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

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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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1answer
168 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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1answer
134 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
1k 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 ...
2
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1answer
337 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
708 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 ...
2
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1answer
776 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
194 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 ...
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0answers
91 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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2answers
258 views

selecting a chime in Caynax Hourly Chime

In Caynax Hourly Chime when I select chime option a dialog with a Search button appears. But while I have some sound file in my SD it do not show them. How can I choose chime file in this app?
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1answer
2k 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
143 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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2answers
4k 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
919 views

Where are my received voice notes saved?

I checked in the whatsapp media voice notes. But they are not there. Plz help me to find them urgently.
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0answers
140 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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1answer
1k views

Unable to access the “mmcblk0p6” file, on Samsung S5300 Mini Pocket

I have rooted my Samsung S5300 Mini Pocket Galaxy, and I have entrie SDK installed on my Windows 7 laptop. Now via Command Prompt I am able to: adb shell $ su # <--- and get root access ...
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1answer
232 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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1answer
5k views

Find what is creating folders on SD card

I got two useless folders on /sdcard/ (baidu and baiduMapSDK) and even though I delete them, they will generate automatically. How can I know which application or which process created these two ...
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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 ...
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0answers
532 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
266 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
531 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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2answers
5k views

How to download a phrasebook from google translate

So i've been using google translate for a while and there are a bunch of translated words and phrases that i have asked for to date stored on the device. I now want to take a copy of them to my PC (in ...
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1answer
6k views

Why does Android use fuse for internal SD card mount? [closed]

The android ICS or later version(JB) use /data/media directory for internal SD card, and use fuse for mounting the emulator internal sd card device (/dev/fuse). As we know if we use fuse, the files ...
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0answers
127 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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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
16k views

I'm seeing duplicated images and videos on Gallery

I'm facing a strange situation on my Nexus 4, with Android version 4.2.2. I've being using it for the past 2 months without any issues whatsoever (other than a "regular" battery performance), but ...
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1answer
871 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
236 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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0answers
133 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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0answers
189 views

How to hyperlink to file in KingsoftOffice?

I have an Excel spreadsheet created in Windows and open in Kingsoft Office. I would like to be able to create a hyperlink to specific files on the tablet itself. For example, I want to be able to ...
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1answer
3k 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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1answer
866 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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230 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
170 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
636 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 ...
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1answer
1k 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
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 ...
2
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1answer
663 views

Samsung Galaxy S4 play edition and exFat

Does the Play version of the Galaxy s4 include support for exFat in the sdcard reader? Or is exFat support one of the extras that Samsung adds to the device (presumably since they made the licencing ...
2
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1answer
4k views

How to check support for ext2 filesystem on android device

I have a android mobile with gingerbread 2.3.4 installed. I want to know if my device(kernel) supports ext2 filesystem. Is there any terminal command to check the support for ext2 filesystem ?
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4answers
528 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
533 views

Where is the temp file of recorder in Android?

Galaxy Note2 4.3 Samsung firmware. Recording for 1 hour with the highest quality, accidentally pressed "back" button, nothing saved. Usually the file would be saved automatically even if "back" is ...
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2answers
48k views

Moving apk to system/app. Operation failed

I have rooted my Nexus 5 and am trying to move an apk to the system/apps directory but keep getting "Operation Failed". I am trying to move from the /data/app directory to the /system/app directory to ...
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1answer
799 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 ...
2
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0answers
198 views

File transfer with multiple users

On a rooted Nexus 7 (2013), I have set up a second user. When I plug the usb cable to my mac, I can see all the files for the main user (using the Android File Transfer app from Google). However, ...
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1answer
1k views

Partition mounting on Android

On linux, "/etc/fstab" contains the directives how a partition should be mounted (fs type, flags etc.). On Android how it is determined? On my Nexus 7, I see a file called "fstab.flo" in "/" which ...
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1answer
234 views

execute permissions on fuse/fat filesystem

I've successfully cross-compiled Ruby for Android and everything goes ok in the emulator. But while I'm testing these funny things on my device (Nexus4) I noticed that /sdcard (or ...
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2answers
6k views

Viewing File System through a Windows Laptop

I have a HTC Desire X running Android 4.0.4 (not rooted). When I connect my phone to my Win7 Laptop, from my laptop, this is the filesystem I see LOST.DIR (Empty) ...
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1answer
62 views

How can I place a text file on my homescreen for editing?

I would like to place a textfile from my SD-card todo.txt on my home screen so I can click on it to edit the content and when I close it only that file would be saved. Ideally there would be a git ...
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1answer
5k views

Terminal “Permission Denied” - Need more info on error message

I am trying to run an executable from the android terminal with root permissions, but I am constantly receiving the following error: [ExecutableName] : permission denied I am confirmed to be loged ...