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

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1answer
3k views

Does Android support the EXT (filesystem) for removable storage cards?

As the subject indicates, does Android support any of the Extended File Systems ("ext", "ext2", "ext3" and "ext4") for removable storage cards (such as Micro SDXC storage cards)? Android is a ...
2
votes
0answers
274 views

Select file from Downloads to upload via web form

I'm on a Samsung Galaxy S3 and want to upload a file from my Downloads folder to a website using a form on that web page. But when I click the button to browse for a file to upload, I can only select ...
2
votes
1answer
110 views

Shred an internal or system partition

There are quite a few apps that lets a user delete the media or data partitions so it won't be recoverable - by re-writing "junk" data over and over again on the free storage space. Still, is there ...
0
votes
0answers
60 views

Where Google drive shared link file stored?

I have opened a google drive sharing link of a zip file from browser with google drive app on android. there was a notification "Opening in drive". But after that again it asked for opening with ES ...
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vote
1answer
1k views

Unable to delete a file in /data/data with root permissions

I own a Moto G which is in 5.0.2 with KK bootloader. An app created a folder in /data/data which sustains in the memory even after uninstallation of the app. I couldn't remove the folder in any way. ...
8
votes
1answer
11k views

Best file system for an external SD card

I have a Galaxy S5 with Android 5 and got a new 64 GB SD card. What is the best file system for the SD card? FAT32 is not an option because I want files >4GB. Which file system offers the best ...
2
votes
3answers
764 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
0answers
860 views

Should I switch to F2FS?

I've heard a lot of hype about Samsung's filesystem named Flash-Friendly File System (or F2FS for short). I've heard about cases where the device apparently worked faster after switching to this ...
0
votes
1answer
232 views

With the stock Gallery app, how can I open an arbitrary image file by specifying its filesystem path?

I would like to know whether it is possible to open an arbitrary image file with the stock Gallery app (as distributed with the Samsung Galaxy SIII) by navigating the filesystem and drilling down the ...
0
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0answers
120 views

Edited build.prop of HCl me sync 1.0

I recently rooted my HCl me sync 1.0(u3) and changed the build.prop to download some unsupported app. But when I rebooted the tab it stuck in a bootloop(with the screen orientation changed). I have a ...
7
votes
1answer
1k views

How to “mount --bind” directories in Android 4.4?

I am just wondering is there a way to bind an internal /sdcard folder to another internal /sdcard folder and normal apps can write into it for Android versions since 4.4? I have a folder named ...
6
votes
1answer
186 views

How does antivirus find the files accessed by an application without root access?

I haven't rooted my mobile phone, but an antivirus is running. Without rooting, how will the antivirus come to know about the files accessed by an application? Normally, in Linux distributions, it ...
0
votes
0answers
244 views

Unable to find files copied from pc to internal storage

I have copied files (around 2GB) to my android phone's internal storage from my friend's pc. But I'm unable to find those files either by using file manager(root) or from my pc. When I checked my ...
0
votes
1answer
722 views

How can I determine the block size of the filesystem on my Android?

I'm creating a bunch of flash cards for use with AnkiDroid and many of them contain images or sound files. I would like to find a balance between image/audio file size, and clarity, without wasting a ...
0
votes
1answer
131 views

How can I restore a deleted file that I should not have deleted?

I used titanium backup to delete something I shouldn't have deleted and than I factory reseted my phone and now I can't log in with my Google accounts ,can anybody please tell me what I have got to ...
2
votes
1answer
319 views

Replaced /system/bin/toolbox. How to I revert that?

I renamed the original /system/bin/toolbox" to "toolbox_alt". I replaced the file /system/bin/toolbox with a file that was supposed to work, but doesn't work at all. My filemanagers and the most ...
0
votes
2answers
4k views

Galaxy S4's LCD broken. How do I access hidden folders in the storage using computer?

I recently broke my screen entirely so the touch function and LCD do not work at all on my Samsung Galaxy S4. I managed to plug in a keyboard to my phone to input my pass-code in order to unlock the ...
0
votes
2answers
119 views

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 ...
2
votes
1answer
677 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 ...
0
votes
0answers
405 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 ...
0
votes
1answer
172 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.
4
votes
2answers
13k 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 ...
18
votes
2answers
18k 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?
1
vote
1answer
136 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 ...
2
votes
1answer
344 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 ...
1
vote
1answer
747 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
votes
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
votes
1answer
5k 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 ...
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 ...
2
votes
1answer
805 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, ...
1
vote
1answer
196 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
votes
1answer
1k 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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vote
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 ...
0
votes
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 ...
1
vote
2answers
147 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 ...
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 ...
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vote
0answers
142 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. ...
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 ...
0
votes
2answers
3k 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 ...
1
vote
0answers
542 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 ...
0
votes
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 ...
0
votes
1answer
545 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 ...
0
votes
1answer
235 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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vote
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% ...
0
votes
0answers
1k 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 ...
1
vote
1answer
891 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 ...
1
vote
1answer
240 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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vote
0answers
135 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 ...
2
votes
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 ...
1
vote
1answer
769 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. ...