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

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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 ...
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62 views

File copied to /system/bin keeps disappearing

After copying Sqlite3 to by /system/bin folder, the file disappears. I can successfully change the folder to rw and modify the file properties on sqlite3. However, as soon as I remount my /system as ...
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26 views

Android external uSD mount omap configurations

My issue is that my android OS is not recognizing my uSD slot as a mountable drive. I am working with a custom piece of hardware that is a carrier board for an SOM. The version of android is ...
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1answer
31 views

Is it possible to restrict an app's permissions to a specific folder(s) (and subfolders)?

When installing an app, depending on the app, access to the filesystem is required and requested at the time of install. Is it possible to restrict this to specific folders(s) and their subfolders? ...
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38 views

What are these small 8-4-4-4-12 hexdigits-named files in root dir?

(Post edited to add more info.) My Android phone contains, in the lowest user-accessible directories of both phone storage and SD card, several small files named xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx ...
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1answer
59 views

Where I can find factory home screen layout file?

Where I can find factory home screen layout file? I would like modify default layout which will persist after I will make a hard reset. Best Edit device: Lenovo A6000, kitkat 4.4.4 rom: orignal ...
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1answer
103 views

What is the content of data/misc/wifi/softap.conf?

I was going through a question about how to find a saved password in a rooted phone and while doing this I found a file in data/misc/wifi/softap.conf. What is the content of this file?
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1answer
46 views

how do I browse to files on my external sdcard when the phone is connected using MTP?

I have connected my phone to my computer (Win7) using MTP. I can browse to the H:\ drive and see things like music,amazonmp3, alogcat and so on. But when I use my phone's file manager to try and find ...
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1answer
52 views

Filesytem on Android

I'm totally confused regarding Android file system and its relation to SD card. While browsing my Asus Nexus 7 (2013) with file manager Astro from very root catalog I found directory sdcard. But ...
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1answer
97 views

Uninstall programs that are not visible in Application manager

I have an Asus Nexus 7 that is full of games that take up all 29 GB of memory. The kids installed these games, and they are not visible in the Application Manager. Perhaps they were installed in a ...
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1answer
109 views

Notification “not enough system space” appears when using Internet in Vivo Y15

When I surf the internet in my Vivo Y15 I see a notification "not enough system space". I cleaned the cache and system trash in my phone, but the notification still appears. How do I resolve this ...
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1answer
67 views

ES file explorer, how can I get the complete folder path?

Sometimes ES file explorer will open directly into a folder, for example if I download a file, it will ask if I want to open the files containing folder. I select yes and then get something like this: ...
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48 views

Nexus 5 bootloops when trying to use F2FS

I'm using a Nexus 5, with the Resurrection Remix v5.4.7 ROM. The default file system is ext4. I tried to change file system to F2FS, but it goes to infinite boot loop. I read somewhere that this ROM ...
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1answer
111 views

Help I accidentally removed the Media Scanner

A couple of hours ago I was cleaning out unnecessary apps on my phone (LG G3) using 3C Toolbox when I must have accidentally removed the app responsible for scanning my media. The Gallery & Music ...
2
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0answers
97 views

/storage/emulated/legacy is read only :(

For some reason, no apps on my phone (including adb, after running su) can modify any files in any subdirectory of /storage. I also can't use my file manager on my computer to edit, create, or delete ...
2
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2answers
139 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 ...
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1answer
66 views

How to boot an .iso file in Windows 8.1 using Android device?

Device: Redmi 1S (Hongmi 1S) Android: MIUI v5 (Android Jellybean v4.3) I have a Bitdefender rescue disk .iso file. I want to boot this rescue disk using an Android phone, just like a bootable USB ...
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335 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 ...
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0answers
68 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
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1answer
58 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 ...
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64 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 ...
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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 ...
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1answer
104 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. ...
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99 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, ...
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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 ...
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490 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 ...
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3answers
57 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?
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288 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 ...
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1answer
108 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 ...
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58 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
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1answer
327 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 ...
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63 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 ...
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2answers
116 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 ...
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66 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 ...
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33 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.
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1answer
180 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 ...
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1answer
72 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 ...
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59 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. ...
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1answer
121 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 ...
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68 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 ...
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2answers
72 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
68 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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130 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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1answer
116 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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2answers
4k 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 ...
12
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2answers
5k 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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1answer
85 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
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1answer
181 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
329 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
711 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 ...