome on Android 4.x

There are other questions on this same topic, but I'm finding that on 4.0.4 with my HTC One, I can open file:/// URLs just fine with Firefox, but not with Chrome or the Android browser. Those two ...
4
votes
2answers
31k views

Format memory card with NTFS

I have a Galaxy SIII and 32GB memory card. I want format the memory card with NTFS just to get rid of 4GB size per file restriction. How can I format the card with NTFS and even if I format it with ...
4
votes
1answer
3k views

Does Android have a 2.1GB file size limit?

I have tried many voice recording type applications and the best I have found only allows me to do a recording upto a maximum file size of 2.1GB. I can do many of these 2.1GB recordings as I have a ...
2
votes
1answer
127 views

How to clear a Folder (e.g. Downloads) automatically on a regular/scheduled basis?

There is a folder on an Android phone that continually fills with junk. Instead of clearing that folder manually on a regular basis, how can I setup up a way to have that folder be automatically ...
2
votes
3answers
653 views

How to find out which file system is used by my device?

How do I find out which file system is used by my device's /system, /data and other partitions?
2
votes
1answer
4k views

Create a dd image of a Android 4.4.4 for forensics?

I'm a little new to the Android file system, I'm doing a project for a digital forensics class and I want to create a bit-for-bit image of my Nexus 5 running 4.4.4 stock, rooted. The normal way I ...
2
votes
1answer
3k views

Please explain the android partition structure to me?

I've tried finding the answer myself, but everything that I am able to see seems to miss out the really basic first steps. Here's my logic: FIRST Look at the phone's specification. Lets say Samsung ...
0
votes
1answer
311 views

data/app folder showing wrong folder names

After messing around with the xposed framework and installing lots of modules, I got into a bootloop (classic !), but I knew the solution was to add a disabled file in ...
18
votes
2answers
17k views

Which filesystem do Android use?

I know that android uses FAT32 for SD cards and mounts them via FUSE. But which FS is on / ? Some kind of ext? zfs?
8
votes
2answers
12k views

How to find the pathname of the swap partition on SD card?

As this warns, you should not enable swap on the wrong partition or you can destroy your phone: OK before we go any further! previous phones had a partition layout where mmcblck0 was the SDcard ...
2
votes
1answer
618 views

Where in the filesystem are settings saved? Namely ADB backup password

Where in the phone filesystem are settings saved? I've lost my ADB backup password and simply want to delete it. If it affects other settings that won't matter too much. I will be interfacing the ...
1
vote
0answers
7k views

“.walkfree” folder automatically created in SD card, and APKs downloaded into it without any notification

In my SD card a folder is created on its own named .walkfree by an unknown source, and in that it automatically downloads .apk files showing no notification of being downloaded, and if deleted, a new ...
0
votes
4answers
10k views

Windows mount android file system

I want to edit some files on my phone but I can not access the root folder on my phone. I'm using a rooted Google Nexus 5 running Android 5.0. I can read/write to my /, and /system by Android's ES ...
5
votes
4answers
21k views

download bigger than 4 gb file on android 4.0.4

How can I download files bigger than 4 GB on my Micromax A110 phone? FAT32 file system says that it does not support files larger than 4 GB. I know there is one more way to do that: EXFAT file ...
5
votes
1answer
8k views

How to browse file:/// URLs on my Android device?

I have some extensive documentation in HTML format that I want to carry around with me. On my old Gingerbread phone, I was able to save the entire "site" onto the phone's sd card and browse it with ...
2
votes
1answer
265 views

When should fstrim run?

Based on this cyanogenmod forum thread, I tried to address the delay in running applications and switching between applications on my Galaxy Nexus running cyanogenmod with Android 4.4.4 by running ...
2
votes
1answer
2k views

Android chroot ubuntu - is it possible to get ubuntu to recognise usb devices

I've managed to setup the chroot but I'm unsure how to get the chroot to recognise usb devices. I'll be doing so work with microcontrollers hence I neeed to to recognise my usb based programmer. For ...
0
votes
1answer
4k views

Backup app (Clash of Clans) data from the system partition; monitor app write activities

Yes, I know I can backup my village via google+; yes, I've tried that before; no, it didn't work for me the several times I did it and I don't want to do that again. I've also used the Titanium Backup ...
19
votes
2answers
95k views

How to access /storage/emulated/0/ from PC?

I want to export the settings of the K9 mail app. This app exports a settings file to /storage/emulated/0/com.fsck.k9/settings-4.k9s. But if I connect my Nexus 4 to my PC I cannot see such a file or ...
10
votes
1answer
3k views

What kind of data is stored in /data/user directory?

It seems to store some kind of application data, but how is it different from /data/data directory?
10
votes
7answers
20k views

Sharing files between users in 4.2.1

I have a Google Nexus 7, unrooted, running stock 4.2.1. I have set it up for two user and we seems to be enjoying it. Recently I ran into an issue about sharing files. In User1's account I copied few ...
8
votes
2answers
34k views

What exactly is framework-res.apk

As far as I understand it, it is a big system file that apparently controls a big part of the phone. I am interested because I wanted to do some themeing and so far I had edited SystemUI.apk, but if I ...
1
vote
1answer
103 views

Can I write to my device's root filesystem? Will my changes persist across reboots?

When I open up a terminal emulator and run the mount command, it indicates that my Android device's root filesystem (/) is of filesystem type rootfs. What is rootfs? Can I write to it? Will my changes ...
7
votes
1answer
11k views

Why can I not assign exec permissions to a file on the SD card?

shell@android:/sdcard/SW # ls -l -rw-rw-r-- root sdcard_rw 128 2012-09-22 11:42 usb0config.sh shell@android:/sdcard/SW # chmod 777 usb0config.sh ...
7
votes
1answer
3k views

Is it safe to manually delete the contents of the .Trash-1000 folder on my SDCard?

Can anyone please provide an explanation (or a good resource) of how the folder /mnt/sdcard/.Trash-1000 functions and whether or not it was safe to manually delete its contents? Based on the name and ...
4
votes
2answers
1k views

Is it possible to reorganize the SD card? Because it is a mess in there

One of the things I hate about Android is the folder organization. Each app creates its own folder, usually in the root of the SD card. When I'm trying to find something, I have to search it through ...
3
votes
1answer
8k views

Creating App and Swap partition for Android

I have got Karbonn A5+. I dont know how much ROM, RAM it exactly have. When I go to Settings > Applications > Manage Application it shows 191MB used, 11MB free. But, when I open Advanced Task Killer, ...
3
votes
4answers
5k views

Why do I get “not enough space” when I copy an APK file to /system/app?

I recently rooted my HTC Desire Bravo because I needed read/write access to /system/app in order to be able to copy an APK file there. I wrote here on stackexchange on the best solution to root the ...
2
votes
1answer
338 views

Recover files of an App

My phone is a Motorola MOTO G (first generation). Due to some troubles, I had recovered the factory settings of my phone. But I forget to backup some data of an app (Tricount). A this point my phone ...
2
votes
1answer
481 views

SD Card partition named differently on different devices - breaks music player

I have recently moved from a Droid 2 to Droid 3, both running Android 2.3. The same SD card registers as "sdcard" on the D2, and "sdcard ext" on D3. Probably for this reason, I am having problems with ...
1
vote
1answer
800 views

The /sdcard direcory and other directory conventions: how is the Android filesystem structured?

I am using the "adb shell" command to access either of an LG P690 (device A) or a Samsung Galaxy SIII (device B). Device A also has a 32GB microSD card plugged in while device B does not. When fromthe ...