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Questions tagged [file-system]

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

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20 views

datadata is full - and doesn't let me remove files

A really old Smartphone having Cyanogenmod on it provides only about 400 MB space for data/data. Now this space is full. df shows 0.0K of free space. The homescreen doesn't even appear, only errors ...
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15 views

adb shell push image to recent or downloads folders not on sdcard

I want to push images to one of this folders: with shell command. But file only appears on sdcard folder My last tries was: adb push C:\Users\User\Pictures\girl.jpg /data/media/0/Pictures/ adb push ...
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1answer
35 views

What is the “u#_everybody” UID?

In (multi-user) Android there are UIDs like these: u0_everybody u10_everybody u11_everybody Those seem different to the usual uXX_aYY UIDs used for the applications. What is their purpose? Is this a ...
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14 views

Photos are grey/corrupted?

Whenever I take pictures with my phone, the picture turns grey, with only a strip of the picture on the side. I recently reset my phone to try to solve the problem, and it worked, but then it started ...
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59 views

Is it possible to open a locked android device or access it's files without knowing the password?

I have a Samsung phone which is password protected it also has fingerprint enabled. I don't need to know how to open it I just want to know if it's possible to unlock it or access its files? There ...
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0answers
28 views

Which apps can find Non-root apps's data? [duplicate]

Where Android apps store data? I am trying to find all the app data of a game installed on my device(2.53GB) for move it to another device(first time) because I need to change my device soon... I don'...
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17 views

Enabling network unlock and custom abilities via user scripts?

Is it possible to unlock an android phone from any network and enabling custom abilities by manipulating system scripts with user scripts?
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1answer
49 views

How to create a copy of a file immediately when it's created? [duplicate]

I have an Android app that will create a file in /data/ and immediately delete it. I want to know how can I catch this file or create a copy or even disable user permissions to delete a file? I have ...
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35 views

Phone stuck in bootloop after renaming system APK

I have an xiaomi redmi note 5 rooted: to get rid of the notification system about new updates I've renamed the " Updater.apk " file on root /system/data/Updater , but now the phone in in bootloop. I'...
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13 views

Is it possible to create shortcut in Android file system without root?

Android system doesn't provide ways to create shortcut in file system. I have tried using termux to create shortcut in my file system, but I don't have the authority. Is there a way to create ...
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1answer
111 views

Why is the 'storage/emulated/' directory inaccessible?

The /storage directory and the /storage/emulated/0 directory is accessible in a non-rooted Android OS. So, why is the /storage/emulated directory not accessible in a non-rooted Android OS ?
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2answers
117 views

Is it possible to change file permissions on Android's internal storage?

How can I change file permission of a file on Android without rooting? I actually want to prevent some files from deletion. Note: I am asking of changing the file permissions of user-created files in ...
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1answer
67 views

Why files/directories under Android's root filesystem don't change across different version updates?

I compared 2 devices; one running Android v5.1.1 and other v9.0. So I noticed that files under /proc are same in both. Can anyone explain why there is no difference even though OEM's are different and ...
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18 views

Audio files disappeared from S8!

Don't know how long ago the files disappeared or whether it has to do my the Oreo upgrade recently; or using the phone's "fix now" button to delete leftover files; but the audio files that were less ...
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1answer
49 views

How to change the modified date of a file without root?

How do I change the modified date of a file, specifically PNGs, on Android without root? Total Commander failed to do it with a permission error Access Denied.
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24 views

cannot write to exFAT directory ( WhatsApp image directory)

so I am running a galaxy j7 on Android 7 nougat something very strange happened recently just to give you a background to not max out my internal storage I have mounted WhatsApp folder using a third ...
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0answers
20 views

Only few files are visible from 5TB exFat external hdd on Galaxy S8+

I have a 5TB external storage with many RAW photos and videos. They are sorted by dates in folders and the hdd itself is almost full. When I connect it to my PC, it recognizes all files and ...
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27 views

How to transfer system app (built-in app) from android to android?

