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

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cannot delete file with strange character

I am using JellyBean 4.1.2. There is a directory with a file that is with stange character. I use many app to delete it but did not success. And I use shell to look at it. When I issue ls command. it ...
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9 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 ...
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10 views

My Files is running very slow

When I open up My Files and select All Files the phone is processing for multiple minutes until i can do anything. It says Verwerken... in dutch (Processing). Once done after a moment it does the ...
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19 views

Change / add file in “Read only file system”

I want to add new command to my android 4.4.2. to do that I need to add alias line in the /system/etc/mkshrc file (bashrc in regular linux), or make symlink in the system/bin or system/xbin. but when ...
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1answer
47 views

File permission os SD card (FAT32)

Android uses FUSE for sd cards. Does FUSE support file permissions for SD card? If no - how do I install some apps on SD card? Cause there is no suuport for symlinks, execution permission etc.
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73 views

What file system for sdcard for KitKat

I have been searching the web and this website for information about the file systems supported by Android. I have not found anything though. Since KitKat (Android 4.4), some changes have been ...
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2answers
2k 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?
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12 views

How to log OS file access

I'm trying to see/log the files that are accessed/loaded by the operating system at a particular moment. I tried going trough the logs using Logcat but couldn't find anything useful (not saying there ...
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1answer
34 views

40GB of thumbnails in a 16GB device [duplicate]

I just found that my /sdcard/DCIM/.thumbnails folder grew to more than 40GB. Two .thumbdata3 files each large 20GB. My Galaxy S3 has only 16GB of internal storage. These files prevent me from backing ...
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1answer
43 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 ...
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1answer
64 views

Missing 2.2 GB of space on my micro SD card

I pulled my micro SD card out of my phone (LG G3) and inserted it into my PC (Kubuntu 14.04). I was in the process of moving several large video files off of the SD card onto my computer. Moving these ...
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1answer
62 views

How do the various tools to convert a system image to f2fs work?

Recently I've been trying to install a f2fs compatible rom to my old and slow nexus7. I got as far as flashing a new recovery image and reformatting the device partitions to the new file system, but ...
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1answer
430 views

XT1064 - 5.0.1 - Rooted - Issues with writing to /sdcard

I just rooted my Moto G 2014 XT1064 running 5.0.1. I used this article to do the root process: http://maktechblog.com/how-to-unlock-the-bootloader-and-root-the-motorola-moto-g-2nd-gen/#Root Which ...
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53 views

File system inaccessible as root, but works fine as user

I'm quite new in the Android development scene. Recently, I installed a custom KitKat ROM and I encountered a strange issue. It is related to my SD cards (one is somekind of "virtual card", it is the ...
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1answer
273 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 ...
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1answer
42 views

Self replicating worm in sd card

I have a Samsung Galaxy Grand with a 16gb micro-sd card. For some inexplicable reason, I am losing data on the sd card. Folder names are being changed to start with the character "μ." For example, ...
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1answer
32 views

Read/write application data on android

I want to view data of a specific application and ideally modify the data and upload it back. I know the application data files are implicitly protected to prevent malicious application stealing ...
2
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1answer
132 views

No USB Storage Mode on GalaxyNexus running 4.2.2

I have a GalaxyNexus running Android 4.2.2 I just want to quickly backup some data files to my PC. I'm pretty sure I've done this many times before, but I guess not on this phone. I have the Android ...
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0answers
51 views

File system content different on device and on desktop

I've got a Nexus 9 which I'm using to read PDF graphic novels. My process for getting the files onto the device is to connect it to my PC via USB and drag the files into the Download folder on the ...
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40 views

How to pull every file on the target device

My rooted device (production build) has been remounted successfully with: adb remount When I try to chmod -R 777 / it says : Unable to chmod /: Read-only file system The goal behind this ...
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1answer
82 views

Where can I find my App Folder when connected to Computer?

I need to put a .bak file inside my Application Folder. I connected my Android Device to my computer via USB, but I cannot locate my App inside any of those folders! I have unistalled the app and ...
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2answers
57 views

Where do I store my files such that they can be found?

I'm trying to install an app from an apk file, and I've moved it to my phone via USB; however, I cannot locate it. What would be an easy location to which I could move the apk file such that it would ...
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3answers
326 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 ...
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0answers
12 views

How To Prevent Lost.dir Completely? [duplicate]

Every time i reboot my android cellphone Lost.dir keeps coming back with around 10 gb of data in my 32gb SD card. Well, i know its just the recovery files created by android, and is safe to delete. ...
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17 views

Browsing PC from Samsung Galaxy SIII via Blutooth

I have a Samsung Galaxy SIII and would like to browse, copy, paste, and perhaps even edit my Windows 7 PC's files from it via Blutooth from wirelessly from another room. How can I achieve this? ...
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32 views

Difference between /mnt/local and /mnt/internal?

I have a WonderMedia 8650 based tablet running Android 4.0.3. The File Manager app shows the internal flash file system as "/mnt/local", I can also see a "/mnt/internal" filesystem that's identical. ...
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46 views

What is the 'garbage.sba' file in Android?

