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

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2
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2answers
264 views

Is it safe to delete all empty folders in Android?

Almost every Android "cleaning" app (such as SD Maid) includes the ability to delete all empty folders. In operating systems such as Windows, this is generally not a good idea. Windows applications ...
0
votes
1answer
3k 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 ...
0
votes
0answers
557 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
1answer
64 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 ...
5
votes
2answers
2k views

Media on external sd card can be browsed but not seen by other apps (including settings>storage). Not part of the .nomedia file fiasco!

As the title says, if I fire up a file browser I can access all the files on the sd-card without a problem. I can even view the pictures with the gallery and the music app plays my music files ...
2
votes
2answers
12k views

I modified vold.fstab and lost access to my SD card

Background: I have Samsung Galaxy Ace GT-S5830, which has very low internal memory (181 MB). I have an external micro SD card of 16 GB, but still couldn't install many apps due to insufficient ...
30
votes
9answers
46k 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 ...
2
votes
0answers
92 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 ...
7
votes
3answers
6k views

Where does the 'set as wallpaper' feature save your picture in Gingerbread (2.3)?

I had an image from a website which I set as my background inside the browser. I am wondering now where I can find the image in the file system, because I can't find it online anymore. I already ...
0
votes
0answers
91 views

How to free more space from the /system partition

I'm trying to run Debian on Android 5.1 / nexus 10 following this tutorial : http://whiteboard.ping.se/Android/Debian at a certain point,I give these commands : root@manta:/data/local/tmp # mount ...
0
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0answers
27 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 ...
1
vote
1answer
167 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. ...
0
votes
0answers
112 views

Issues while eMMC partitioned using sfdisk in am335x based custom board

I know this is not Android related question but as mobiles/tables are using eMMC, developers might know solution ot this problem, I am writing firmware(MLO,u-boot.img, uImage(ver 3.12), dtb, ...
12
votes
5answers
10k 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, ...
0
votes
0answers
52 views

ext2 partition on embedded storage

I need a non-journaling filesystem partition on my main storage. I've never done any partitioning, and android's limited unix kernel is making it extra hard. Can anyone please guide me on how to ...
2
votes
0answers
821 views

Best Filesystem on 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 ...
0
votes
3answers
67 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?
0
votes
1answer
118 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
votes
0answers
424 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
0answers
66 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 ...
16
votes
1answer
50k views

What is the location of attachments that I download from the Gmail app?

I can't find where the files are saved after I download them from an email message. I'd be glad if you could direct me to the location.
0
votes
0answers
70 views

System App - Extra privileges, Read Only file system permission

I would like to read wpa_supplicant.conf file on android system that stores saved wifi network details along with credentials. The file is available and as a super user on a rooted device i can read ...
0
votes
0answers
78 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 ...
3
votes
3answers
4k views

How to clean up old application folders from prior ROM?

I installed CM10 on my GS2, and during the process I didn't format the file system as I wanted to retain my photos and music on the device. I was aware of an app called "SD Maid" that is supposed to ...
0
votes
0answers
34 views

Need help with system file vold.fstab

i have a proscan plt233g and i have a backup vold.fstab i just need help replacing the the file any way i can do this? I allready tried andriod commander but it cant detect my device.
12
votes
2answers
94k 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?
0
votes
1answer
73 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 ...
0
votes
1answer
243 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
2answers
12k views

How do I make /sdcard link point to external SD Card on Android 4.4.2?

I've got a Samsung GT-I9505 phone with Google Edition Rom installed. As my phone comes with 16Gb internal storage, I bought a 32Gb microSD. However, the phone still uses emulated SD card to store all ...
0
votes
0answers
63 views

The files on the external SD card are just shown for a few seconds after mounting

I have a Samsung Galaxy Note 2, with an external SD card of 64 GB. Since few weeks ago, I can just see and open the files stored on this external SD card for about 30 seconds, when I mount the card. ...
1
vote
1answer
135 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
0answers
79 views

chown system:system * at /

Accidentally executed this command in / in recovery. In X-Plore most of subfolders of / disappeared. Tried to fix using fix permissions. Haven't helped.Then tried to fix using chown root:root and ...
4
votes
2answers
5k 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 ...
0
votes
0answers
180 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 ...
12
votes
2answers
6k 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?
0
votes
1answer
123 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.
1
vote
1answer
95 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 ...
1
vote
1answer
783 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
206 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 ...
0
votes
1answer
376 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 ...
0
votes
0answers
183 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 ...
2
votes
1answer
312 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
116 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
703 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 ...
1
vote
0answers
75 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 ...
3
votes
2answers
189 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?
0
votes
1answer
868 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
108 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
3answers
4k 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 ...
0
votes
0answers
14 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. ...