I have Collins dictionary in my Samsung Galaxy S6 edge which is System app (it can only be disabled, no uninstall option). I want to transfer this dictionary to my j7 mobile but it does not transfers ...
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63 views

How can I restore deleted pictures from Android (LG G5, Android 7.0)?

I was looking at my phone pictures from my PC and I accidentally deleted them. I've looked on my PC trash but they are not there and I can't find them in my phone either. Is there any way I could ...
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3answers
112 views

How to access files via localhost in firefox browser

I'm looking for a way to access my devices files in Firefox. The reason for this is I want to use an extension to read *.md file. I know that I can use file:/// to access files, but the extension can'...
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1answer
54 views

Proc-folder: App generated almost a thousand sub-folders

When I was searching with the "File Manager" app (com.alphainventor.filemanager) for some files in the root-folder, it generated hundreds (almost a thousand) folders in the proc-folder. [I don't have ...
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1answer
62 views

Which part of Android directories contains so-called proprietary blobs?

When building AOSP (Android Open Source Project) or LineageOS, there is a tool named breakfast. It downloads proprietary blobs and integrates them to the source tree. I have read this article, does ...
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1answer
86 views

How to find UID of an app installed on Android and use it as a shell user?

I am trying to find a way to determine the user name of the current shell user from within a shell / terminal on an Android device. The Android environment that I have in /system/bin and /system/xbin ...
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1answer
18 views

View list of registered document providers

How do I check in Android which applications have registered their document providers? I hope no code is needed (I need it from user perspective), but if that's the only way then I can attempt that.
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47 views

Remote Connection to Phone's File System

I have been researching how it is possible to gain access to a phone's file system using something like the phone number, IMEI number or other identification number in a similar way that I can SSH or ...
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0answers
24 views

What's a good place for public SSH keys on my filesystem?

I'm using an SFTP server app on my Android phone (RedMi 3S); it's a typical Android app, not something requiring root or run as an ARM binary from the command-line). This server app lets me define ...
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1answer
14 views

I am trying to move a file from sdcard to another device folder and it fails with error that file is not there, but it is!

I am trying to move a file from /sdcard to another device file and I am getting the following: mv: bad 'xxxxxxxx.0': No such file or directory while ls -l shows the file in directory. The device is ...
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0answers
28 views

Clone userdata from xcover-3 to xcover-3ve g388f -> g389f

I have some very special questions for you. My friend gave me a broken xcover-3 g388f. He wants the data on it, so I "Chip off" the internal memory and read it out with a chip reader. Now he came to ...
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1answer
72 views

Delete file with special characters from un-rooted device

How can I delete a file with special characters from an un-rooted Android device? I used a web site to download a YouTube video to my mobile phone. The video name contained special characters (...
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0answers
33 views

Path to sensors and GPS data? (for Android Terminal)

For battery information, the path is /sys/class/power_supply/battery. What is the equivalent path for barometer (hPa), brightness sensor (lux) and GPS speed, altitude, latitude, longitude, accuracy?
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0answers
31 views

copying files from pc to android denied with error message unsupported file type

so I bought an android phone (moto g6 plus with android 8) and I want to restore some files which I backed up from my older phone (moto g 1st gen). I connect the phone to my PC (Windows) via a USB ...
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1answer
137 views

Difference between /mnt/sdcard and /sdcard

I'm in the beginning of Android kernel study and I'm looking at every directory in rooted Android. I realized that the same directories were in those two: /mnt/sdcard and /sdcard. What's the ...
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45 views

File system error when writing

I recently encountered a problem using Threema on LineageOS 15.1: I noticed that whenever I want to download a picture posted by someone else in a conversation, I get the message "Could not download ...
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1answer
28 views

Open file on tablet from smartphone

How do I view the files on my tablet from my phone? Do I have to connect wirelessly? I am working on a translation and would like to see the original on one tablet and the file I'm working on on the ...
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0answers
45 views

data/sensors_calibration_params.xml does not exist while factory reset

data/sensors_calibration_params.xml does not exist while factory reset of lenovo yoga tab 3 and it's battery is stuck at 0%. I have done factory reset and have tried different cords to charge but it ...
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0answers
32 views

Where does Google's Allo store (private) messages and media?

