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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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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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15 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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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
46 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
24 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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32 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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51 views

User names in an android shell

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
15 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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37 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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21 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
11 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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20 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
40 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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24 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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25 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
90 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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36 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
24 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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25 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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27 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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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
126 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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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
106 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
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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
97 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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46 views

Ambiguous folders in Google photos' backup selection

Is there any way to view the full paths of the device folders that Google Photos can backup. I have many folders named "photos", etc.
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1answer
261 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 ...
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1answer
127 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
122 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
24 views

file pathway changing

I have a zte n9120 avid 4g phone and whenever I try to download third party stuff I get a failed to download.....stating no sd card no download. I don't have an sd card installed but I've never had to ...
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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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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
1k 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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69 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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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 ...
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36 views

Bandcamp music transfered to sd card from PC not playing

I bought an album from bandcamp, and then transfered it to my Samsung S4 external SD card (which is brand new). Now when I go to Google Play Music, the first song is present. All the other songs are ...
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1answer
46 views

Weird folder keeps appearing in the internal memory

I have a Redmi Note 3 Pro handset (2 years old) in which I am using AOSP Custom ROM (Android 8.1). For last 1 year, a weird empty folder is getting created randomly on my internal memory. I generally ...
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2answers
72 views

Unable to mount /data after multiple wiped

Everytime I try to flash anything from TWRP it says "E: unable to mount /data". I have tried multiple wipes and entirely reflashing the os but everytime i finish setting up the phone after wiping it, ...
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1k views

Dual Messenger - Where are files stored (e.g., WhatsApp)

I had a working WhatsApp (say, WhatsApp W1 in phone PC) in my Samsung J7 Prime, Android 7, recovered with the usual Backup to/Restore from Google Drive, from phone A (PA). I meant to install a Dual ...
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54 views

Correct owers and permissions in /data/data (and correct way to fix)?

I have a backup of the app-data directory /data/data on my sdcard which has screwed up the permissions and probably owners. I'll copy some of the folders from the backup to /data/data. I suppose using ...
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47 views

System data folder size is 3.5GB on external sdcard second partition

I have created a second ext2 partition on my sdcard and use App2Sd to link apps on it. The problem is, I just discover a folder called system data that is 3.5GB and I don't know why is it and neither ...
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0answers
22 views

How to re-enable recycle bin checkbox in es file explorer pro

Just paid/upgraded to es file explorer pro. Used to have a checkbox to authorize transfer to the recycle bin or not when i deleted files. Now its gone with pro. Is this called an upgrade ? Or where ...
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41 views

Browse entire file system in “browse” dialog box?

I am trying to use KeePassDroid and when I select the browse button for the keyfile section it shows this screen: As you can see, it's only limited to "Recent, Images, Videos, Audio, Downloads". My ...
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62 views

Possible to extract a ZIP file saving original file timestamps?

Is it possible to extract a ZIP file preserving the timestamps of the files in the archive ? I'm on a Samsung device running 6.0.1, and every app I've tried saves extracted files with the current ...
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1answer
438 views

Access Android SD from Windows 7 via card reader

I want to backup my sd-card, before using it in my new phone. So I used a card reader to connect it to my Windows 7 notebook. Sadly the partition is not mounted to a drive letter, altough I can see it ...
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246 views

Mount encrypted emulated avd userdata-qemu.img.qcow2

I'm trying to make a backup of my AVD. To speed things up, I like to make incremental backups. Backing up the *.img.qcow2 file(s) is inefficient. I'd like to be able to mount the filesystem that ...
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63 views

Identifying hidden character in file name

This file name apparently contains a hidden character somewhere: /config/wifi/mac.txt I wrote a script to overwrite this file, but it creates another file with the same name. I copied this file to ...
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0answers
23 views

Share as file on filesystem?

Various apps have a "share" functionality which opens up several providers of media/means to share some piece of content (e.g. send over WhatsApp and many others). Is it possible to have a "sharing ...
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0answers
271 views

Filesystem for sdcard to store large file and apps access

I am running android oreo 8.1 (custom ROM) on Xiaomi Redmi Note 3 Pro. I have a 64GB memory card in which I want to store large files of size 15GB, 20GB etc. So I can't use FAT32 filesystem. I ...