I am trying to gain some storage space on my rooted Samsung Galaxy SII i9100G and came across certain '.sba' files in my '/Andoroid' directory with file sizes of around 35 MB each like 'menu.sba', ...
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1answer
263 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 ...
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1answer
627 views

Unable to adb push on Samsung S4

I absolutely can't push to /system/app/ using adb on a rooted S4 with rw remounted filesystem. adb says: Read-only file system Mounts: /dev/block/platform/msm_sdcc.1/by-name/system /system ext4 ...
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0answers
97 views

Change File System of Internal Storage to EXT4

I have an Ainol tablet Novo 7, which has 16GB internal storage in FAT32 format. Due to the file system restriction, it can accept up to 4GB file size only. How can I format the internal storage to ...
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2answers
196 views

how to populate external SD for Android

Contrary to advice given here I'm not observing LOST.DIR folder created in cases of corruption. Here's my sequence of steps: Unmount external SD card in Android. Put it into external card reader for ...
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1answer
144 views

How do I mount an external disk drive formatted in ext4 via USB Host?

I plugged a 2.5 inch 1Tb drive into a Nexus 10 and I cannot see it anywhere really. Something pops up in ES File Explorer, but I cannot access the drive. Do I have to root my device, or is there some ...
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1answer
94 views

Which filesystems get overwritten when applying a ROM?

I'd like to better understand the process of writing a ROM (a zip package) to my Android phone. Checking with adb shell, the following filesystems are mounted on my phone: rootfs / rootfs ...
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83 views

Completely Full /system on CM11?

I installed CM11 from this thread on my old Nexus S 4g, thinking I could use it as a tiny server or something. However, it seems that the /system mountpoint, where things like /etc live, is ~100% ...
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470 views

In Android 4.1 what is the file structure in SDCard0

My question is not a duplicate of this question as in that post the OP is asking for where the apps are stored and my question is what is the file structure in Android 4.1 I know that installed apps ...
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1answer
304 views

Is it safe to rename, delete or disable system/bin/mediaserver?

mediaserver is constantly running in the background eating up CPU. I don't care at this point if I don't get to use the gallery app and I'm fed up with having to reboot every time I hop out of my ...
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1answer
83 views

Is Android FAT / FAT32 implementation power failure resilient?

Does the android FAT/32 implementation handle sudden battery removal? I know that Symbian's 'Rugged FAT' (efat32.fsy) and Microsoft's T-Fat implement this, but I've not been able to find any ...
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38 views

Accessing temp files created by an application

I have an application that I know writes temp files to the data/data/app-package directory. Using a file browsing app or windows explorer it seems these directories are sufficiently protected. Is ...
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1answer
643 views

What are `storage/emulated`, `mnt/sdcard`, `storage/sdcard`?

There have been questions about the old sdcard turning into sdcard0, which I understand to be part of the multiuser feature. What I don't understand is the 3 paths in the questions. Some of them look ...
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183 views

Filesystem format used for SD Card by Galaxy S3

When I remove the SD Card that was formatted by my Galaxy S3 from it and put it in a MacBook, fdisk shows its sole partition as having partition ID 0C, indicating that it is a Fat32 LBA partition. ...
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1answer
49 views

Folder turned into file?

Normally "DCIM" is a folder in which all photos that were taken with camera are stored. When I tried to take a photo with Google Camera, the app instructed me to insert a sd card before taking photos ...
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1answer
210 views

Android /d folder

On all of my devices there's a folder called /d on two of my devices it's full of folders, on the other it's empty. What is the /d folder? What is it for? And why is it empty on one device?
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1answer
57 views

Why can I see '/' in a file manager when my device is not rooted?

My device is not rooted: I have rooted it before, but I did a full factory reset using the Nexus Factory Images. Root Checker tells me it's not rooted, and SuperSU tells me that it cannot find SU ...
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0answers
281 views

How to change Android's default key press sound?

The phone is rooted, I tried changing the file/s; /system/media/audio/ui/*.ogg and their permissions; -rw-r--r-- but still plays the default. Restarting the phone doesn't work also. Am I ...
0
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0answers
58 views

Virtual SMB directory on sdcard

I have a Moto G with only 16 gigs of storage. It doesn't accept external sd cards. Therefore, I store some data on my phone and some on my networked drive, at home. This can be annoying because a lot ...
0
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1answer
524 views

Programmatically, how does “rooting” a device enable access? [duplicate]

From a layman point of view, one would say, "Oh, I'm unrooted so I am blocked and access is not allowed." I want the programmatic point of view; telling me how an unrooted device doesn't have access ...
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2answers
2k views

How to turn off the camera shutter sound on LG G2 mini?

Where is located the camera shutter sound file on LG G2 mini (Android 4.4.2)? Or how else to turn that annoying sound off? None of the solutions recommended in similar questions here does work. The ...
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1answer
5k views

Where to put supersu zip file while rooting HTC One M8

I'm following the instructions at http://htc-one.wonderhowto.com/how-to/unlock-bootloader-root-your-htc-one-m8-0154444/ and have found a stage where I don't have enough information, which is at Step 9 ...
5
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4answers
384 views

Folder that automatically uploads to phone

Here's something I that I want to do with my Android phone (Galaxy S2, CM9). I'll be happy if someone could tell me whether it's possible, and how. I often want to transfer files from my computer to ...
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1answer
426 views

File deleting problems after Android v4.4.2 upgrade? [duplicate]

Phone: Samsung Galaxy S3 Carrier: AT&T (US) Upgrade Path: v4.2 to v4.4.2 Is anyone else noticing SD card file deleting issues after the upgrade to Android v4.4.2? I use CoolReader to view ...