I suppose that messages and media sent and received in incognito mode are encrypted but they have to be stored or at least cached somewhere on the device as long as the timer, if any, has not finished....
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0answers
110 views

How does “Recycle master recycle bin” app recovering deleted files ? [closed]

There are many apps that recovers deleted data(images, video, PDF) i.e Disk digger , Dumpster e.t.c and these apps also ask for root , but here i want to know the process/methodology of simple ...
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1answer
244 views

Why do write attempts to /system/priv-app cause /system to switch to read-only?

I'm trying to write files to the /system/priv-app directory. I boot into recovery (TWRP) and run adb shell. ~ # mount /system ~ # mount rootfs on / type rootfs (rw,seclabel) ... /dev/block/mmcblkXXXX ...
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0answers
38 views

Linux automount corrupts ext4 partitions of Android install?

I've been experimenting with dual-boot between Linux and Android on an x86 device which came with Android + Windows preinstalled (Chuwi Hi10 Pro). I soon found out that simply booting Ubuntu (either ...
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1answer
222 views

How to delete SuperSu and changes it made

I inherited a Moto G3 which I unlocked and installed TWRP and a custom ROM. I foolishly attempted to install SuperSu. It supposedly changes some system files. Now I want it off the phone. In any ...
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1answer
51 views

is there a common symlink in android multi-users, access use's `root directory` ?

On test tablet. There are two users: /storage/emulated/0/AAA --onwer /storage/emulated/10/AAA --nomal user My attempt: adb shell "ls -l /storage/emulated/legacy/AAA" file dot exist. --failed ...
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1answer
123 views

android oreo , /system, /data and /sdcard for media

I am in need of a new mobile and the new kid on the block is Android 8.0 . From what little I could garner it seems there are three partitions by default which happen in an android phone. I come from ...
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1answer
348 views

How to access the full file system in Android 7 and higher?

I am running Android Nougat x86.But in Android Nougat, one of the adverse changes is the inability to even view the files. They are invisible, apparently even to root app. I already tried root ...
0
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1answer
191 views

Accessing music on samba share

I'm in the process of putting a large amount of music ~1.5TB (in many folders) into a samba share on ubuntu. I'm wondering what a good application to stream this to android would be, currently I can ...
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1answer
148 views

Recover hidden pictures from my system

I am currently using Calculator Vault to hide my photos and would like to recover all my photos. But my system does not want to start since this morning. I have the password with which I lock it. ...
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0answers
30 views

Duplicate photos not recognized by Google Photos app

I was writing a script and ran into some perculiar behaviour. For instance, do something like: newDir='/sdcard/Pictures/NewDirectory/' oldDir='/sdcard/Pictures/Screenshots/' newPic='Screenshot_Copy' ...
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1answer
47 views

DD fails beyond 2GB seek

When I try to use dd to flash images I see some issues when the seek value exceeds 2GB.(i.e. bs * seek >= 2GB). dd bs=512 count=8 if=sample.img of=/dev/block/mmcblk0 seek=4194304 dd: /dev/block/...
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1answer
2k views

Can't create new folders on SD card?

I'm using Lenovo A7000 with Lollipop and I can't create new folders on SD Card. Attempt to create folder on SD card always end with error, however, android phone is not going to tell me what error it ...
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0answers
84 views

How to scan internal memory of my Android phone around a certain index entry in order to find lost utf-8/LF (for Linux/Adroid) text?

About a month ago, I already posted this question on askubuntu.com, but nobody was able to give me a proper answer to it. Maybe this was because of the fact that it is actually more of an Anroid ...
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0answers
47 views

Where is the /data/system/called_pre_boots.dat file in nougat release?

ACTION_PRE_BOOT_COMPLETED is published after every system update and this information is available in /data/system/called_pre_boots.dat. However, in Nougat this file is removed. Question: Is this ...